Head-mounted display device

Abstract

The utility model belongs to the technical field of medical instruments, and provides head-mounted display equipment which comprises a head ring module, a rotating shaft, a display module and a locking assembly, the head ring module defines a wearing space for accommodating the head of a wearer, the rotating shaft is mounted on the head ring module, and the display module is rotatably mounted on the outer side of the head ring module through the rotating shaft; the locking assembly comprises a first locking part arranged on the head ring module and a second locking part arranged on the display module, the display module can rotate relative to the head ring module by separating the first locking part from the second locking part, and a wearer can turn the display module to a position where sight is not blocked so as to directly observe the field environment. By combining the first locking part and the second locking part, the display module and the head ring module are relatively fixed, and a wearer can clearly and completely observe an image displayed by the display module.

Description

Technical Field

[0001] The present application relates to the field of medical device technology, and in particular to a head-mounted display device. Background Art

[0002] Augmented Reality (AR) is a technology that combines real scenes with virtual images. Augmented reality display technology has a wide range of applications in the medical field. Doctors can obtain real-time virtual information such as surgical navigation and guidance by wearing a head-mounted display device based on augmented reality technology, and can also obtain on-site environmental information of the surgery. In the related art, a head-mounted display device based on augmented reality technology usually includes a display module and a headband module. The display module is used to display images so that the wearer can obtain virtual information and on-site environmental information at the same time. The headband module is used for the wearer to wear. In some cases, since the wearer needs to flip the display module to a position that does not block the line of sight so as to directly observe the on-site environment with the naked eye, there are some head-mounted display devices whose display modules can be flipped relative to their headband modules. However, in the process of using the above-mentioned head-mounted display device, the image observed by the wearer is prone to shaking or drifting. Utility Model Content

[0003] The embodiment of the present application provides a head-mounted display device to solve the technical problem in the prior art that a virtual image observed by a wearer when wearing the head-mounted display device is prone to shaking or drifting.

[0004] To achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide a head-mounted display device, including:

[0005] A headband module, which is arranged to form a wearing space for accommodating the head of the wearer;

[0006] A rotating shaft, mounted on the head ring module;

[0007] A display module is rotatably mounted on the outer side of the headband module via the rotating shaft;

[0008] The locking assembly includes a first locking portion and a second locking portion, wherein the first locking portion is arranged on the headband module, and the second locking portion is arranged on the display module, wherein the display module and the headband module can be relatively rotated by separating the first locking portion and the second locking portion; or the display module and the headband module can be relatively fixed by combining the first locking portion and the second locking portion.

[0009] In some embodiments, the first locking portion includes a first magnetic member, the second locking portion includes a second magnetic member, and the first magnetic member and the second magnetic member are combined by magnetic attraction.

[0010] In some embodiments, the second locking portion includes a first locking piece, and the first locking portion includes a first elastic piece, wherein the first locking piece can compress the first elastic piece when the display module is flipped, so that the second locking portion is buckled into the side of the first locking portion close to the rotating shaft from the side of the first locking portion away from the rotating shaft when the display module is flipped toward the direction close to the headband module, and the second locking portion is moved from the side of the first locking portion close to the rotating shaft to the side of the first locking portion away from the rotating shaft when the display module is flipped toward the direction away from the headband module.

[0011] In some embodiments, the first locking portion includes two second locking pieces and two second elastic pieces, the two second locking pieces can be closer to or farther away from each other, and the second elastic piece is used to provide elastic force to the second locking pieces so that the two second locking pieces are closer to each other; the second locking portion includes a first boss that is snap-fitted with the second locking pieces, the first boss has a first connecting end and a first free end that are oppositely arranged, and the first connecting end is connected to the display module.

[0012] In some embodiments, the first locking portion includes two elastic sheets arranged opposite to each other; the second locking portion includes a second boss engaged with the elastic sheet, the second boss has a second connecting end and a second free end arranged opposite to each other, and the second connecting end is connected to the display module.

