CN211786370U - Head-mounted display - Google Patents

Abstract

The utility model provides a head-mounted display, include: a head fixing device; a support arm connected to the head fixation device; the display device is arranged on the supporting arm; the angle adjusting device is connected with the display device and the supporting arm and can drive the display device to rotate relative to the supporting arm; the displacement adjusting device is used for driving the display device to move; when the position of the display device is adjusted, the angle adjusting device and/or the displacement adjusting device can drive the display device to be far away from or close to the eyes of a user. When a user wants the display device to leave eyes, the display device can be directly driven to move through the angle adjusting device and/or the displacement adjusting device, the adjusting process of the display device is simplified, the display device can be conveniently adjusted relative to the positions of the eyes of the user, and therefore the user can conveniently use the display device.

Description

Head-mounted display

Technical Field

The utility model relates to a wear-type display device technical field especially relates to a wear-type display.

Background

When the existing head-mounted display is worn on the head, a user manually adjusts the display device to align the display device with the eyes of the user. When the display device is not used, the user does not want to use the display device temporarily or the user needs to watch the external environment, the user needs to manually adjust the whole head-mounted display to remove the display device from the eyes of the user, the operation process is complicated, and the use of the user is influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a head-mounted display that simplifies the adjustment process, in order to solve the problem of complicated operation caused by the need to manually adjust the whole head-mounted display.

The above purpose is realized by the following technical scheme:

a head-mounted display, comprising:

a head fixing device;

a support arm connected to the head fixation device;

the display device is arranged on the supporting arm;

the angle adjusting device is connected with the display device and the supporting arm and can drive the display device to rotate relative to the supporting arm; and

the displacement adjusting device is used for driving the display device to move;

when the position of the display device is adjusted, the angle adjusting device and/or the displacement adjusting device can drive the display device to be far away from or close to the eyes of a user.

In one embodiment, the angle adjusting device includes a first rotary power source, and a first rotary mounting seat for mounting the first rotary power source, the first rotary mounting seat is disposed on the supporting arm, and an output end of the first rotary power source is connected to the display device.

In one embodiment, the angle adjusting device comprises a damping rotating member rotatably connecting the display device and the support arm.

In one embodiment, the angle adjusting apparatus further includes a first angle detecting element, and the first angle detecting element is disposed on the display apparatus and configured to detect a rotation angle of the display apparatus.

In one embodiment, the displacement adjusting device comprises a horizontal displacement adjusting mechanism, and the horizontal displacement adjusting mechanism can drive the display device to move along the horizontal direction so as to adjust the displacement of the display device along the horizontal direction.

In one embodiment, the horizontal displacement adjusting mechanism is disposed between the supporting arm and the head fixing device, and the displacement adjusting device can drive the supporting arm and the display device to move.

In one embodiment, the displacement adjusting device includes a linear motion assembly disposed between the support arm and the head fixture, and the linear motion assembly can move the support arm relative to the head fixture.

In one embodiment, the displacement adjusting device further comprises a translation power source, and an output end of the translation power source is connected with the linear motion assembly to drive the support arm to move.

In one embodiment, the displacement adjusting device further comprises a lockable or unlocked locking member, and the locking member is disposed on the head fixing device and used for locking the linear motion assembly to the head fixing device.

In one embodiment, the horizontal displacement adjusting mechanism is disposed between the angle adjusting device and the display device, and the displacement adjusting device can drive the angle adjusting device and the display device to move.

In one embodiment, the displacement adjusting device further comprises a vertical displacement adjusting mechanism, and the vertical displacement adjusting mechanism can drive the display device to move along the vertical direction so as to adjust the displacement of the display device in the vertical direction.

In one embodiment, the vertical displacement adjusting mechanism is disposed between the supporting arm and the head fixing device, and is configured to drive the supporting arm to rotate relative to the head fixing device, so that the supporting arm drives the display device to move up and down.

In one embodiment, the vertical displacement adjusting mechanism includes a second rotary power source, and a second rotary mounting seat for mounting the second rotary power source, and the rotary motion output by the second rotary power source can drive the supporting arm to rotate.

In one embodiment, the vertical displacement adjustment mechanism includes a dampened rotation member rotatably coupling the support arm with the head fixture.

In one embodiment, the vertical displacement adjustment mechanism further comprises a second angle detection member disposed on the support arm for detecting a rotation angle of the support arm.

In one embodiment, the vertical displacement adjusting mechanism is disposed between the supporting arm and the head fixing device, or between the display device and the supporting arm, and the vertical displacement adjusting mechanism can move up and down along a vertical direction to drive the display device to move up and down.

In one embodiment, the head-mounted display further comprises a control device with a controller, wherein the controller is electrically connected with the angle adjusting device, the vertical displacement adjusting mechanism and the horizontal displacement adjusting mechanism and controls the angle adjusting device, the vertical displacement adjusting mechanism and the horizontal displacement adjusting mechanism to perform actions independently or jointly;

the control device also comprises an operating piece which is electrically connected with the controller and used for inputting and controlling execution signals of the angle adjusting device, the vertical displacement adjusting mechanism and the horizontal displacement adjusting mechanism;

the operating piece is arranged on the display device or the head fixing device;

the operating part comprises a touch screen, an operating button, a camera or an inertial sensor.

In one embodiment, the display device further comprises a front camera electrically connected with the controller, and the front camera is used for acquiring images of the environment space around the head-mounted display.

After the technical scheme is adopted, the utility model discloses following technological effect has at least:

when the position of the display device is adjusted, the angle adjusting device outputs rotary motion to drive the display device to rotate relative to the supporting arm, so that the display device turns towards the eyes of the user or away from the eyes of the user; moreover, the displacement adjusting device can drive the display device to move, so that the display device is close to or far away from the eyes of the user; moreover, the angle adjusting device and the displacement adjusting device can independently execute actions or simultaneously execute actions, so that the position of the display device is adjusted. Like this, when the user wants display device to leave eyes, can directly drive display device motion through angle adjusting device and/or displacement adjusting device, effectual solution needs the whole head-mounted display of manual adjustment to lead to complex operation's problem at present, simplifies display device's adjustment process, and the display device of being convenient for is for the regulation of user's eyes position, and then the user of being convenient for uses.

