WO2023071742A1

WO2023071742A1 - Head-mounted display apparatus

Info

Publication number: WO2023071742A1
Application number: PCT/CN2022/124160
Authority: WO
Inventors: 李晓雷; 韩文强
Original assignee: 歌尔科技有限公司
Priority date: 2021-10-29
Filing date: 2022-10-09
Publication date: 2023-05-04
Also published as: CN113960797A

Abstract

A head-mounted display apparatus (100), comprising a head-mounted bracket (10) and a display device (20). The head-mounted bracket (10) is provided with a viewing window area; the display device (20) is arranged on the head-mounted bracket (10); the display device (20) comprises a first driving member (21), a rotary shaft (22) and a display bar (23); the rotary shaft (22) is located in the viewing window area and is in transmission connection with the first driving member (21); the display bar (23) extends outwards from the rotary shaft (22) in the radial direction of the rotary shaft (22), so as to be driven by the first driving member (21) to rotate along with the rotary shaft (22) to form a display screen; and the display screen at least partially coincides with the viewing window area. Provided is the head-mounted display apparatus (100) having a large field of view.

Description

head mounted display device

This application claims the priority of the Chinese patent application with the application number 202111286269.7 and the title of the invention "head-mounted display device" filed with the China Patent Office on October 29, 2022, the entire contents of which are incorporated in this application by reference.

technical field

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

Background technique

With the continuous development of head-mounted display devices such as augmented reality devices and virtual reality devices, users have higher and higher requirements for viewing angles of head-mounted display devices. Therefore, how to increase the field of view of the head-mounted display device has become an urgent problem to be solved by the research and development personnel.

Contents of the invention

The main purpose of this application is to provide a head-mounted display device, aiming to provide a head-mounted display device with a large viewing angle.

In order to achieve the above purpose, a head-mounted display device proposed in this application includes:

a head mount having a window area; and

A display device, the display device is arranged on the head-mounted bracket, the display device includes a first driving member, a rotating shaft and a display bar, the rotating shaft is located in the window area, and is in transmission connection with the first driving member , the display bar extends outward from the rotating shaft along the radial direction of the rotating shaft, so as to form a display screen as the rotating shaft rotates under the driving of the first driving member, and the display screen and the window area are at least partially overlapped.

In an embodiment of the head-mounted display device of the present application, the display device includes a plurality of display bars, and the plurality of display bars are arranged at intervals along the circumferential direction of the rotating shaft.

In an embodiment of the head-mounted display device of the present application, the plurality of display bar bodies can be folded in the same direction.

In an embodiment of the head-mounted display device of the present application, a plurality of display bars are sequentially sleeved on the rotating shaft along the axial direction of the rotating shaft, and the plurality of display bars include an active display bar and several driven display bars. The active display bar is fixedly connected to the rotating shaft, and several of the driven display bars can be rotatably sleeved on the rotating shaft;

Wherein, the active display bar rotates with the rotating shaft and drives several of the driven display bars to rotate sequentially, so that the multiple display bars are folded or unfolded.

In an embodiment of the head-mounted display device of the present application, two adjacent display bars are defined as a first display bar and a second display bar, and the surface of the first display bar facing the second display bar is set There is one of protrusions and grooves, the surface of the second display bar facing the first display bar is provided with the other of protrusions and grooves, and the part of the grooves along the rotation axis Extending in the circumferential direction and having two ends spaced along the circumferential direction of the rotating shaft, the protrusion is slidably inserted into the groove;

Wherein, when the protrusion abuts against one end of the groove, the first display bar and the second display bar are in an unfolded state, and when the protrusion abuts against the other end of the groove , the first display bar and the second display bar are folded in the same direction.

In an embodiment of the head-mounted display device of the present application, the head-mounted display device further includes a connecting rod, one end of the connecting rod is connected to the display device, and the other end of the connecting rod is rotatably arranged on the The head-mounted bracket, when the connecting rod swings, it drives the display device into and out of the window area.

In an embodiment of the head-mounted display device of the present application, the head-mounted display device further includes a second driving member, the second driving member is arranged on the head-mounted bracket, and is connected with the connecting rod in transmission, to drive the connecting rod to swing.

In an embodiment of the head-mounted display device of the present application, the head-mounted bracket is provided with a mirror frame, and the display device is slidably connected with the mirror frame so as to slide along the length direction of the mirror frame.

In an embodiment of the head-mounted display device of the present application, the head-mounted display device further includes a third driver, and the third driver is in transmission connection with the display device to drive the display device along the frame slide in the length direction.

In an embodiment of the head-mounted display device of the present application, the head-mounted display device further includes a pupil detector, and the pupil detector is arranged on the head-mounted support for capturing the position of the user's pupil.

