CN212694166U

CN212694166U - Head-mounted display equipment

Info

Publication number: CN212694166U
Application number: CN202021857670.2U
Authority: CN
Inventors: 董坤
Original assignee: Goertek Optical Technology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-03-12
Anticipated expiration: 2030-08-31

Abstract

The application provides a head mounted display device, includes: the audio playing device comprises a power supply assembly, a head band and audio playing assemblies arranged at two ends of the head band; the display device connected with the audio playing device comprises a display component and an eyeball tracking component, wherein the eyeball tracking component is used for capturing the size of the pupil of the human eye; the controller is arranged on the audio playing device and used for determining the pupil distance according to the size of the pupils of human eyes and generating a fine adjustment instruction according to the pupil distance; and the motor driving device is used for adjusting the position of the display device according to the fine adjustment instruction. The utility model provides a head-mounted display device sets up power supply unit and audio playback subassembly on audio playback device, has guaranteed to play the audio frequency of high tone quality effect when providing the power of large capacity to, can adjust display device's position according to the interpupillary distance, guaranteed that the user can clearly see the display image.

Description

Head-mounted display equipment

Technical Field

The application relates to the technical field of intelligent display, in particular to a head-mounted display device.

Background

Because of the limitations of control equipment process, GPU Processing capacity, power consumption and heat dissipation, the intelligent glasses are difficult to be made into the integrated AR glasses with the autonomous Processing capacity, which are consistent with the sizes of the myopia glasses, and even after being made, the battery capacity is generally about 200mAh because the positions of the glasses legs for storing the battery are small. The working time is short when the LCD (Liquid Crystal Display) and the optical machine are simultaneously opened, the practicability is not strong, in addition, the AR has no local installation of a large loudspeaker unit due to the limitation of the structure size of the AR, and the AR product has no high-sound quality effect. The related art combines the display function and the headphone function, but the picture presented in front of the eyes of the user may have an unclear problem.

Therefore, how to provide a solution to the above technical problem is a problem that needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide a head-mounted display device which can realize a high sound quality effect, increase a standby time, and can improve the definition of display. The specific scheme is as follows:

the application provides a head mounted display device, includes:

the audio playing device comprises a power supply assembly, a head band and audio playing assemblies arranged at two ends of the head band;

the display device connected with the audio playing device comprises a display component and an eyeball tracking component, wherein the eyeball tracking component is used for capturing the size of the pupil of human eyes;

the controller is arranged on the audio playing device and used for determining the pupil distance according to the pupil size of the human eye and generating a fine adjustment instruction according to the pupil distance;

and the motor driving device is used for adjusting the position of the display device according to the fine adjustment instruction.

Preferably, the display device further comprises a focus adjusting shaft, wherein the focus adjusting shaft comprises a telescopic outer arm and a telescopic inner arm.

Preferably, the display device further includes:

a distance sensor;

the controller is also used for controlling the focal length adjusting shaft to rotate according to the distance measured by the distance sensor so as to adjust the focal length of the display assembly.

Preferably, the eye tracking assembly comprises:

a plurality of infrared light sources and infrared cameras corresponding to the human eye.

Preferably, each of said human eyes corresponds to 6 of said infrared light sources.

Preferably, the method further comprises the following steps: the audio playing device and the display device are connected through the rotating shaft.

Preferably, the motor driving device includes two motors, and the two motors are respectively disposed at the rotating shafts of the two audio playing components.

Preferably, the audio playing device further comprises a switch assembly connected with the controller;

correspondingly, the controller is further configured to switch a working mode according to a switching instruction generated by the switch component, where the working mode includes an earphone mode corresponding to the audio playing device and a display mode corresponding to the display device.

Preferably, the switch assembly is a physical key and/or a push touch.

Preferably, the method further comprises the following steps: and the camera is connected with the controller and is used for acquiring the actions of the human body.