Drawings

Fig. 1 is a perspective view of a head-mounted display according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of the head mounted display shown in FIG. 1 where the display device is connected to the support arm;

FIG. 3 is an enlarged view of a portion of the head mounted display of FIG. 1 showing the connection of the support arm to the head mount;

fig. 4 is a perspective view of the head mounted display upward movement display apparatus shown in fig. 1;

FIG. 5 is a perspective view of the head mounted display of FIG. 1 moving the display device downward;

FIG. 6 is an exploded perspective view of the vertical displacement adjustment mechanism connecting the support arm and the head restraint of the head mounted display of FIG. 1;

FIG. 7 is an exploded view of the vertical displacement adjustment mechanism connecting the support arm and the head restraint of the head mounted display of FIG. 1 from another perspective;

fig. 8 is a simplified schematic diagram of a head mounted display.

Wherein:

100-head mounted display;

110-a head fixation device;

120-a support arm;

130-a display device;

131-a display panel;

132-a lens;

140-angle adjustment means;

141-a first source of rotary power;

142-a first rotary mount;

143-display holder;

150-horizontal displacement adjustment mechanism;

151-translational power source;

152-a linear motion assembly;

153-translational mounts;

160-vertical displacement adjustment mechanism;

161-a second source of rotary power;

162-a second swivel mount;

163-fixed support;

170-moment arm fixing seat.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the head-mounted display of the present invention is further described in detail by embodiments and with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, the present invention provides a head mounted display 100. The head mounted display 100 can realize enhanced display and be applied to various occasions such as games, study, work and the like. The head-mounted display 100 is worn on the head of the user and aligned with the eyes of the user, so that the user can directly view the image data to be viewed through the head-mounted display 100. The utility model discloses a when wear-type display 100 left user's eyes, need not to adjust whole wear-type display 100, only need adjust wear-type display 100 and aim at the part of eyes and can expose eyes, reduce the loaded down with trivial details degree of operation, the user of being convenient for uses.

Referring to fig. 1 to 3, in an embodiment, the head-mounted display 100 includes a head-fixing device 110, a support arm 120, a display device 130, an angle adjustment device 140, and a displacement adjustment device. The support arm 120 is connected to the head restraint 110. The display device 130 is disposed on the support arm 120. The angle adjustment device 140 is connected to the display device 130 and the support arm 120, and can drive the display device 130 to rotate relative to the support arm 120. The displacement adjusting device is used for driving the display device 130 to move. When the position of the display device 130 is adjusted, the angle adjustment device 140 and/or the displacement adjustment device can move the display device 130 away from or close to the eyes of the user.

The head fixing device 110 is a fixing component of the head-mounted display 100, and is used for being worn on the head of the user, so that the head-mounted display 100 can be reliably worn on the head of the user, and the head-mounted display 100 is prevented from being positionally shifted or separated from the head of the user. Moreover, the head-mounted display 100 is disposed on the head-mounted device 110, and various components of the head-mounted display 100 are disposed on the head-mounted device 110 indirectly or directly. Optionally, the head fixing device 110 includes a head ring, and the head ring is sleeved on the head of the user to enable the head-mounted display 100 to be worn. Still optionally, the head fixing device 110 further includes an auxiliary fixing ring disposed at a back brain region of the head for reliably fixing the head-mounted display 100 to prevent the head-mounted display 100 from falling off the head of the user due to a deviation.

The support arm 120 is disposed in an arc shape and located outside the head fixation device 110. Specifically, two ends of the supporting arm 120 are respectively connected to the head fixing device 110, and the middle region of the supporting arm 120 is located outside the head fixing device 110 and has a certain distance from the head fixing device 110, so as to avoid interference between the supporting arm 120 and the head fixing device 110. Optionally, the support arm 120 is a semi-circular moment arm to carry the display device 130. Display device 130 rotationally installs in the middle part region of support arm 120, can guarantee like this that the both ends atress of support arm 120 is balanced, avoids user's head both sides atress uneven, promotes user's use and experiences.

The display device 130 is a display component of the head mounted display 100, and the user's eyes are aligned with the display device 130 to display the image data through the display device 130, thereby achieving the purpose of enhancing the display. Optionally, the display device 130 includes a display panel 131 and two lenses 132 disposed on the display panel 131, respectively corresponding to the left and right eyes of the user. Alternatively, the specific structure of the display device 130 may be any of various devices that can realize a display function.

The display device 130 is rotatably mounted to a middle region of the support arm 120 by an angle adjustment device 140 such that the display device 130 is aligned with or spaced apart from the user's eye, i.e., the angle adjustment device 140 can adjust the inclination of the display device 130 with respect to the user's eye. When the user wears the head mounted display 100, the angle adjustment device 140 may keep the display device 130 parallel to the user's eyes, so that the display device 130 may be well aligned with the user's eyes, and the comfort of the user during use may be improved. Also, when the user does not need to wear the head mounted display 100, the angle adjusting device 140 may tilt the display device 130 with respect to the user's eye to be away from the user's eye.

Moreover, the displacement adjustment device may also cause the display device 130 to translate such that the display device 130 is close to or away from the user's eyes. The displacement adjusting means may move the display device 130 in a horizontal direction and/or a vertical direction, and the display device 130 at any position may be moved to the eyes of the user, or the display device 130 at the eyes of the user may be moved away.

It can be understood that the angle adjustment device 140 and the displacement adjustment device can perform actions separately, for example, the angle adjustment device 140 alone drives the display device 130 to rotate, or the displacement adjustment device alone drives the display device 130 to move; of course, the angle adjustment device 140 and the displacement adjustment device can also perform actions in combination, for example, the angle adjustment device 140 controls the display device 130 to rotate, and simultaneously, the displacement adjustment device can drive the display device 130 to move.

The angle adjustment device 140 is used to adjust the display device 130: when the head mounted display 100 is worn, the head fixing device 110 is worn on the head of the user, so as to ensure that the head mounted display 100 is worn well. Then, the angle adjustment device 140 rotates the display device 130 relative to the support arm 120, so that the display device 130 is turned inward to align and cover the eyes of the user, and the user can use the display device 130 to enhance the display. When the display device 130 is not used, the display device 130 is not wanted to be used for a while, or the external environment needs to be viewed, the angle adjustment device 140 drives the display device 130 to rotate relative to the support arm 120, so that the display device 130 is turned outwards, and at this time, the display device 130 is far away from the eyes of the user, and the user can see the real environment. It should be noted that, in the inside and outside, the relative positional relationship between the display device 130 and the user is taken as a reference, the side of the display device 130 facing the user is the inside, and the side of the display device 130 facing away from the user is the outside.