The head-mounted display device of the present application drives the display bar to rotate through the first driver to form a display screen. When the display bar displays images during the rotation process according to the preset program, the user can see on the display screen by using the principle of persistence of vision. complete picture. This application adopts the method of rotating the display bar for imaging, which has a larger field of view compared with traditional optical imaging, and can provide users with a better immersive experience.

At the same time, the head-mounted display device of the present application does not need to be equipped with an optical lens group, which can reduce the volume and weight of the head-mounted display device, making it easier for the user to wear the head-mounted display device, and improving the user's wearing experience; The problems of image distortion, diffraction dispersion, and halo caused by the lens make the image display clearer, and the image can only be viewed on the user side, which improves the privacy of the head-mounted display device; in addition, when the display bar rotates, it forms Similar to the effect of a fan, it can play a role in accelerating heat dissipation and cooling.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creative effort.

FIG. 1 is a structural diagram of an embodiment of a head-mounted display device according to the present application;

FIG. 2 is a structural diagram of the display device in the head-mounted display device shown in FIG. 1 when it is folded;

FIG. 3 is a side view of the head-mounted display device of the present application;

Figure 4 is an enlarged view of the display device in Figure 3;

Fig. 5 is a side view of an embodiment of the display bar of the present application;

Fig. 6 is the front view of Fig. 5 display bar;

Figure 7 is a side view of another embodiment of the display bar of the present application;

Figure 8 is a front view of the bar shown in Figure 7;

FIG. 9 is a schematic structural diagram of the head-mounted display device of the present application;

FIG. 10 is a flow chart of the first embodiment of the control method of the head-mounted display device of the present application;

FIG. 11 is a flow chart of the second embodiment of the control method of the head-mounted display device of the present application;

FIG. 12 is a flow chart of the third embodiment of the control method of the head-mounted display device of the present application;

FIG. 13 is a flow chart of the fourth embodiment of the control method of the head-mounted display device of the present application.

Explanation of reference numbers:

标号label	名称 name	标号label		名称name
100100	头戴显示设备head mounted display device	231231	显示条主体 display bar body
1010	头戴式支架Head Mount	232232	连接部 Connection
1111	镜框 picture frame	233233	凸块 Bump
1212	保护壳 protective case	234234	凹槽 groove
1313	镜腿Temple	24twenty four	轴承bearing
2020	显示装置 display device	3030	连杆link
21twenty one	第一驱动件 first driver	4040	第二驱动件second driver
22twenty two	转轴 shaft	5050	第三驱动件third driver
23twenty three	显示条 display bar	6060	瞳孔检测器pupil detector

The realization, functional features and advantages of the present application will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relationship between the components in a certain posture (as shown in the drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

In this application, unless otherwise clearly specified and limited, the terms "connection" and "fixation" should be interpreted in a broad sense, for example, "fixation" can be a fixed connection, a detachable connection, or an integral body; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be an internal communication between two elements or an interaction relationship between two elements, unless otherwise clearly defined. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In addition, descriptions such as "first", "second" and so on in this application are only for description purposes, and should not be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present application.

The specific structure of the force feedback device proposed by the present application will be described in specific embodiments below:

Please refer to FIG. 1 to FIG. 3 , in some embodiments of the head-mounted display device 100 of the present application, the head-mounted display device 100 includes:

Head-mounted support 10, said head-mounted support 10 is provided with window area; and

A display device 20, the display device 20 is arranged on the head-mounted bracket 10, the display device 20 includes a first driving member 21, a rotating shaft 22 and a display bar 23, the rotating shaft 22 is located in the window area, and is connected with The first driving member 21 is transmission-connected, and the display bar 23 extends outward from the rotating shaft 22 along the radial direction of the rotating shaft 22 to rotate with the rotating shaft 22 driven by the first driving member 21 A display screen is formed, and the display screen at least partially overlaps with the window area.

The head-mounted display device 100 of this application can be applied to head-mounted display devices 100 such as virtual reality devices, augmented display devices, or mixed reality devices. When the user wears the head-mounted display device 100, the head-mounted display device 100 can The screen is displayed in front of the user's eyes for an immersive experience. In the existing head-mounted display device 100, commonly used display technologies include LCOS+prism (Liquid Crystal On Silicon, liquid crystal on silicon or liquid crystal on chip, reflective projection display technology), Micro OLED+ free-form surface (organic light-emitting diode micro-display technology), LCos (reflective projection display technology)/DLP (digital light processing projection technology) + optical waveguide, LBS (laser scanning projection technology) + holographic reflective film, LCOS + prism system has a small field of view, only 15 degrees , but the thickness of the optical lens is about 10mm, and the brightness is not enough, the image has a large distortion. "Rainbow" phenomenon and halo, the yield rate is low, affecting the use effect.