The application provides a head mounted display device, includes: the audio playing device comprises a power supply assembly, a head band and audio playing assemblies arranged at two ends of the head band; the display device connected with the audio playing device comprises a display component and an eyeball tracking component, wherein the eyeball tracking component is used for capturing the size of the pupil of the human eye; the controller is arranged on the audio playing device and used for determining the pupil distance according to the size of the pupils of human eyes and generating a fine adjustment instruction according to the pupil distance; and the motor driving device is used for adjusting the position of the display device according to the fine adjustment instruction.

It is thus clear that the head-mounted display equipment that this application provided sets up power supply unit and audio playback subassembly on audio playback device, has guaranteed to play the audio frequency of high tone quality effect when providing the power of large capacity to, display device's eyeball is tracked the subassembly and is caught people's eye pupil size, and then makes the controller generate the fine setting instruction according to the interpupillary distance that people's eye pupil size was confirmed, controls motor drive and adjusts display device, has guaranteed that the user can clearly see the display image.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic diagram of a head-mounted display device according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram of a principle of dual-motor synchronization provided in an embodiment of the present application;

fig. 3 is a schematic structural diagram of a head-mounted display device according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a display device 200 according to an embodiment of the present disclosure when it is folded;

fig. 5 is a schematic structural diagram of a display device 200 according to an embodiment of the present disclosure when it is placed down;

fig. 6 is a schematic structural diagram of a focal length adjustment shaft according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of another head-mounted display device provided in an embodiment of the present application;

fig. 8 is a schematic diagram of another head-mounted display device provided in an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Due to the control of the process of equipment and the limitation of processing capacity, power consumption and heat dissipation of a GPU, the existing integrated AR glasses with the autonomous processing capacity and the size consistent with that of the myopia glasses are difficult to manufacture, and even after the integrated AR glasses are manufactured, the battery capacity is generally about 200mAh due to the fact that the positions of the glasses legs for storing the battery positions are small. The working time is short when the LCD and the optical machine are opened simultaneously, the practicability is not strong, in addition, the AR is limited by the structural size of the AR, the AR does not have a large loudspeaker unit installed locally, and the AR product does not have a high-tone quality effect. Based on the above technical problem, the present embodiment provides a head-mounted display device, specifically please refer to fig. 1, where fig. 1 is a schematic diagram of a head-mounted display device provided in the present embodiment, and the method specifically includes:

the audio playing device 100 comprises a power supply assembly, a head band and audio playing assemblies arranged at two ends of the head band;

the display device 200 connected to the audio playing device 100 includes a display component and an eye tracking component, wherein the eye tracking component is used for capturing the size of the pupil of the human eye;

the controller 300 is arranged on the audio playing device 100 and is used for determining the interpupillary distance according to the size of the pupils of human eyes and generating a fine adjustment instruction according to the interpupillary distance;

and the motor driving device 400 is used for adjusting the position of the display device 200 according to the fine adjustment instruction.

Further description is made with respect to the audio playback device 100. The audio playing device 100 includes a power supply assembly, a head band, and audio playing assemblies installed at two ends of the head band. In the embodiment, the specific configuration of the audio playback device 100 is not limited in this embodiment, as long as the purpose of the embodiment can be achieved. In an implementation manner, when the audio playing device 100 is a headphone, the audio playing device 100 has two larger ear-bag structures, a power supply assembly with a larger capacity (the total capacity of the left and right power supply assemblies can reach about 1200 mAh) and an audio playing assembly with a larger unit can be added in the ear-bag structures, the audio playing assembly can be a loudspeaker, the power supply assembly with a larger capacity solves the problem that the display device 200 has a short endurance (the endurance can reach about 1.5h), and the audio playing device 100 adopting the ear-bag structure can prevent the sound fidelity, and solve the pain point with poor sound quality. In addition, in the present embodiment, the controller 300 is also disposed on the audio playing device 100, and may be disposed in the left and right structures of the audio playing component, so as to reduce the weight of the display device 200, optimize the weight ratio of the head-mounted display device, and make the user feel more comfortable when wearing the head-mounted display device.