[0013] In some embodiments, the second locking portion includes a first open groove, and the first locking portion includes a third elastic member, wherein when the display module is flipped toward the direction close to the headband module, the wall surface of the first open groove compresses the third elastic member so that the third elastic member is snapped into the first open groove.

[0014] In some embodiments, the display module is provided with a second open groove interconnected with the first open groove, and the head-mounted display device also includes an unlocking member, which is arranged in the second open groove and is configured to compress the third elastic member when receiving external pressure so that the third elastic member exits the first open groove.

[0015] In some embodiments, the head-mounted display device also includes a first controller and an interaction module. The first controller is electrically connected to the interaction module and the third elastic member, respectively, and is configured to control the extension and retraction of the third elastic member after receiving interaction information collected by the interaction module, so that the third elastic member is engaged in the first open slot or withdrawn from the first open slot.

[0016] In some embodiments, the head-mounted display device also includes a fourth elastic member, which is arranged between the mounting member and the headband module, and is used to provide elastic force to the display module when the first locking portion and the second locking portion switch from a mutually locked state to a mutually separated state, so as to flip the display module at a predetermined angle in a direction away from the headband module.

[0017] In some embodiments, the head-mounted display device also includes a shooting module and a second controller, the shooting module is used to shoot the scene environment to form scene environment information, the second controller is configured to receive the scene environment information and fuse the scene environment information with virtual information to form a virtual-reality fusion image, and the display module is used to display the virtual-reality fusion image to the wearer.

[0018] The head-mounted display device provided by the present application is provided with a locking assembly including a first locking part and a second locking part, the first locking part is provided on the headband module, the second locking part is provided on the display module, and the first locking part and the second locking part are provided to be in a mutually locked state or a mutually separated state. When the first locking part and the second locking part are in a mutually separated state, the display module can be flipped relative to the headband module, so that the wearer can flip the display module to a position that does not block the field of view when necessary, so as to directly observe the scene environment. On this basis, the first locking part and the second locking part can also be in a mutually locked state. When the two are in a mutually locked state, the locking assembly can fix the headband module and the display module to prevent the display module from shaking relative to the headband module, thereby minimizing the shaking or drifting of the image, and can also prevent the pupil distance and the field of view angle of the wearer from changing after wearing the head-mounted display device, so that the wearer can fully and clearly observe the image displayed by the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 A schematic diagram of a structure of a wearer wearing a head-mounted display device provided in some embodiments of the present application;

[0021] Figure 2 A schematic diagram of a partial structure of a head mounted display device provided in some embodiments of the present application;

[0022] Figure 3A schematic diagram of a partial structure of a head mounted display device provided in some other embodiments of the present application;

[0023] Figure 4 A schematic diagram of a partial structure of a head mounted display device provided in some further embodiments of the present application;

[0024] Figure 5 A schematic diagram of a partial structure of a head mounted display device provided in some embodiments of the present application;

[0025] Figure 6 for Figure 5 A schematic diagram of the exploded structure of the head mounted display device shown;

[0026] Figure 7 for Figure 5 A schematic diagram of the structure of a locking assembly of a head mounted display device, a partial structure of a headband module, and a partial structure of a display module;

[0027] Figure 8 for Figure 5 A schematic structural diagram of a second locking member and a second elastic member of a head mounted display device shown;

[0028] Fig. 9 A schematic diagram of a partial structure of a head mounted display device provided in some other embodiments of the present application;

[0029] Fig.10 for Fig. 9 A schematic diagram of the structure of a locking assembly of a head mounted display device, a partial structure of a headband module, and a partial structure of a display module;

[0030] Fig.11 A schematic diagram of the structure of a head mounted display device provided in some further embodiments of the present application;

[0031] Fig.12 for Fig.11 A schematic diagram of the exploded structure of the head mounted display device shown;

[0032] Fig.13 for Fig.11 The structure diagram of the locking component of the head mounted display device, the local structure of the headband module and the local structure of the display module is shown in FIG. Figure 1 ;