In the head-mounted display device 100 of the present application, a head-mounted bracket 10 is provided as an installation base. Commonly, the head-mounted bracket 10 can be a glasses structure, including a mirror frame 11 and temples, or a helmet structure or other structures. form. Two window areas are formed on the head-mounted support 10 corresponding to the left and right eyes of the human body, and at least one window area is provided with a display device 20. The display device 20 includes a first driver 21 arranged on the head-mounted support 10 and a first The display bar 23 that the driver 21 is transmission-connected, the display device 20 also includes a rotating shaft 22 that is located at the window area and extends along the vertical direction of the window area, and the display bar 23 rotates on the axis 22 along the radial direction of the rotating shaft 22 (that is, the direction of the window area). plane direction) extension setting. At this time, the first driving member 21 is connected to the rotating shaft 22 in transmission, so as to drive the rotating shaft 22 to rotate and drive the display bar 23 sleeved on the rotating shaft 22 to rotate the display screen showing a circle at the same time. When the program changes the display pattern during the rotation process, the user can watch the complete picture on the circular display screen by using the principle of persistence of vision. Moreover, the image is displayed by rotating the display bar 23, without having to set an optical lens group for refraction and reflection like traditional optical imaging, which can avoid image distortion, and also avoid diffraction dispersion that causes the image to have "rainbow" phenomenon and halo, and improve the user's ability to view images. Real-time clarity, providing users with a better immersive experience. Furthermore, the reduction of the set of optical lens groups can reduce the volume and weight of the head-mounted display device 100 , making it easier for the user to wear the head-mounted display device 100 and improving the wearing experience of the user. At the same time, the display bar 23 is used to display the imaging, and the light-emitting surface of the display bar 23 faces the user side. Compared with the traditional optical imaging projected on the entire optical lens, the application can only see the imaging picture on the user side, which improves the head-mounted display. Privacy of device 100 . Furthermore, when the display bar 23 is rotated, a fan-like effect is formed, which can also accelerate heat dissipation and cooling.

It should be noted that, in the technical solution of the present application, two sets of display devices 20 can be installed in the head-mounted display device 100 corresponding to the left and right eyes of the human body, and the rotation directions of the two sets of display devices 20 can be reversed, so as to offset the single display bar 23 The gyro effect brought about by the rotation (the gyro effect is that the rotating object has inertia to maintain its rotation direction (the direction of the rotation axis 22)), reduces vibration and improves user experience.

It should also be noted that, in this embodiment, the first driving member 21 can be a driving motor, and the rotating shaft 22 can be the output shaft of the driving motor, so that the display bar 23 is connected with the output shaft to rotate with the output shaft; the rotating shaft 22 can also be Only the shaft connected with the first driving member 21, the first driving member 21 can also be a cylinder; the first driving member 21 can drive the rotating shaft 22 to drive the display bar 23 to rotate, and can also directly drive the display bar 23 to rotate around the rotating shaft 22. The transmission connection mode between a driving member 21 and the rotating shaft 22 or the display bar 23 may be, but not limited to, gear transmission, belt transmission or linkage 30 transmission, which is not specifically limited here. In a preferred embodiment, the first driving member 21 is a driving motor, and the display bar 23 is connected to the output shaft of the driving motor, so that the structure is simple, the transmission process is reduced, and the transmission efficiency is improved.

Therefore, it can be understood that the head-mounted display device 100 of the present application drives the display bar 23 to rotate through the first driver 21 to form a display screen. When the display bar 23 displays images during the rotation process according to the preset program, the principle of visual persistence , the user can see the complete picture on the display. The present application adopts the method of rotating the display bar 23 for imaging, which has a larger field of view compared with traditional optical imaging, so as to provide users with a better immersive experience.

At the same time, the head-mounted display device 100 of the present application does not need to be equipped with an optical lens group, so that the volume and weight of the head-mounted display device 100 can be reduced, making it easier for the user to wear the head-mounted display device 100, and improving the user's wearing experience; Due to the problems of image distortion, diffraction dispersion, and halo caused by the installation of optical lenses, the image display is clearer, and the image can only be viewed on the user side, which improves the privacy of the head-mounted display device 100; in addition, the display When the bar 23 rotates, it forms an effect similar to a fan, which can accelerate the heat dissipation and cooling down.

Referring to FIG. 1 , in some embodiments of the head-mounted display device 100 of the present application, the display device 20 includes a plurality of display bars 23 , and the plurality of display bars 23 are arranged at intervals along the circumference of the rotating shaft 22 .