Further, the audio playing device 100 may further include sound collecting components disposed in two ear-bag structures, and 2 linear arrays of microphones (microphone 1 and microphone 2) are disposed at two ends of the display device 200 for collecting voice signals, so that active voice noise reduction can be achieved through a dual-microphone noise reduction algorithm.

Further description is made with respect to the display device 200. The display device 200 may be AR (Augmented Reality) glasses or VR (Virtual Reality) glasses, and a user may customize a setting. The display device 200 is connected to the audio playing device 100, and the connection manner is not limited in this embodiment, and may be a connection manner through a rotating shaft, or may be a connection manner through a hole shaft, as long as the purpose of this embodiment can be achieved. The display device 200 includes a display component and an eye tracking component. Of course, the display device 200 may further include an optical engine and a waveguide lens, wherein the display module displays the target image and then maps the target image into the optical engine, and the optical engine projects the target image to the waveguide lens to enlarge the target image for the user to watch. The display device 200 can be rotated to the front of the eyes of the user to display a picture, and can be prevented from being positioned at the top of the head when not needed, and can be used as ordinary glasses in front of the eyes of the user.

Further, in order to simplify the operation of rotating the display device 200, the embodiment further includes: the hinge, the audio playback device 100 and the display device 200 are connected through the hinge. In this embodiment, the installation position of the rotating shaft may be on the audio playing component or on the headband, and the user can set the rotating shaft by self-definition. Preferably, the mounting position of the hinge can be on the audio playing component, in particular on the ear-bag housing of the headset. Of course, the rotation of the rotating shaft can be controlled by a motor or manually, and the user can set the rotation by self-definition as long as the purpose of the embodiment can be achieved. It can be seen that this embodiment simplifies operation by employing a rotating shaft connection.

Further, for the more balanced and effective driving of the display device 200 to rotate automatically, the present embodiment adopts a mode of rotating the rotating shaft by the motor driving device, specifically, the motor driving device 400 includes two motors, and the two motors are respectively disposed at the rotating shafts of the two audio playing components. In this embodiment, a dual-motor scheme is adopted, which requires a high requirement on the synchronization of the dual motors, and in this scheme, a scheme of outputting feedback signals to the left and right motors respectively to achieve synchronous rotation is adopted, please refer to fig. 2, where fig. 2 is a schematic diagram of a principle of dual-motor synchronization provided in this embodiment of the present application, and two motors directly communicate feedback signals to ensure rotation synchronization. Therefore, the mode that this embodiment adopted the bi-motor can more balance effectual drive intelligent glasses and rotate, realizes mode's conversion.

The eye tracking component in the display device 200 is used to capture the pupil size of the human eye, and in this embodiment, the position of the smart glasses relative to the human eye can be determined by the collected pupil size of the human eye, it can be understood that if the display device 200 is located on top of the human eye, the white part of the human eye in the image of the human eye is large, and if the display device 200 is located on bottom of the human eye, the white part of the human eye is small.

Further, please refer to fig. 3, fig. 3 is a schematic structural diagram of a head-mounted display device according to an embodiment of the present application, in which the eye tracking assembly includes: a plurality of infrared light sources 231 and infrared cameras 232 corresponding to human eyes.

In this embodiment, the number of the infrared light sources 231 is not limited, and the user can set the number by himself or herself, and may set the number to be any one of 2, 3, 4, 5, and 6, or of course, the number may be other, as long as the purpose of this embodiment can be displayed. It will be appreciated that there are multiple infrared light sources 231 associated with each eye, and one infrared camera 232 associated with each eye. The direction and the intensity of infrared light reflected by the eyeball irradiated by the infrared light source 231 are received through sensing, and the sizes of pupils of the eyeball and eyeball characteristics of different people are tracked through a series of algorithms.