Adjusting the display device 130 using the displacement adjustment device: when the head mounted display 100 is worn, the head fixing device 110 is worn on the head of the user, so as to ensure that the head mounted display 100 is worn well. Then, the displacement adjusting device drives the display device 130 to move, so that the display device 130 gradually approaches to the eyes of the user to align and cover the eyes of the user, and the user can use the display device 130 to enhance the display. When the display device 130 is not used, the display device 130 is not wanted to be used for a while, or the external environment needs to be watched, the displacement adjusting device drives the display device 130 to move, so that the display device 130 is far away from the eyes of the user, the eyes of the user are not shielded any more, and the user can see the real environment.

The angle adjustment device 140 and the displacement adjustment device cooperate to adjust the display device 130, and during adjustment, the display device 130 can move and rotate relative to the support arm 120, and the adjustment principle is substantially the same as the independent adjustment principle of the angle adjustment device 140 and the displacement adjustment device, which is not described herein again.

The head-mounted display 100 of the above embodiment drives the display device 130 to move through the angle adjusting device 140 and/or the displacement adjusting device, so as to adjust the display device 130, effectively solve the problem of complex operation caused by manually adjusting the whole head-mounted display at present, simplify the adjustment process of the display device 130, facilitate the adjustment of the display device 130 relative to the eye position of the user, and further facilitate the use of the user.

It is understood that the rotation of the display device 130 by the angle adjustment device 140 may be an active adjustment or a passive adjustment. Referring to fig. 1 and 2, in one embodiment, the angle adjustment device 140 actively adjusts the position of the display device 130. In an embodiment, the angle adjustment device 140 includes a first rotation power source 141, a first rotation mounting seat 142 for mounting the first rotation power source 141, the first rotation mounting seat 142 is disposed on the support arm 120, and an output end of the first rotation power source 141 is connected to the display device 130. The first rotary mounting seat 142 plays a bearing role for realizing the mounting of the first rotary power source 141, ensuring that the first rotary power source 141 is reliably mounted on the support arm 120, and avoiding the play, so that the rotary motion output by the first rotary power source 141 is reliable.

Alternatively, the first rotary mounting seat 142 is fixed to the support arm 120 by screwing, snapping, or adhering. Alternatively, the first rotational mount 142 may be a unitary structure with the support arm 120. Of course, in other embodiments of the present invention, the first rotary power source 141 may be directly mounted to the support arm 120. Alternatively, the first rotary power source 141 is fixed to the first rotary mount 142 by a screw connection, a snap connection, or an adhesive. It is understood that the first rotary power source 141 has an installation space and may be at least partially installed in the first rotary installation base 142, and of course, the first rotary installation base 142 may have a flat plate shape and the first rotary power source 141 may be installed on a surface of the first rotary installation base 142.

The output end of the first rotation power source 141 is connected to the display device 130, and when the first rotation power source 141 outputs a rotation motion, the first rotation power source 141 can drive the display device 130 to rotate relative to the supporting arm 120 through the output end, so that the display device 130 turns inward or outward. Alternatively, the first rotary power source 141 includes, but is not limited to, a steering engine, a motor, or other rotary actuator that can output rotary motion. Illustratively, the first rotary power source 141 is a steering engine.

It is understood that the head-mounted display 100 further includes a control device having a controller, and the automatic adjustment of the display device 130 is realized by the controller, and the specific structure of the control device and the adjustment form thereof are mentioned later. The controller is electrically connected to the first rotary power source 141 to control the first rotary power source 141 to operate. When the head mounted display 100 adjusts the position of the display device 130, the controller receives an adjustment signal of the display device 130, and then the controller controls the first rotation power source 141 to move, so that the output end of the first rotation power source 141 rotates and drives the display device 130 to rotate, so that the display device 130 turns inwards or outwards.

In another embodiment, the angle adjustment device 140 passively adjusts the position of the display device 130. In one embodiment, the angle adjustment device 140 includes a damping rotor rotatably coupling the display device 130 and the support arm 120. The display device 130 has a first mounting hole, the support arm 120 has a second mounting hole, and the damping rotating member is rotatably mounted in the first mounting hole and/or the second mounting hole. Thus, when the user manually turns the display device 130 inward or outward, the display device 130 can rotate relative to the supporting arm 120 through the damping rotating member, and the position of the display device 130 can also be adjusted.

After the damping rotating member is adopted, on one hand, under the action of an external force for rotating the display device 130 by a user, the rotating action of the damping rotating member can enable the display device 130 to rotate relative to the supporting arm 120; on the other hand, after the adjustment of the display device 130 is completed, the damping action of the damping rotating member can increase the friction force, so that the display device 130 cannot rotate through the damping rotating member, so that the display device 130 is kept at the adjustment position, and the use by the user is facilitated. Optionally, the damping rotating member includes a rotating shaft and a damping layer sleeved outside the rotating shaft. Of course, in other embodiments of the present invention, the damping rotating member may also be other components having both a rotating function and damping characteristics.

In an embodiment, the angle adjustment apparatus 140 further includes a display fixing base 143 disposed on the display apparatus 130, and the display fixing base 143 is configured to be rotatably connected to the support arm 120. The display fixing seat 143 is used to connect the angle adjustment device 140 and the display device 130, and it can be understood that the display fixing seat 143 can be applied to both the actively adjusted angle adjustment device 140 and the passively adjusted angle adjustment device 140. In the present embodiment, the display fixing base 143 is only applied to the actively adjusting angle adjusting device 140 for illustration. The display device 130 is disposed on the display device 130, the output end of the first rotary power source 141 is connected to the display fixing base 143, and when the first rotary power source 141 outputs a rotary motion, the output end of the first rotary power source 141 can drive the display fixing base 143 and the display device 130 connected thereto to rotate synchronously, so as to adjust the display device 130.

Optionally, the display fixing base 143 is detachably fixed to the display device 130, or the display fixing base 143 and the display device 130 are integrated. Alternatively, the output end of the first rotary power source 141 may be mounted to the display device 130 by a screw connection, a snap connection, an adhesive connection, or other fixed connection. It should be noted that the principle applied to the passive adjustment angle adjustment device 140 is substantially the same as that applied to the active adjustment angle adjustment device 140, and the description thereof is omitted here for brevity.