It can be understood that the head-mounted display device 100 of the present application uses the first driver 21 to drive the display bar 23 to rotate, so that the user can see the complete picture by using the principle of persistence of vision, but the time of persistence of vision is about 0.05 to 0.2 seconds If only a single display bar 23 is provided, the first driving member 21 needs to drive the rotating shaft 22 and the display bar 23 to rotate at a higher speed, which will easily accelerate the wear of the motor. In this embodiment, a plurality of display bars 23 are used to be arranged at intervals along the circumferential direction of the rotating shaft 22 of the first driving member 21, and each display bar 23 can display a picture according to a preset program, which can reduce the rotation speed of the display bar 23 and avoid the first step. A driving member 21 keeps high-speed driving for a long time and affects its service life.

It should be noted that, in this embodiment, the display device 20 is provided with a plurality of display bars 23 , which may be two or more, which is not specifically limited here.

Please refer to FIG. 2 , in some embodiments of the head-mounted display device 100 of the present application, a plurality of the display bar main bodies 231 can be folded in the same direction.

In this embodiment, the display bar main bodies 231 of the multiple display bars 23 can be folded in the same direction, so that when the display device 20 is not in use, the multiple display bars 23 can be folded to reduce the display bar 23 in the same direction. The occupied area of the head-mounted support 10 enables the user to directly observe the display scene through the head-mounted support 10 . Specifically, the display bar 23 can be detachably arranged on the rotating shaft 22, so that the display bar 23 can be disassembled to the same direction when not in use, or the display bar 23 can be rotatably connected to the rotating shaft 22 in the following embodiments, so as to Rotate the display bar 23 so that the display bar 23 is folded in the same direction; when the display bar 23 is connected to the rotating shaft 22, it can be folded and unfolded manually, or it can be rotated forward and backward through the rotating shaft 22 in the following embodiments to make multiple The display bar 23 is automatically folded and unfolded.

Please refer to FIG. 4 to FIG. 8 , in some embodiments of the head-mounted display device 100 of the present application, a plurality of display bars 23 are sequentially sleeved on the rotating shaft 22 along the axial direction of the rotating shaft 22, and a plurality of the display bars 23 The display bar 23 includes an active display bar 23 and several driven display bars 23, the active display bar 23 is fixedly connected to the rotating shaft 22, and the plurality of driven display bars 23 can be rotatably sleeved on the rotating shaft 22 ;

Wherein, the active display bar 23 rotates with the rotating shaft 22 and drives a plurality of the driven display bars 23 to rotate sequentially, so that the plurality of display bars 23 are folded or unfolded.

In this embodiment, a plurality of display bars 23 of the display device 20 are sequentially sleeved on the rotating shaft 22 along the axial direction of the rotating shaft 22, and one of the display bars 23 is fixedly connected to the rotating shaft 22 as an active display bar 23, so that in the first The driving member 21 drives the rotating shaft 22 to rotate together with the rotating shaft 22; at the same time, the remaining display bars 23 are connected to the rotating shaft 22, and are connected to the active display bar 23 to rotate around the rotating shaft 22 under the drive of the active display bar 23 as a slave. The display bar 23 is moved. It can be understood that the driven display bar 23 is rotatably connected with the rotating shaft 22, so that any driven display bar 23 can rotate relative to the active display bar 23, so that when the display device 20 is not in use, multiple driven display bars 23 can be rotated. Turn and fold to overlap with the active display bar 22, so that multiple display bars 23 can be folded in the same direction; when it is necessary to use the display device 20 to play images, then turn the multiple driven display bars 23 to the preset position It only needs to make a plurality of display bars 23 arranged at intervals along the circumferential direction of the rotating shaft 22 . In this embodiment, a locking and releasing structure, such as an electromagnet, can be provided between the active display bar and the driven display bar 23. When the driven display bar 23 needs to be folded or unfolded, the driven display bar 23 The lock release structure between the bar 23 and the active display bar 23 is released, so that the driven display bar 23 rotates relative to the active display bar 23 on the rotating shaft 22 until the driven display bar 23 turns to the desired position, and then the lock is released. The structure fixes the driven display bar 23 and the active display bar 23 so that the active display bar 23 drives the driven display bar 23 to rotate, and the locking and releasing structure can be an electric control structure such as an electromagnet. Of course, the cooperative relationship between the driven display bar 23 and the active display bar 23 may also be the cooperative structure in the following embodiments, which will not be repeated here.

In some embodiments, the display bar 23 includes a connecting portion 232 and a display bar main body 231. The connecting portion 232 is sheathed on the rotating shaft 22, and its outer contour can be in any shape. The radially outward extension of the display bar main body 231 is used to display images, so that the display area and the connection area of the display bar 23 are set in partitions, which is convenient for the structural design of the display bar 23 .