[0033] Fig.14 for Fig.11 The structure diagram of the locking component of the head mounted display device, the local structure of the headband module and the local structure of the display module is shown in FIG. Figure 2 ;

[0034] Fig.15 for Fig.11The structure diagram of the locking component of the head mounted display device, the local structure of the headband module and the local structure of the display module is shown in FIG. Figure 3 ;

[0035] Fig.16 A schematic diagram of the structure of a display, a projection optical device and an optical coupler of a head mounted display device provided in some embodiments of the present application;

[0036] Fig.17 A module schematic diagram of a second controller, a shooting module and a display module of a head-mounted display device provided in some embodiments of the present application.

[0037] Among them, the reference numerals in the figure are:

[0038] 100-headband module; 110-front base; 120-wearing piece; 130-rear base; 101-first mounting slot; 102-third mounting slot; 103-plugging slot; 104-step slot; 105-fourth mounting slot;

[0039] 200-display module; 210-mounting member; 211-second mounting slot; 220-display; 230-projection optical device; 240-optical coupler;

[0040] 300-locking assembly; 310-first locking portion; 311-first magnetic member; 312-first elastic member; 313-second locking member; 314-second elastic member; 315-spring; 316-third elastic member; 320-second locking portion; 321-second magnetic member; 322-first locking member; 323-first boss; 3231-first connecting end; 3232-first free end; 324-second boss; 3241-second connecting end; 3242-second free end; 325-first open slot; 326-second open slot; 330-unlocking member;

[0041] 400-first controller;

[0042] 500-interaction module;

[0043] 600-shooting module;

[0044] 700 - second controller;

[0045] 800 - Goggles;

[0046] 900-Adjustment module. DETAILED DESCRIPTION

[0047] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0048] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0050] Reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, when the phrases "in one embodiment" or "in some embodiments" appear in various places throughout the specification, not all references are to the same embodiment. Furthermore, in one or more embodiments, the particular features, structures, or characteristics may be combined in any suitable manner.

[0051] Augmented Reality (AR) is a technology that combines real scenes with virtual images. Augmented reality display technology has a wide range of applications in the medical field. Doctors can obtain real-time virtual information such as surgical navigation and guidance by wearing a head-mounted display device based on augmented reality technology, and can also obtain on-site environmental information of the surgery. In the related art, a head-mounted display device based on augmented reality technology usually includes a display module and a headband module. The display module is used to display images so that the wearer can obtain virtual information and on-site environmental information at the same time. The headband module is used for the wearer to wear. In some cases, since the wearer needs to flip the display module to a position that does not block the line of sight so as to directly observe the on-site environment with the naked eye, there are some head-mounted display devices whose display modules can be flipped relative to their headband modules. However, in the process of using the above-mentioned head-mounted display device, the image observed by the wearer is prone to shaking or drifting.

[0052] In order to solve the above problems, the present application embodiment provides a head mounted display device, see Figures 1 to 3 The head mounted display device provided by the embodiment of the present application is now described. The head mounted display device comprises a head ring module 100, a rotating shaft (not shown in the figure, the same below), a display module 200 and a locking assembly 300. The head ring module 100 is arranged to form a wearing space for accommodating the wearer's head; the rotating shaft is mounted on the head ring module 100, and the display module 200 is rotatably mounted on the outside of the head ring module 100 through the rotating shaft; please refer to Figure 3 The locking assembly 300 includes a first locking portion 310 and a second locking portion 320, wherein the first locking portion 310 is disposed on the headband module 100, and the second locking portion 320 is disposed on the display module 200, wherein the display module 200 and the headband module 100 can be relatively rotated by separating the first locking portion 310 and the second locking portion 320, and the display module 200 and the headband module 100 can be relatively fixed by combining the first locking portion 310 and the second locking portion 320.