In one embodiment, the display fixing base 143 is located above or beside the display device 130. This can realize that the display fixing base 143 drives the display device 130 to rotate. Illustratively, the display holder 143 is located directly above the display device 130.

In an embodiment, the angle adjusting apparatus 140 further includes a first angle detecting element disposed on the display apparatus 130 for detecting a rotation angle of the display apparatus 130. The first angle detection part is connected with the controller, and can detect the inclination angle of the display device 130 in real time and feed back the inclination angle to the controller. For the actively adjusting display device 130, the first angle detector, the first rotation power source 141 and the controller are electrically connected. When the angle of the display device 130 detected by the first angle detection component is transmitted to the controller, the controller compares the difference between the current angle of the display device 130 and the preset angle, and if the current angle is equal to the preset angle, the controller controls the first rotating power source 141 to stop driving the display device 130 to rotate; if the current angle is smaller than or greater than the preset angle, the controller controls the first rotation power source 141 to drive the display device 130 to rotate until the current angle is equal to the preset angle. For the passively adjusted display device 130, in the process of adjusting the display device 130, the first angle detector may detect the angle of the display device 130, and when the current angle of the display device 130 is adjusted to a preset angle, the controller may generate a prompt such as a buzzer sound to inform the user that the adjustment is in place. Of course, the user can adjust the angle of the display device 130 at will according to the use requirement, and the first angle detection component can store and record the angle information. Optionally, the first angle detection element is an angle sensor or other element capable of detecting an angle.

In an embodiment, the displacement adjusting device includes a horizontal displacement adjusting mechanism 150, and the horizontal displacement adjusting mechanism 150 can drive the display device to move along the horizontal direction, so as to adjust the displacement of the display device along the horizontal direction. The horizontal displacement adjustment mechanism 150 may cause the display device 130 to translate in a horizontal plane to move the display device 130 closer to or away from the user's eyes.

The display device 130 is adjusted using the horizontal displacement adjustment mechanism 150: when the head mounted display 100 is worn, the head fixing device 110 is worn on the head of the user, so as to ensure that the head mounted display 100 is worn well. Then, the horizontal displacement adjusting mechanism 150 drives the display device 130 to move in the horizontal plane, so that the display device 130 gradually approaches to the eyes of the user along the horizontal direction to align and cover the eyes of the user, and the user can use the display device 130 to enhance the display. When the display device 130 is not used, the display device 130 is not wanted to be used for a while, or the external environment needs to be watched, the horizontal displacement adjusting mechanism 150 drives the display device 130 to move in the horizontal plane, so that the display device 130 is far away from the eyes of the user and does not block the eyes of the user any more, and the user can watch the real environment.

Referring to fig. 1 and 3, in an embodiment, the horizontal displacement adjusting mechanism 150 is disposed between the supporting arm 120 and the head fixing device 110, and the horizontal displacement adjusting mechanism 150 drives the supporting arm 120 and the display device 130 to move. Horizontal displacement adjustment mechanism 150 may enable movement of display device 130 within a horizontal plane to adjust the horizontal distance between display device 130 and the user's eyes. When the horizontal displacement adjusting mechanism 150 adjusts the position of the display device 130, the horizontal displacement adjusting mechanism 150 can drive the supporting arm 120 to move along the horizontal direction, so that the supporting arm 120 drives the display device 130 thereon to move, so that the display device 130 is close to or far away from the eyes of the user in the horizontal direction, and the distance between the display device 130 and the eyes of the user is adjusted.

When the horizontal displacement adjusting mechanism 150 adjusts the display device 130, the horizontal displacement adjusting mechanism 150 can be extended or contracted, so that the distance between the middle region of the supporting arm 120 and the head fixing device 110 is increased or decreased, and the supporting arm 120 drives the display device 130 to move along the horizontal direction, so that the display device 130 is close to or far away from the eyes of the user. Specifically, when the horizontal displacement adjusting mechanism 150 moves the display device 130 away from the eyes of the user, the horizontal displacement adjusting mechanism 150 drives the supporting arm 120 to move towards the side away from the head fixing device 110, and then the supporting arm 120 drives the display device 130 away from the eyes of the user, at this time, the eyes of the user are no longer shielded by the display device 130, and the user can see the external real environment. When the horizontal displacement adjusting mechanism 150 moves the display device 130 to the eyes of the user, the horizontal displacement adjusting mechanism 150 drives the supporting arm 120 to move towards one side close to the head fixing device 110, and then the supporting arm 120 drives the display device 130 to gradually approach the eyes of the user, at this time, the eyes of the user are covered by the display device 130, and the user uses the display device 130 to watch. Moreover, in the process that the horizontal displacement adjusting mechanism 150 drives the display device 130 to move, the distance between the display device 130 and the eyes of the user can be adjusted, so that the distance between the display device 130 and the eyes of the user can be ensured for use, the comfort level of the user during use is improved, and the display device 130 is prevented from being too far away from or too close to the eyes of the user.

Of course, in other embodiments of the present invention, the horizontal displacement adjusting mechanism 150 may also be disposed between the angle adjusting device 140 and the display device 130, and the horizontal displacement adjusting mechanism 150 may drive the angle adjusting device 140 and the display device 130 to move. In this way, the adjustment of the display device 130 can be realized, and the adjustment principle is substantially the same as the adjustment principle of the horizontal displacement adjusting mechanism 150 in the above embodiment, which is not described herein again.

In one embodiment, the horizontal displacement adjustment mechanism 150 includes a linear motion assembly 152, the linear motion assembly 152 is disposed between the support arm 120 and the head restraint 110, and the linear motion assembly 152 drives the support arm 120 to move relative to the head restraint 110. The linear motion assembly 152 is used to achieve linear motion of the support arm 120 in a horizontal plane. Illustratively, the linear motion assembly 152 includes a rotary gear and a linear rack engaged with the rotary gear, and when the rotary gear rotates, the linear rack is driven to output a linear motion. Alternatively, a linear rack is provided to the head fixture 110 and a rotary gear is mounted to the support arm 120. When the support arm 120 moves forward or backward, the rotary gear can move along the linear rack. Still alternatively, a linear rack is provided to the support arm 120 and a rotary gear is provided to the head fixation device 110. When the support arm 120 moves forward or backward, the linear rack moves to drive the rotary gear to rotate. Of course, in other embodiments of the present invention, the linear motion assembly 152 may also be other components capable of outputting linear motion, such as a linear motor, a linear cylinder, etc.