Please refer to FIG. 4 to FIG. 8, in some embodiments of the head-mounted display device 100 of the present application, the two adjacent display bars 23 are defined as the first display bar 23 and the second display bar 23, and the first display bar 23 The surface of the bar 23 facing the second display bar 23 is provided with one of the bump 233 and the groove 234, and the surface of the second display bar 23 facing the first display bar 23 is provided with a bump 233 and the other one of the groove 234, the groove 234 extends along a part of the circumference of the shaft 22 and has two ends spaced along the circumference of the shaft 22, the protrusion 233 is slidably inserted into the groove 234;

Wherein, when the protrusion 233 abuts against one end of the groove 234, the first display bar 23 and the second display bar 23 are in an unfolded state, and the protrusion 233 and the groove 234 When the other end of the first display bar 23 and the second display bar 23 are folded in the same direction.

In the technical solution of the foregoing embodiments, the active display bar is used to move several driven display bars to rotate sequentially, so that the multiple display bars are folded or unfolded. In this embodiment, any adjacent two display bars 23 are defined as a first display bar 23 and a second display bar 23, and bumps 233 and grooves 234 are provided on the surface of the first display bar 23 facing the second display bar 23 One of them, the other one of the protrusion 233 and the groove 234 is set on the surface of the second display bar 23 facing the first display bar 23, the groove 234 extends along the partial circumference of the rotating shaft 22, and the groove The central angle corresponding to 234 is consistent with the angle between the first display bar 23 and the second display bar 23 when they are opened; at this time, when the first driving member 21 drives the rotating shaft 22 and the first display bar 23 to rotate in one direction , the protrusion 233 slides in the groove 234 until the protrusion 233 abuts against one end of the groove 234. At this time, the first display bar 23 and the second display bar 23 are in an unfolded state, and a plurality of display bars 23 are toggled sequentially, so that a plurality of display bars 23 are in an unfolded state, and the unfolded state can be maintained to rotate with the rotating shaft 22 . When the first driving member 21 drives the rotating shaft 22 and the first display bar 23 to rotate in the opposite direction, the protrusion 233 slides in the groove 234 until the protrusion 233 abuts against the other end of the groove 234. At this time, the second The first display bar 23 and the second display bar 23 are folded in the same direction, and the plurality of display bars 23 are moved sequentially, so that the plurality of display bars 23 are all folded in the same direction.

It should be noted that, in this embodiment, a plurality of display bars 23 arranged in sequence along the axial direction of the rotating shaft 22 may be toggled sequentially, so that two adjacent display bars 23 form a preset angle, so that the plurality of display bars 23 It is arranged at intervals along the circumference of the rotating shaft 22; when the head-mounted display device 100 is turned off or sleeps, the first driving member 21 drives the first display bar 23 to rotate in another direction, so that the plurality of display bars 23 are sequentially reversed and retracted. Fold in the same direction. Of course, it is also possible to make the display bar 23 in the middle move the display bars 23 on both sides to rotate between the three adjacent display bars 23, and only need to set the included angle according to the expanded angle of the two adjacent display bars 23. The length of the corresponding groove 234 is sufficient. Further, in some embodiments, in order to reduce the friction between the display bar 23 and the rotating shaft 22 , a bearing 24 is often provided between the connecting portion 232 of the display bar 23 and the rotating shaft 22 , so that the distance between the display bar 23 and the rotating shaft 22 Rotation is smoother.

Please refer to FIG. 1 and FIG. 2 , in some embodiments, the head-mounted display device 100 further includes a connecting rod 30 , one end of the connecting rod 30 is connected to the display device 20 , and the other end of the connecting rod 30 Rotatably disposed on the head-mounted bracket 10 , the connecting rod 30 drives the display device 20 into and out of the window area when swinging.

In this embodiment, the display device 20 is arranged to be foldable relative to the head-mounted support 10. Specifically, the window area of the head-mounted support 10 is set up against the eyes of the user, and the frame 11 as a skeleton is provided, and the connecting rod 30 One end is connected to the mirror frame 11, and the other end of the connecting rod 30 is connected to the display device 20, so that the display device 20 is hung at the position of the window area so as to face the user's eyes. Further, the connecting rod 30 is rotatably connected with the frame 11, so that when the user does not need to watch the display screen, rotating the connecting rod 30 moves the display bar 23 out of the window area, preventing the display device 20 from blocking the user's sight.

Further, in some embodiments, the display device 20 is provided with a plurality of display bars 23, and the plurality of display bars 23 can be folded in the same direction. The connecting rods 30 are stacked, and then the connecting rods 30 are rotated so that the display bar 23 and the connecting rods 30 are folded into the mirror frame 11 , further reducing the space occupied by the folded display device 20 .

Further referring to FIG. 1 and FIG. 2, in some embodiments of the head-mounted display device 100 of the present application, the head-mounted display device 100 further includes a second driver 40, and the second driver 40 is arranged on the head-mounted display device 40. The bracket 10 is connected with the connecting rod 30 in transmission, so as to drive the connecting rod 30 to swing.