[0053] In the embodiment of the present application, the headband module 100 is approximately ring-shaped, and the inner space of the headband module 100 is a wearing space. The wearer can extend his head into the wearing space to put the head-mounted display device on his head. Figure 1 The headband module 100 may include a front base 110, a wearing piece 120 and a rear base 130. The front base 110 may be rotatably connected to the display module 200. The wearing piece 120 may include two belt structures. The two ends of the belt structures are respectively connected to the front base 110 and the rear base 130. The length of the belt structure may be set to be adjustable to adjust the size of the wearing space. A soft cushion may be installed on the rear base 130 to improve the wearing comfort of the head-mounted display device. When a controller, a power supply and other structures are provided on the head-mounted display device, the controller, the power supply and other structures may also be installed on the front base 110 and / or the rear base 130.

[0054] The first locking portion 310 and the second locking portion 320 can cooperate with each other through a snap connection, a magnetic fixed connection, a latch connection, a limit connection, etc., as long as the two can be in a mutually locked state or in a mutually separated state.

[0055] The display module 200 is used to display images. When the display module 200 and the headband module 100 are relatively fixed, the images displayed by the display module 200 can be observed by the wearer. The display module 200 can have a variety of structures. In some implementations, please refer to Fig.12 and Fig.16The display module 200 is used to display virtual images. The display module 200 may include a mounting member 210 and a display 220, a projection optical device 230 and an optical coupler 240 disposed on the mounting member 210. The mounting member 210 is rotatably connected to the headband module 100. The display 220 is used to display virtual images. The projection optical device 230 is used to magnify the virtual images displayed by the display 220. The optical coupler 240 is used to reflect the virtual images magnified by the projection optical device 230 so that the virtual images can be observed by the wearer. Since the wearer can also directly observe the on-site environment in this case, the wearer will have a feeling of fusion of virtual and reality. In some other implementations, the display module 200 is used to display virtual and real fusion images. In this case, please refer to Fig.17 The head mounted display device further includes a shooting module 600 and a second controller 700. The shooting module 600 is used to shoot the scene environment to form scene environment information. The second controller 700 is configured to receive the scene environment information and fuse the scene environment information with the virtual image to form a virtual-real fusion image. The display module 200 is used to display the virtual-real fusion image to the wearer. Different display modules 200 can be selected as needed.

[0056] The head mounted display device provided by the embodiment of the present application is provided with a locking assembly 300 including a first locking portion 310 and a second locking portion 320, wherein the first locking portion 310 is provided on the head ring module 100, and the second locking portion 320 is provided on the display module 200, and the first locking portion 310 and the second locking portion 320 are provided so as to be in a mutually locked state or a mutually separated state. When the first locking portion 310 and the second locking portion 320 are in a mutually separated state, the display module 200 can be flipped relative to the head ring module 100, so that the wearer can flip the display module 200 when necessary. 0 is flipped to a position that does not block the field of vision, so as to directly observe the scene environment. On this basis, the first locking portion 310 and the second locking portion 320 can also be in a mutually locked state. When the two are in the mutually locked state, the locking component 300 can fix the headband module 100 and the display module 200 to prevent the display module 200 from shaking relative to the headband module 100, thereby minimizing the shaking or drifting of the image, and can also prevent the wearer's exit pupil distance and field of view angle from changing after wearing the head-mounted display device, so that the wearer can completely and clearly observe the image displayed by the display module 200.

[0057] In some embodiments, see Figure 3 The first locking portion 310 includes a first magnetic member 311 , and the second locking portion 320 includes a second magnetic member 321 . The first magnetic member 311 and the second magnetic member 321 are combined by magnetic attraction.

[0058] Specifically, when the headband module 100 includes the front base 110, a first mounting groove 101 can be formed on the wall surface of the front base 110 facing away from the display module 200, and the first magnetic component 311 can be embedded in the first mounting groove 101; when the display module 200 includes the mounting component 210, a second mounting groove 211 can be formed on the side of the wall of the mounting component 210 facing away from the headband module 100, and the second magnetic component 321 can be embedded in the second mounting groove 211. In this way, the first magnetic component 311 and the second magnetic component 321 are not in direct contact with each other, and the two are separated by the wall of the front base 110 and the wall of the mounting component 210, which can avoid the risk of the first magnetic component 311 and the second magnetic component 321 falling off from the corresponding mounting grooves due to excessive magnetic attraction.