It is understood that the horizontal displacement adjusting mechanism 150 can move the display device 130 actively or passively. In one embodiment, the horizontal displacement adjustment mechanism 150 actively adjusts the display device 130. In one embodiment, the horizontal displacement adjusting mechanism 150 further comprises a translational power source 151, and an output end of the translational power source 151 is connected to the linear motion assembly 152 to drive the linear motion assembly 152 to move the support arm 120. Translation power supply 151 is connected with the rotary gear, exemplarily, translation power supply 151 sets up in head fixing device 110, and the straight line rack sets up and connects the rotary gear in translation power supply 151's output, and translation power supply 151 output rotary motion can drive the rotary gear and rotate, and then the rotary gear is linear motion through the linear rack of meshing relation drive, and then the straight line rack drives support arm 120 and is linear motion.

Optionally, the horizontal displacement adjusting mechanism 150 further comprises a translation mounting seat 153, and the translation mounting seat 153 is disposed on the head fixture 110 and is used for mounting the translation power source 151. Alternatively, the translation mount 153 is secured to the head restraint 110 by a threaded connection, a snap-fit connection, or an adhesive. Alternatively, the translational mount 153 may also be a unitary structure with the head restraint 110. Of course, in other embodiments of the present invention, the translational power source 151 may also be directly mounted to the head fixation device 110. Alternatively, the translational power source 151 includes, but is not limited to, a steering engine, a motor, or other rotary actuator that can output rotary motion. Illustratively, the translational power source 151 is a steering engine.

The controller is electrically connected to the translation power source 151 to control the translation power source 151 to operate. When the head mounted display 100 adjusts the position of the display device 130, the controller receives an adjustment signal of the display device 130, and then the controller controls the translational power source 151 to move, the output end of the translational power source 151 rotates, and the support arm 120 is driven to move in the horizontal plane through the cooperation of the rotary gear and the linear rack, so that the support arm 120 drives the display device 130 to be close to or far away from the eyes of the user, and the distance between the display device 130 and the eyes of the user is moderate.

In another embodiment, the horizontal displacement adjustment mechanism 150 is actuated to adjust the position of the display device 130. In a specific embodiment, the user can directly and manually adjust the position of the support arm 120, i.e., move the support arm 120 forward or backward, so that the support arm 120 can rotate along the rotation gear. Further, the method is carried out. The horizontal displacement adjustment mechanism 150 further includes a lockable or unlocked lock provided to the head fixture 110 for locking the linear motion assembly 152 to the head fixture 110. When the locking piece is locked, the locking piece moves into a position between the linear rack and the rotating gear, the position between the linear rack and the rotating gear is locked, and the linear rack cannot move along the rotating gear; when the locking piece is unlocked, the locking piece moves out of the position between the linear rack and the rotating gear, and the linear rack can move along the rotating gear. Optionally, the locking member is a locking post or other lockable component.

Optionally, when the horizontal displacement adjusting mechanism 150 passively adjusts the position of the display device 130, the linear motion assembly 152 may also be a resistance sliding rail slider structure, the support arm 120 may move relative to the head fixing device 110 through the cooperation of the sliding rail slider under the action of an external force, and after the external force is removed, the linear motion assembly 152 may be locked by the resistance between the sliding rail and the slider, and then the support arm 120 is locked, so that the support arm 120 remains still.

In one embodiment, the number of the horizontal displacement adjusting mechanisms 150 is two, and the two horizontal displacement adjusting mechanisms 150 are respectively disposed at two ends of the supporting arm 120 and connected to the head fixing device 110, alternatively, both horizontal displacement adjusting mechanisms 150 may be actively driven by using the translation power source 151; one of the two horizontal displacement adjusting mechanisms 150 can be actively driven by the translation power source 151, and the other can be passively driven; it is also possible to employ passive drive for both horizontal displacement adjustment mechanisms 150.

In one embodiment, the displacement adjustment device further comprises a vertical displacement adjustment mechanism 160. The vertical displacement adjustment mechanism 160 can drive the display device 130 to move in the vertical direction, so as to adjust the displacement of the display device 130 in the vertical direction. Vertical displacement adjustment mechanism 160 may cause display device 130 to translate in a vertical plane to bring display device 130 closer to or farther away from the user's eyes.

The display device 130 is adjusted using the vertical displacement adjustment mechanism 160: when the head mounted display 100 is worn, the head fixing device 110 is worn on the head of the user, so as to ensure that the head mounted display 100 is worn well. Then, the vertical displacement adjustment mechanism 160 drives the display device 130 to ascend and descend in the vertical plane, so that the display device 130 gradually approaches the eyes of the user along the vertical direction to align and cover the eyes of the user, and the user can perform enhanced display using the display device 130. When the display device 130 is not used, the display device 130 is not desired to be used temporarily, or the external environment needs to be watched, the vertical displacement adjusting mechanism 160 drives the display device 130 to ascend and descend in the vertical plane, so that the display device 130 is far away from the eyes of the user and does not shield the eyes of the user any more, and the user can watch the real environment.

Referring to fig. 1, 4 to 7, in an embodiment, the vertical displacement adjusting mechanism 160 is disposed between the supporting arm 120 and the head fixing device 110, and is used for driving the supporting arm 120 to rotate relative to the head fixing device 110, so as to adjust the vertical displacement of the display device 130. That is, in the present embodiment, the vertical displacement adjusting mechanism 160 outputs a rotational motion to drive the display device 130 to ascend and descend through the supporting arm 120. The vertical displacement adjustment mechanism 160 rotatably connects the support arm 120 and the head restraint 110, and the vertical displacement adjustment mechanism 160 can drive the support arm 120 to rotate relative to the head restraint 110. Because the end of the supporting arm 120 is rotatably connected to the head fixing device 110, the display device 130 mounted on the supporting arm 120 can rotate around the head fixing device 110, and the display device 130 is always kept in a vertical state under the action of the self-gravity of the display device 130. That is, the display device 130 can be driven to move up and down by the cooperation of the vertical displacement adjusting mechanism 160 and the supporting arm 120, so that the display device 130 can shield or keep away from the eyes of the user.