In this embodiment, the second driving member 40 drives the connecting rod 30 to rotate to drive the display device 20 to be folded into the frame 11 of the head-mounted display device 10 , thereby reducing manual operations and improving the automation of the head-mounted display device 100 . Wherein, the second driving member 40 may be but not limited to a cylinder or a motor, and the transmission connection relationship between the second driving member 40 and the connecting rod 30 may be but not limited to belt transmission, gear transmission or connecting rod 30 transmission and the like.

Referring to FIG. 9 , in some embodiments, a control module is provided in the head-mounted display device 100, and the first driver 21, the display bar 23, and the second driver 40 are all electrically connected to the control module, and the control module is provided with a corresponding control module. The program controls the display screen of the display bar 23 by transmitting control signals to the display bar 23 , and controls the start and stop of the first driver 21 and the second driver 40 to control the structural state and operating state of the display device 20 .

Please refer to FIG. 1 , in some embodiments of the head-mounted display device 100 of the present application, the head-mounted support 10 is provided with a mirror frame 11, and the display device 20 is slidably connected with the mirror frame 11 so as to slide along the mirror frame 11. slide in the length direction.

Specifically, the window area of the head-mounted support 10 is set facing the eyes of the user, and is provided with a frame 11 as a skeleton. Generally, the length direction of the frame 11 is the direction of the line connecting the eyes of the user. In this embodiment, the display device 20 is slidably connected with the frame 11, and can slide along the length direction of the frame 11, so that the position of the display device 20 can be adjusted according to the pupil positions of different users, so that when different users use the head-mounted display device 100, the display device 20 can be directly facing the The pupil of the user improves the applicability and user experience of the head-mounted display device 100 .

In some embodiments, the display device 20 is provided with a connecting rod 30, one end of the connecting rod 30 is connected to the display device 20, and the other end of the connecting rod 30 is transmission-connected to the second driving member 40 to be driven by the second driving member 40 Rotating in the plane direction of the window area, at this time, the second driver 40 can be slidably connected to the frame 11 of the head-mounted bracket 10, so that the display device 20 can slide along the length direction of the frame 11 to adjust the position of the display device 20.

Please refer to FIG. 1 , in some embodiments of the head-mounted display device 100 of the present application, the head-mounted display device 100 further includes a third drive member 50, and the third drive member 50 is in transmission connection with the display device 20, to drive the display device 20 to slide.

The display device 20 is driven to slide in the head-mounted support 10 through the third driving member 50 , so as to reduce manual operations and improve the degree of automation of the head-mounted display device 100 . Wherein, the third driving member 50 may be but not limited to a cylinder or a motor, and the transmission connection relationship between the third driving member 50 and the display device 20 may be but not limited to belt transmission, gear transmission or connecting rod 30 transmission.

Please refer to FIG. 3 , in some embodiments of the head-mounted display device 100 of the present application, the head-mounted display device 100 further includes a pupil detector 60, the pupil detector 60 is arranged on the head-mounted support 10, and Electrically connected with the third driving member 50, the pupil detector 60 is used to capture the position of the pupil of the user.

In this embodiment, a pupil detector 60 is set in the head-mounted display device 100, and both the pupil detector 60 and the third driver 50 are electrically connected to the control system of the head-mounted display device 100. At this time, the pupil detector 60 detects the user's Pupil position, and the pupil position is fed back to the control system, the control system determines the gaze position corresponding to the current pupil position on the window area according to the pupil position, and calculates the offset and offset direction of the display device 20 and the gaze position, and then Control the third driving member 50 to drive the display device 20 to slide along the length direction of the mirror frame 11 according to the offset amount and offset direction, adjust the position of the display device 20, so that the display device 20 reaches the gaze position, so that the user can clearly and intuitively watch the display picture. In this embodiment, the head-mounted display device 100 can capture the pupil positions of different users and automatically adjust the position of the display device 20 , improving the applicability and automation of the head-mounted display device 100 . At the same time, in this embodiment, the pupil position of the user can be monitored in real time through the pupil detector 60, and the position of the display device 20 can be correspondingly adjusted according to the user's pupil focus direction, so that the user's field of vision is wider and can be adjusted according to the user's pupil focus direction. The content played by the display device 20 improves user experience.

Please refer to FIG. 1 to FIG. 3 , in some embodiments of the head-mounted display device 100 of the present application, the head-mounted support 10 is provided with a protective case, and the protective case is arranged in the window area and is made of a transparent material. The display device 20 is disposed in the protective case.