Preferably, there are 6 infrared light sources 231 for each human eye. 3 respectively at the top and the bottom. In this embodiment, the infrared Light source 231 may be an infrared-Emitting Diode (LED) array, 6 infrared Light sources 231 are respectively provided for a left eye and a right eye, wherein the arrangement of the 6 infrared Light sources 231 is divided into 3 infrared Light sources above and 3 infrared Light sources below as much as possible, otherwise, a shadow of the infrared Light source 231 appears in a user's visual field, which affects a viewing effect, and the infrared camera 232 (one infrared camera is provided for each of the left eye and the right eye) receives the direction and intensity of infrared Light rays reflected by an eyeball irradiated by the infrared Light source 231 and tracks the size of the pupil of the eyeball (i.e., the size of the pupil) and eyeball characteristics of different people through a series of algorithms.

Specifically, in this embodiment, the power supply module, the audio playing module and the controller 300 are respectively installed in the left ear bag and the right ear bag, the display module of the display device 200 with the size of 0.5 inch corresponds to the optical machine one by one, and a waveguide lens is arranged right in front of the eyes, specifically, an integrated transparent waveguide lens is provided, and the lens is designed in an arc shape; the motor driving device 400 for fixing the position of the display device 200 on the left and right is a common direct current small motor installed at the rotating shaft of the left and right horns; the eye tracking assembly's LED infrared array light and left and right infrared cameras 232 are located at the display assembly.

Further description is provided with respect to controller 300. The controller 300 in this embodiment may include a CPU (Central Processing Unit), and may also include a GPU, which is not limited in this embodiment, and the user may customize the setting.

Further, the head-mounted display device in this embodiment may further include: video storage devices and UFS (universal flash storage) devices.

The head-mounted display device in this embodiment may further include: an IMU (Inertial measurement unit) device for operation mode monitoring. The IMU is a device for measuring the three-axis attitude angle and acceleration of an object. A typical IMU includes a three-axis gyroscope and a three-axis accelerometer, and a 9-axis IMU may also include a three-axis magnetometer.

The head-mounted display device in this embodiment may further include: a camera connected to the controller 300 and for capturing the motion of the human body. Specifically, the cameras may be cameras that implement a 6 × Dof (6 degrees of freedom) function, the 6Dof cameras are located on two sides of the display device, mainly to ensure that the view angle (FOV) is larger, such a design FOV can reach 270 °, the spatial modeling angle is wider, and certainly, the cameras may also be cameras that implement a 3 × Dof function, and a user may set the cameras in a user-defined manner as long as the purpose of the present embodiment can be achieved.

In summary, this embodiment replaces traditional glasses with the help of the ear-bag structure of audio playing component to press ear-type wearing mode through changing the wearing mode of head-mounted display device, thereby ingeniously increasing the capacity of power supply unit, and the controller 300 functional design is nimble, effectively strengthens the sound playing tone quality of audio playing component. In this embodiment, the audio playing apparatus 100 with the ear-bag design is used in conjunction with the separation design of the automatic display apparatus 200, so as to change the wearing mode of the head-mounted display device into the ear-bag wearing mode. The utility model is worn as a headset in a non-display mode, and is in an earphone mode at the moment; referring to fig. 4, fig. 4 is a schematic structural diagram of a display device 200 according to an embodiment of the present disclosure when it is folded, where the left and right sides include sound playing devices for playing audio. When the display mode function needs to be set, the display device 200 automatically rotates to a proper position of the eye to wear the display device 200, please refer to fig. 5, where fig. 5 is a schematic structural diagram of the display device 200 according to the embodiment of the present disclosure when it is placed down, and at this time, the display device 200 is in front of the human eye.

Based on the above technical solution, the head-mounted display device provided in this embodiment sets the power supply device and the audio playing component on the audio playing apparatus 100, and it is ensured that the audio with high sound quality effect can be played while a large-capacity power supply is provided, and the eyeball tracking component of the display apparatus 200 captures the size of the pupil of the human eye, so that the controller 300 generates a fine adjustment instruction according to the interpupillary distance determined by the size of the pupil of the human eye, and controls the motor driving apparatus 400 to adjust the display apparatus 200, thereby ensuring that the user can clearly see the displayed image.