Specifically, when the head mounted display 100 is worn, the head fixing device 110 is worn on the head of the user, so as to ensure that the head mounted display 100 is worn well. Then, the vertical displacement adjusting mechanism 160 drives the supporting arm 120 to rotate relative to the head fixing device 110, the position of the supporting arm 120 where the display device 130 is installed moves downward, and then the supporting arm 120 drives the display device 130 to move downward, the display device 130 can be aligned with and cover the eyes of the user, and the user can use the display device 130 to perform enhanced display. When the display device 130 is not used, the display device 130 is not desired to be used temporarily, or the user needs to view the external environment, the vertical displacement adjustment mechanism 160 drives the support arm 120 to rotate relative to the head fixing device 110, the position of the support arm 120 where the display device 130 is installed moves upward, and then the support arm 120 drives the display device 130 to move upward, at this time, the display device 130 is far away from the eyes of the user, and the user can view the real environment. Of course, the position of the support arm 120 where the display device 130 is mounted may also be moved further downward so that the display device 130 is out of the eyes of the user.

It should be noted that the vertical displacement adjusting mechanism 160, the angle adjusting device 140, and the horizontal displacement adjusting mechanism 150 may perform actions respectively, for example, the vertical displacement adjusting mechanism 160 alone drives the display device 130 to move in the vertical direction, the angle adjusting device 140 alone drives the display device 130 to rotate, or the horizontal displacement adjusting mechanism 150 alone drives the display device 130 to move in the horizontal plane; of course, at least two of the vertical displacement adjustment mechanism 160, the angle adjustment device 140, and the horizontal displacement adjustment mechanism 150 may also perform actions in combination.

The vertical displacement adjusting mechanism 160, the angle adjusting device 140 and the horizontal displacement adjusting mechanism 150 cooperate to adjust the display device 130, and during adjustment, the display device 130 can move in the horizontal plane, rotate relative to the supporting arm 120, and move up and down, and the adjustment principle is substantially the same as the independent adjustment principle of the vertical displacement adjusting mechanism 160, the angle adjusting device 140 and the horizontal displacement adjusting mechanism 150, which is not repeated herein.

Of course, in another embodiment of the present invention, the vertical displacement adjusting mechanism 160 may also be disposed between the supporting arm 120 and the head fixing device 110, or between the display device 130 and the supporting arm 120, and the vertical displacement adjusting mechanism 160 may move vertically to drive the display device 130 to move up and down. That is, the vertical displacement adjustment mechanism 160 is a lifting structure that can implement a lifting motion, and illustratively, the lifting structure may be a vertical ball screw structure, a lifting motor structure, or the like. It is worth explaining, the utility model discloses enumerate above-mentioned two structures that can realize elevating movement and explain, and the structure quantity that can realize elevating movement is many, can not enumerate one by one here, and other structures that can realize elevating movement are all in the utility model discloses a protection scope.

The utility model discloses in only drive support arm 120 with vertical displacement adjustment mechanism 160 and rotate and realize reciprocating of display device 130 and realize vertical displacement and adjust.

It is understood that the vertical displacement adjusting mechanism 160 may drive the display device 130 to rotate in an active manner or a passive manner. In one embodiment, the vertical displacement adjustment mechanism 160 actively adjusts the position of the display device 130. In an embodiment, the vertical displacement adjusting mechanism 160 includes a second rotation power source 161, a second rotation mounting seat 162 for mounting the second rotation power source 161, the second rotation mounting seat 162 is disposed on the supporting arm 120, and an output end of the second rotation power source 161 is connected to the head fixing device 110. The second rotary mounting seat 162 plays a bearing role for mounting the second rotary power source 161, ensuring that the second rotary power source 161 is reliably mounted on the support arm 120, and avoiding play, so that the rotary motion output by the second rotary power source 161 is reliable.

Because the head fixing device 110 is a fixed part, after the output end of the second rotary power source 161 is connected to the head fixing device 110, a reaction force is generated to drive the second rotary power source 161 to drive the supporting arm 120 to rotate, so that the supporting arm 120 drives the display device 130 to move up and down. Of course, in other embodiments of the present invention, the second rotary power source 161 may be disposed on the head fixing device 110, the output end of the second rotary power source 161 is connected to the supporting arm 120, and the second rotary power source 161 outputs the rotary motion to directly drive the supporting arm 120 to rotate.

Alternatively, the second rotary mounting block 162 is fixed to the support arm 120 by screwing, snapping, or adhering. Optionally, the head mounted display 100 further includes a moment arm fixing base 170, the moment arm fixing base 170 is disposed on the supporting arm 120, and the moment arm fixing base 170 is used for fixedly connecting to the second rotation mounting base 162. Specifically, the support arm 120 has a through hole through which an extended end of the second rotation power source 161 is mounted to the head fixture 110, and the second rotation power source 161 is mounted to the arm fixing base 170 through the second rotation mounting base 162. Alternatively, the second rotational mount 162 may be a unitary structure with the support arm 120. Of course, in other embodiments of the present invention, the second rotary power source 161 may also be directly mounted to the support arm 120.

Alternatively, the second rotary power source 161 is fixed to the second rotary mount 162 by a screw connection, a snap connection, or an adhesive. It is understood that the second rotary power source 161 has a mounting space and may be at least partially mounted in the second rotary mounting base 162, and of course, the second rotary mounting base 162 may have a flat plate shape and the second rotary power source 161 may be mounted on a surface of the second rotary mounting base 162. Optionally, the vertical displacement adjusting mechanism 160 further includes a fixing support 163, the fixing support 163 is disposed on the head fixture 110, and the fixing support 163 is used for fixedly mounting the output end of the second rotary power source 161, so that the second rotary power source 161 is rotated by the reaction force. Of course, the output of the second rotary power source 161 may also be directly fixed to the head restraint 110.

The output end of the second rotation power source 161 is connected to the head fixing device 110, and when the second rotation power source 161 outputs rotation motion, the reaction force of the output end can make the second rotation power source 161 drive the supporting arm 120 to rotate through the second rotation mounting base 162 and the arm fixing base 170, so that the supporting arm 120 drives the display device 130 to move up or down. Alternatively, the second rotary power source 161 includes, but is not limited to, a steering engine, a motor, or other rotary actuator that can output rotary motion. Illustratively, the second rotary power source 161 is a steering engine.