In this embodiment, the head-mounted support 10 also includes a protective case. The setting of the protective case can prevent the display device 20 from rotating and scratching the user when the user wears the display device 20, and also prevent the display device 20 from being affected by the interference of foreign objects on its rotation, thereby ensuring The performance and usage safety of the display device 20 are displayed.

Further, in some embodiments, according to the vision of the user, the shell structure on the side of the protective case close to the user can be set as a concave lens or a convex lens, so as to meet the needs of nearsighted users and farsighted users and improve user experience .

Referring to FIG. 10 , the present application also proposes a control method for a head-mounted display device 100, and the control method for the head-mounted display device 100 includes the following steps:

Step S10, acquiring the user's pupil position;

Step S20, adjusting the position of the display screen according to the position of the pupil;

Step S30, controlling the display bar 23 of the display device 20 to rotate and play an image.

It can be understood that when the user wears the head-mounted display device 100 and starts the head-mounted display device 100, the control module receives the operation instruction of the head-mounted display device 100, and then acquires the user's current pupil position, and determines the The current gaze position of the user on the window area, and calculate the offset and offset direction between the display device 20 and the gaze position, and then control the display device 20 to slide along the length direction of the mirror frame 11 according to the offset amount and offset direction, so that The display device 20 moves to the gaze position. When the display device 20 arrives at the gaze position, the control device controls the first driver 21 to drive the display bar 23 to rotate, and controls the display bar 23 to play images, so that the user can clearly watch the display device 20 play. screen.

Further, referring to FIG. 11 , in some embodiments, the head-mounted display device 100 includes a pupil detector 60, and the step of adjusting the position of the display screen according to the pupil position includes:

Step S22, determining the gaze position corresponding to the pupil position on the window area according to the pupil position;

Step S24, judging whether the position of the display screen is consistent with the gaze position;

Step S26, if the position of the display screen is inconsistent with the gaze position, controlling the display screen to move to the gaze position.

In some embodiments, the display device 20 includes a plurality of display bars 23 , and the plurality of display bars 23 can be expanded radially or collapsed in the same direction.

Based on the above hardware architecture, referring to FIG. 12 , the step of controlling the display screen to move to the gaze position further includes:

Step S28 , controlling the multiple display bars 23 of the display device 20 to expand to a preset position.

The control method also includes the steps of:

Step S40, receiving a shutdown or hibernation command;

Step S50, controlling the plurality of display bars 23 of the display device 20 to collapse to a preset position.

It can be understood that when the user does not need to use the head-mounted display device 100, the head-mounted display device 100 is turned off or in a sleep state. At this time, the control module controls the first driving member 21 to drive the multiple display bars 23 to fold in the same direction. ; When the control device receives the power-on command again, it controls the first driver 21 to drive a plurality of display bars 23 to expand, and then controls the plurality of display bars 23 to rotate and play images.

In this embodiment, the first driving member 21 drives the plurality of display bars 23 to rotate or unfold, which may be such that the connecting parts 232 of the plurality of display bars 23 are arranged in sequence along the axial direction of the rotating shaft 22, so that two adjacent The display bar 23 is the first display bar 23 and the second display bar 23 as an example, the connecting part 232 of the first display bar 23 is connected with the rotating shaft 22 to rotate with the rotating shaft 22, and the second display bar 23 The connecting portion 232 of the display bar 23 is rotatably sleeved on the rotating shaft 22, and the surface of the connecting portion 232 of the first display bar 23 facing the second display bar 23 is provided with a bump 233 and a groove 234. One of them, the surface of the connecting portion 232 of the second display bar 23 facing the first display bar 23 is provided with the other of a protrusion 233 and a groove 234, and the groove 234 is along the rotation axis. A portion 22 extends circumferentially and has two ends spaced along the circumferential direction of the rotating shaft 22 . The protrusion 233 is slidably inserted into the groove 234 .

At this time, when the first driving member 21 drives the first display bar 23 to rotate in one direction, the protrusion 233 slides in the groove 234 until the protrusion 233 abuts against one end of the groove 234. At this time, The first display bar 23 and the second display bar 23 are in an unfolded state, and the plurality of display bars 23 are sequentially driven, so that the plurality of display bars 23 are in an unfolded state. When the first driving member 21 drives the first display bar 23 to rotate in another direction, the protrusion 233 slides in the groove 234 until the protrusion 233 abuts against the other end of the groove 234. At this time, the first The display bar 23 and the second display bar 23 are folded in the same direction, and the multiple display bars 23 are driven sequentially, so that the multiple display bars 23 are all folded in the same direction.

Further, in some embodiments, the head-mounted display device 100 further includes a connecting rod 30 and a second driving member 40, the second driving member 40 is arranged on the head-mounted bracket 10 and is in transmission connection with one end of the connecting rod 30, so as to The connecting rod 30 is driven to rotate, and the other end of the connecting rod 30 is connected to the display device 20 . At this time, the second driving member 40 drives the connecting rod 30 to rotate so that the display device 20 enters and exits the window area.