Further, after the interpupillary distance is adjusted, in order to enable the user to view the image more clearly, the display device 200 in the head-mounted display apparatus provided in the present embodiment further includes a focal length adjustment shaft 130, wherein the focal length adjustment shaft 130 includes a telescopic outer arm 131 and a telescopic inner arm 132. The distance between the display device 200 and the human eye is adjusted by the focus adjustment axis 130. In this embodiment, the adjustment mode is not limited, and may be manual adjustment or automatic adjustment, as long as different clients can adapt to the head-mounted display device, please refer to fig. 6, and fig. 6 is a schematic structural diagram of a focal length adjustment axis provided in this embodiment of the present application.

Further, to achieve the automatic adjustment of the focal length, the display device 200 further includes: a distance sensor; the controller 300 is also configured to control the focal length adjustment shaft to rotate according to the distance measured by the distance sensor, so as to adjust the focal length of the display device 200.

The distance sensor is disposed near the display device of the display apparatus 200, measures a distance from a human eye to the display device, and then controls the focal length adjustment shaft to rotate according to the distance to adjust the focal length of the display apparatus 200. For a specific adjustment manner, please refer to the related art, which will not be described in detail in this embodiment.

Further, in order to realize the switching of the working mode, in this embodiment, the audio playing apparatus 100 further includes a switch component connected to the controller 300; correspondingly, the controller 300 is further configured to switch the operation modes according to the switching instruction generated by the switch component, where the operation modes include an earphone mode corresponding to the audio playing apparatus 100 and a display mode corresponding to the display apparatus 200.

In this embodiment, whether the display device 200 works in the display mode or the earphone mode can be realized by manually pressing a key, so that the head-mounted display device can be used for realizing augmented reality and can also be worn as a professional earphone. When the operation state is the display mode, the controller 300(CPU and GPU) uses more resources for image processing, and when the operation mode is the headphone mode, the controller 300 uses more resources for processing the sound quality to obtain more excellent sound quality. The switch assembly is not limited in this embodiment, and may be a physical key and/or a pressing touch member and/or a voice recognition member. The switching of the working mode and other functions are realized through the switch assembly, and the other functions comprise power on and off, volume increase and decrease, pause, music switching and the like. The physical keys comprise a starting key, a volume adding key, a volume reducing key and other keys, and the switching of the working mode and other functions are realized through the combination of the physical keys; the mode switching and other functions can be realized by the touch duration and the number of times of knocking the touch panel when the touch piece is pressed; the voice recognition part collects the audio, extracts keywords according to the audio and realizes mode switching and other functions according to the keywords. Of course, the switch component may be automatically turned on when the display device 200 and the audio playing device 100 are detected to be in the preset relative position.

Preferably, the switch assembly is a physical button and/or a push touch for the sake of simplifying the structure.

Wherein, a specific operation flow is provided for the switch component embodiment, including: pressing the start button, when the user wants to use the head-mounted display device as an AR display or a VR display, only the volume up button needs to be pressed simultaneously, the volume down button, the motor driving device 400 works at the moment, the display device 200 can land at the position of most of human eyes, then the optical machine and the display device 200 work, the eyeball tracking assembly works and captures the size of human eyes, so that the controller 300 judges whether the display device 200 at the moment meets the user requirement, if the user feels that the position of the display device 200 is not right (the human eyes have the difference of the size of the pupil when watching the blurred image), the controller 300 can finely adjust the size of the human eyes captured by the eyeball tracking assembly to the position suitable for the user in real time. Of course user's accessible microphone sends pronunciation, then the utility model discloses a head-mounted display device will remember this user's user information and the adjustment data that corresponds, and the next time is direct according to user information direct adjustment, uses more swiftly. If the volume up button is pressed after the preset time of starting up, the volume down button is not detected to be pressed simultaneously, at this moment, the utility model works in the earphone mode, and the display device 200 is not moved (kept at the top position); when in the display mode, the display device 200 rotates to the eye position; in addition, when in the display mode and the earphone mode, the three keys (the power-on key, the volume-up key and the volume-down key) are multiplexed, but the functions of the previous song and the next song can be realized by pressing the volume-up key and the volume-down key in the earphone mode. Therefore, the working mode is switched through manual key pressing, the wearing mode is innovated, the functional diversity of the product is increased, the practicability is high, and the market potential is huge.