The controller is electrically connected to the second rotary power source 161 to control the operation of the second rotary power source 161. When the head mounted display 100 adjusts the position of the display device 130, the controller receives an adjustment signal of the display device 130, and then the controller controls the second rotation power source 161 to move, so that the output end of the second rotation power source 161 rotates and drives the supporting arm 120 to rotate, and the supporting arm 120 drives the display device 130 to move upward or downward.

In another embodiment, the vertical displacement adjustment structure 160 passively adjusts the position of the display device 130. In one embodiment, the vertical displacement adjustment mechanism 160 includes a dampened rotation member rotatably coupling the support arm 120 with the head restraint 110. The support arm 120 has a third mounting hole, the head fixture 110 has a fourth mounting hole, and the damping rotating member is rotatably mounted in the third mounting hole and/or the fourth mounting hole. Thus, when the user manually pushes the supporting arm 120 upwards or downwards, the supporting arm 120 can rotate relative to the head fixing device 110 through the damping rotating component, and then the supporting arm 120 drives the display device 130 to move up and down, so as to adjust the position of the display device 130.

With the damping rotator, on one hand, under the action of an external force applied by a user to rotate the supporting arm 120, the supporting arm 120 can rotate relative to the head fixing device 110 due to the rotation of the damping rotator; on the other hand, after the adjustment of the display device 130 is completed, the damping action of the damping rotating member can increase the friction force, so that the supporting arm 120 cannot rotate through the damping rotating member, so that the display device 130 and the supporting arm 120 are kept at the adjustment position, and the use by a user is facilitated. Optionally, the damping rotating member includes a rotating shaft and a damping layer sleeved outside the rotating shaft. Of course, in other embodiments of the present invention, the damping rotating member may also be other components having both a rotating function and damping characteristics.

In an embodiment, the vertical displacement adjusting mechanism 160 further includes a second angle detecting element disposed on the supporting arm 120 for detecting the rotation angle of the supporting arm 120. The second angle detection unit is connected to the controller, and can detect the tilt angle of the support arm 120 in real time and feed back the tilt angle to the controller. For the actively adjusted support arm 120, the second angle detector, the second rotational power source 161 and the controller are electrically connected. When the angle of the support arm 120 detected by the second angle detector is transmitted to the controller, the controller compares the difference between the current angle of the support arm 120 and the preset angle, and if the current angle is equal to the preset angle, the controller controls the second rotary power source 161 to stop driving the support arm 120 to rotate; if the current angle is smaller than or greater than the preset angle, the controller controls the second rotation power source 161 to drive the support arm 120 to rotate until the current angle is equal to the preset angle. For the passively adjusted support arm 120, the second angle detector can detect the angle of the support arm 120 when the user adjusts the support arm 120, and when the current angle of the support arm 120 is adjusted to a preset angle, the controller will generate a prompt such as a buzzer sound to inform the user that the adjustment is in place. Of course, the user can adjust the angle of the supporting arm 120 at will according to the use requirement, and the second angle detection unit can store and record the angle information. Optionally, the second angle detection element is an angle sensor or other element capable of detecting an angle.

It is worth to say that, there are many kinds of realization modes about the structure of foretell angle adjusting device 140, vertical displacement adjustment mechanism 160, horizontal displacement adjustment mechanism 150, the utility model discloses in only explain a concrete structure of angle adjusting device 140, vertical displacement adjustment mechanism 160, horizontal displacement adjustment mechanism 150, and all the other structures that can realize angle adjusting device 140, vertical displacement adjustment mechanism 160, horizontal displacement adjustment mechanism 150 function all should be in the protection scope of the utility model.

In one embodiment, the head mounted display 100 further includes a control device having a controller electrically connected to the angle adjustment device 140, the vertical displacement adjustment mechanism 160, and the horizontal displacement adjustment mechanism 150, and controlling the angle adjustment device 140, the vertical displacement adjustment mechanism 160, and the horizontal displacement adjustment mechanism 150 to perform actions individually or in combination. The controller is electrically connected to the first rotary power source 141 of the angle adjusting device 140, to the second rotary power source 161 of the vertical displacement adjusting mechanism 160, and to the translational power source 151 of the horizontal displacement adjusting mechanism 150. In this way, the head-mounted display 100 can automatically adjust the position of the display device 130 through the controller, thereby facilitating the user. Optionally, the controller is a CPU or other control element that effects control.

It is worth noting that the controller can accurately control the up-down translation, the front-back translation and the rotation of the display device 130 in the space. Referring to fig. 1 and 8, when up-and-down translation is required, the rotation angle a of the second rotation power source 161 is kept equal to the rotation angle B of the first rotation power source 141, or a + B + a fixed value (the fixed value depends on the angle worn by the user's head ring) is kept, so that the display device 130 is ensured to be parallel to the user's face in real time. Where angle a is the angle between the vertical direction of the user's face and the support arm 120, and angle B is the angle between the support arm 120 and the display device 130. For most users, the angle when the head fixing device 110 is worn is fixed, so the angle between the vertical direction of the face of the user and the head fixing device 110 can be found by calibration in advance, and the difference between the angle a and the angle B can be calculated. The distance L of the front-back translation of the display device 130 is determined by the distance L1 of the movement of the translation power source 151 and the projection length of the second rotation power source 161 in the horizontal direction after rotation, and the translation displacement L is equal to L1+ L2 × cos (a), where L2 is the length of the support arm 120. The distance between the display device 130 and the user's face may also change during the up-down translation and rotation, and the front-back translation is required to ensure the distance is consistent. The rotation of the display device 130 may be directly achieved by changing the rotation angle B of the first rotation power source 141.

In one embodiment, the control device further includes an operating member electrically connected to the controller for inputting an execution signal for controlling the angle adjusting device 140, the vertical displacement adjusting mechanism 160, and the horizontal displacement adjusting mechanism 150. The operating member is an input control device for position adjustment of the display device 130. When the operation member is operated by a user, the operation member may generate corresponding adjustment information to the controller, and the controller controls one or more of the first rotary power source 141, the second rotary power source 161, the translational power source 151, and the like to move according to the adjustment information. This may enable automatic adjustment of the display device 130 without requiring an operator to manually adjust the support arm 120 or the display device 130, which may facilitate user usage and improve the level of intelligence of the head mounted display 100.