Based on the above hardware architecture, referring to FIG. 13 , the step of controlling the multiple display bars 23 of the display device 20 to collapse to a preset position further includes:

Step S52 , controlling the connecting rod 30 to rotate to drive the display device 20 away from the window area.

Similarly, the step of controlling the display screen to move to the gaze position includes:

Step S261, controlling the connecting rod 30 to drive the display device 20 to move to the display position;

Step S262, controlling the connecting rod 30 to swing to drive the display screen into the window area.

It can be understood that in this embodiment, when the head-mounted display device does not need to work, the display device 20 can be completely folded and removed from the window area, so as to prevent the display device 20 and the connecting rod 30 from blocking the user's line of sight; only when the user needs to When the display device 20 is used, the second driver 40 is controlled to drive the connecting rod 30 to rotate to drive the display device 20 into the window area, and then the first driver 21 drives the display bar 23 to rotate, and controls the display bar 23 to play images, so that the user Watch the display screen.

The above is only a preferred embodiment of the application, and does not limit the patent scope of the application. Under the application concept of the application, the equivalent structural transformation made by using the description of the application and the contents of the accompanying drawings, or direct/indirect use All other relevant technical fields are included in the patent protection scope of the present application.

It should be noted that, as used herein, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or system comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or system. Without further limitations, an element defined by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article or system comprising that element.

The serial numbers of the above embodiments of the present application are for description only, and do not represent the advantages and disadvantages of the embodiments.

Various embodiments in this specification are described in a parallel or progressive manner, each embodiment focuses on the differences from other embodiments, and the same or similar parts of the various embodiments can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and for related details, please refer to the description of the method part.

Claims

A head-mounted display device, characterized in that it includes:

a head mount having a window area; and

A display device, the display device is arranged on the head-mounted bracket, the display device includes a first driving member, a rotating shaft and a display bar, the rotating shaft is located in the window area, and is in transmission connection with the first driving member , the display bar extends outward from the rotating shaft along the radial direction of the rotating shaft, so as to form a display screen as the rotating shaft rotates under the driving of the first driving member, and the display screen and the window area are at least partially overlapped.
The head-mounted display device according to claim 1, wherein the display device comprises a plurality of display bars, and the plurality of display bars are arranged at intervals along the circumferential direction of the rotating shaft.
The head-mounted display device as claimed in claim 2, wherein a plurality of said display bars can be folded in the same direction.
The head-mounted display device according to claim 3, wherein a plurality of display bars are sequentially sleeved on the rotating shaft along the axial direction of the rotating shaft, and the plurality of display bars include an active display bar and several A driven display bar, the active display bar is fixedly connected to the rotating shaft, and several of the driven display bars can be rotatably sleeved on the rotating shaft;

Wherein, the active display bar rotates with the rotating shaft and drives several of the driven display bars to rotate sequentially, so that the multiple display bars are folded or unfolded.
The head-mounted display device according to claim 4, wherein the two adjacent display bars are defined as a first display bar and a second display bar, and the direction of the first display bar towards the second display bar One of the protrusions and grooves is provided on the surface of the second display bar, the other of the protrusions and grooves is provided on the surface of the second display bar facing the first display bar, and the groove is along the A portion of the rotating shaft extends circumferentially and has two ends spaced apart along the circumferential direction of the rotating shaft, and the protrusion is slidably inserted into the groove;

Wherein, when the protrusion abuts against one end of the groove, the first display bar and the second display bar are in an unfolded state, and when the protrusion abuts against the other end of the groove , the first display bar and the second display bar are folded in the same direction.
The head-mounted display device according to claim 1, wherein the head-mounted display device further comprises a connecting rod, one end of the connecting rod is connected with the display device, and the other end of the connecting rod is rotatably Located on the head-mounted bracket, the connecting rod drives the display device into and out of the window area when swinging.
The head-mounted display device according to claim 6, characterized in that, the head-mounted display device further comprises a second driving member, the second driving member is arranged on the head-mounted bracket and connected to the connecting rod transmission connection to drive the connecting rod to swing.
The head-mounted display device according to claim 1, wherein the head-mounted bracket is provided with a mirror frame, and the display device is slidably connected with the mirror frame so as to slide along the length direction of the mirror frame.
The head-mounted display device according to claim 8, characterized in that, the head-mounted display device further comprises a third driving member, and the third driving member is in transmission connection with the display device to drive the display device along the The frame slides lengthwise.
The head-mounted display device according to claim 9, characterized in that, the head-mounted display device further comprises a pupil detector, and the pupil detector is arranged on the head-mounted support for capturing the position of the user's pupil.