Further, in order to improve convenience, the embodiment specifically includes a controller 300 configured to acquire user information and determine adjustment data according to the user information.

The controller 300 may specifically determine the adjustment data according to the user information in the subsequent operation after the user information is obtained for the first time, and then adjust the position of the display device 200 according to the adjustment data, where the technology implemented in the controller 300 is the prior art, and is not described in detail in this embodiment. Wherein, the user information includes but is not limited to user ID, pupil distance of the user, and the corresponding adjustment data includes but is not limited to: the adjusted position and the focus adjustment data of the display device 200 are displayed. Based on any of the above embodiments, the present embodiment provides a specific head-mounted display device, please refer to fig. 7, where fig. 7 is a schematic structural diagram of another head-mounted display device provided in the embodiments of the present application, including:

a controller 300, specifically a CPU, for system operation and component control, provided in the audio playback device 100; image and video memory units DDR and UFS provided in the audio playback device 100; a power supply device provided in the audio playback apparatus 100 for battery charging management and system power supply; an IMU provided in the audio playback apparatus 100 for operating condition monitoring; two audio playback components, left and right, disposed in the audio playback device 100; 2 linear arrays of microphones (microphone 1 and microphone 2) arranged in the audio playing device 100 are located at two ends of the display assembly, and are used for collecting voice signals and realizing active voice noise reduction through a dual-microphone noise reduction algorithm; the display device 200 comprises a display component and an optical machine which are arranged in the display device 200 and used for forming virtual images, wherein the display component and the optical machine of the display device 200 correspond to each other one by one, and an integrated transparent waveguide lens is arranged right in front of eyes and is designed in an arc shape; an infrared light source (LED infrared array lamp) and left and right infrared cameras of an eyeball tracking assembly provided in the display device 200 are located at the display assembly; the audio playing device 100 and the display device 200 are connected through a rotating shaft; the left and right fixed display device 200 is a motor driving device 400, and the motor driving device 400 is a common direct current small motor which is arranged at the rotating shaft of a left horn and a right horn; cameras disposed in the display device 200, the cameras (6DOF camera) being located at both sides of the glasses, mainly for the purpose of ensuring a larger view angle (FOV), such a design FOV can be up to 270 °, and the spatial modeling angle is wide; also included is a physical key, which may include: power on and off, volume keys and multifunctional keys. Please refer to fig. 8 for a specific position of partial arrangement, and fig. 8 is a schematic diagram of another head-mounted display device according to an embodiment of the present disclosure.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software component executed by a processor, or in a combination of the two. The software components may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

A head-mounted display device provided by the present application is described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims

1. A head-mounted display device, comprising:

2. The head-mounted display apparatus of claim 1, wherein the display device further comprises a focus adjustment shaft, wherein the focus adjustment shaft comprises a telescoping outer arm and a telescoping inner arm.

3. The head-mounted display apparatus according to claim 2, wherein the display device further comprises:

a distance sensor;

4. The head-mounted display device of claim 2, wherein the eye tracking assembly comprises:

5. The head-mounted display device of claim 4, wherein 6 of the infrared light sources correspond to each of the human eyes.

6. The head-mounted display device of claim 4, further comprising: the audio playing device and the display device are connected through the rotating shaft.

7. The head-mounted display device of claim 6, wherein the motor driving device comprises two motors, and the two motors are respectively disposed at the rotating shafts of the two audio playing assemblies.

8. The head-mounted display device of claim 1, further comprising a switch component connected to the controller;

9. The head-mounted display device of claim 8, wherein the switch component is a physical key and/or a push touch.

10. The head-mounted display device according to any one of claims 1 to 9, further comprising: and the camera is connected with the controller and is used for acquiring the actions of the human body.