In one embodiment, the display device 130 further comprises a front camera electrically connected to the controller, and the front camera is used for acquiring an image of the surrounding space around the head-mounted display and transmitting the image to the controller. The controller may process the image such that the image of the surrounding space can be displayed through the lens 132 of the display device 130, so that the user can view the surrounding space through the head mounted display 130 to achieve fusion with the real scene, and the user can use the image conveniently.

In one embodiment, the operation element is disposed on the display device 130 or the head fixing device 110. In principle, the position where the operation member is provided in the head mounted display 100 is not limited as long as the operation by the operator can be facilitated. Alternatively, the operation member is provided to the display device 130. Further, the operation member may be located on a side surface of the display device 130 or a front surface facing away from the user, or the like. Optionally, the operator is provided to the support arm 120. Optionally, the operation member is disposed on the head fixing device 110 and located at a side of the head fixing device 110.

In one embodiment, the operating element includes a touch screen, an operating button, a camera, an inertial sensor, or other components capable of implementing input control. When the operation member is a touch screen, after the controller enters a mode of adjusting the display device 130, the controller controls the up-and-down displacement of the display by sliding up and down on the touch screen, controls the front-and-back displacement of the display device 130 by sliding front and back on the touch screen, and controls the rotation of the display device 130 by circling on the touch screen. The control mode of the operating part is not limited to a touch screen, and the operating part can also be operating keys, wherein a plurality of operating keys move corresponding to different degrees of freedom, or gesture recognition through a camera is used for controlling, and different gestures correspond to different movements. Of course, the operating member may also be an inertial sensor that can detect the head movement of the user to control the displacement adjustment of the display device 130. For example, after the adjustment mode is turned on, the user may move the display device 130 downward when the user's head is tilted forward, may move the display device 130 upward when the user's head is tilted backward, and so on. Illustratively, the inertial sensor may be an imu sensor.

The technical features of the embodiments described above can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (18)

1. A head-mounted display, comprising:

a head fixing device;

a support arm connected to the head fixation device;

the display device is arranged on the supporting arm;

the angle adjusting device is connected with the display device and the supporting arm and can drive the display device to rotate relative to the supporting arm; and

the displacement adjusting device is used for driving the display device to move;

when the position of the display device is adjusted, the angle adjusting device and/or the displacement adjusting device can drive the display device to be far away from or close to the eyes of a user.

2. The head-mounted display according to claim 1, wherein the angle adjustment device comprises a first rotation power source, and a first rotation mounting seat for mounting the first rotation power source, the first rotation mounting seat is disposed on the supporting arm, and an output end of the first rotation power source is connected to the display device.

3. The head-mounted display of claim 1, wherein the angle adjustment device comprises a damping rotator rotatably coupling the display device and the support arm.

4. The head-mounted display according to claim 2 or 3, wherein the angle adjusting device further comprises a first angle detecting element, and the first angle detecting element is disposed on the display device and is configured to detect a rotation angle of the display device.

5. The head-mounted display of claim 1, wherein the displacement adjustment device comprises a horizontal displacement adjustment mechanism, and the horizontal displacement adjustment mechanism can move the display device in the horizontal direction to adjust the displacement of the display device in the horizontal direction.

6. The head-mounted display of claim 5, wherein the horizontal displacement adjusting mechanism is disposed between the supporting arm and the head fixing device, and the displacement adjusting device drives the supporting arm and the display device to move.

7. The head-mounted display of claim 6, wherein the displacement adjustment device comprises a linear motion component, the linear motion component is disposed between the supporting arm and the head fixing device, and the linear motion component can move the supporting arm relative to the head fixing device.

8. The head-mounted display of claim 7, wherein the displacement adjusting device further comprises a translational power source, and an output end of the translational power source is connected to the linear motion assembly to drive the linear motion assembly to move the supporting arm.

9. The head-mounted display of claim 7, wherein the displacement adjusting device further comprises a lockable or unlocked lock, the lock being disposed on the head fixing device for locking the linear motion assembly to the head fixing device.

10. The head-mounted display of claim 5, wherein the horizontal displacement adjusting mechanism is disposed between the angle adjusting device and the display device, and the displacement adjusting device drives the angle adjusting device and the display device to move.

11. The head-mounted display of claim 5, wherein the displacement adjustment device further comprises a vertical displacement adjustment mechanism, and the vertical displacement adjustment mechanism can move the display device in a vertical direction to adjust the displacement of the display device in the vertical direction.

12. The head-mounted display of claim 11, wherein the vertical displacement adjusting mechanism is disposed between the supporting arm and the head fixing device for driving the supporting arm to rotate relative to the head fixing device, so that the supporting arm drives the display device to move up and down.

13. The head-mounted display of claim 12, wherein the vertical displacement adjustment mechanism comprises a second rotary power source, a second rotary mount for mounting the second rotary power source, and the rotary motion output by the second rotary power source can rotate the support arm.

14. The head mounted display of claim 12, wherein the vertical displacement adjustment mechanism comprises a dampened rotation member rotatably coupling the support arm with the head fixture.

15. The head-mounted display of any one of claims 12 to 14, wherein the vertical displacement adjustment mechanism further comprises a second angle detector disposed on the support arm for detecting a rotation angle of the support arm.

16. The head-mounted display according to claim 11, wherein the vertical displacement adjusting mechanism is disposed between the supporting arm and the head fixing device or between the display device and the supporting arm, and the vertical displacement adjusting mechanism can move up and down along a vertical direction to move the display device up and down.

17. The head-mounted display according to claim 11, further comprising a controller electrically connected to the angle adjusting device, the vertical displacement adjusting mechanism and the horizontal displacement adjusting mechanism, and controlling the angle adjusting device, the vertical displacement adjusting mechanism and the horizontal displacement adjusting mechanism to perform actions individually or jointly;

the control device also comprises an operating piece which is electrically connected with the controller and used for inputting and controlling execution signals of the angle adjusting device, the vertical displacement adjusting mechanism and the horizontal displacement adjusting mechanism;

the operating piece is arranged on the display device or the head fixing device;

the operating part comprises a touch screen, an operating button, a camera or an inertial sensor.

18. The head-mounted display of claim 17, wherein the display device further comprises a front camera electrically connected to the controller, the front camera being configured to capture an image of an environmental space surrounding the head-mounted display.

Images