[0059] Specifically, the first magnetic member 311 and the second magnetic member 321 can be configured as two magnets with opposite poles arranged opposite to each other; one of the first magnetic member 311 and the second magnetic member 321 can also be configured as a magnet and the other as a ferromagnetic material, which can be configured as needed.

[0060] In the technical solution of this embodiment, the first locking part 310 and the second locking part 320 are detachably connected by magnetic attraction. The connection method between the two is simple and convenient, easy to maintain, and not easy to wear. It can effectively prevent the display module 200 and the headband module 100 from loosening when switching to a relatively fixed state.

[0061] In some embodiments, see Figure 4 The second locking portion 320 includes a first locking piece 322, and the first locking portion 310 includes a first elastic piece 312, wherein the first locking piece 322 can compress the first elastic piece 312 when the display module 200 is flipped, so that the second locking portion 320 is buckled into the side of the first locking portion 310 close to the rotating shaft from the side of the first locking portion 310 away from the rotating shaft when the display module 200 is flipped toward the direction close to the headband module 100, and the second locking portion 320 is moved from the side of the first locking portion 310 close to the rotating shaft to the side of the first locking portion 310 away from the rotating shaft when the display module 200 is flipped toward the direction away from the headband module 100.

[0062] Specifically, the first elastic member 312 can be set as an elastic pin, and the first elastic member 312 can also be set as a rubber member or a silicone member. When the headband module 100 is provided with a front base 110, the surface of the front base 110 facing the display module 200 can be recessed with a third mounting groove 102 for accommodating the first elastic member 312, and the first elastic member 312 can be extended and retracted along the depth direction of the third mounting groove 102; when the display module 200 is provided with a mounting member 210, the first locking member 322 can be embedded in the mounting member 210 at one end and protrude from the surface of the mounting member 210 facing the headband module 100 at the other end. The first locking member 322 can be set as a metal member.

[0063] In the technical solution of this embodiment, the display module 200 is flipped toward the direction close to the headband module 100 until the first locking piece 322 is buckled into the side of the first elastic piece 312 close to the rotating shaft, so that the display module 200 can be locked on the headband module 100, and the display module 200 is flipped toward the direction away from the headband module 100 until the first locking piece 322 is moved out to the side of the first elastic piece 312 away from the rotating shaft, so that the display module 200 and the headband module 100 can be unlocked, and the display module 200 can be unlocked and fixed more conveniently.

[0064] In some embodiments, see Figures 5 to 8 The first locking portion 310 includes two second locking pieces 313 and two second elastic pieces 314. The two second locking pieces 313 can be close to or away from each other. The second elastic piece 314 is used to provide elastic force to the second locking pieces 313 so that the two second locking pieces 313 are close to each other; the second locking portion 320 includes a first boss 323 that is snap-fitted with the second locking pieces 313. The first boss 323 has a first connecting end 3231 and a first free end 3232 that are oppositely arranged. The first connecting end 3231 is connected to the display module 200.

[0065] In this embodiment, please refer to Figure 7The first locking portion 310 and the second locking portion 320 can be specifically configured as the following structure: the wall surface of the headband module 100 facing the display module 200 is provided with a plug-in slot 103 and two step slots 104 interconnected with the plug-in slot 103, the two step slots 104 are respectively located on opposite sides of the plug-in slot 103, the inner diameter of the end of the step slot 104 close to the plug-in slot 103 is smaller than the inner diameter of the end of the step slot 104 away from the plug-in slot 103, the second locking piece 313 is in the shape of a stepped column, the second locking piece 313 is sleeved in the step slot 104, and the step surface of the second locking piece 313 abuts against the step surface of the step slot 104, the second elastic piece 314 is arranged in the step slot 104, and is located between the end surface of the end with a larger inner diameter of the step slot 104 and the end surface of the end with a larger outer diameter of the second locking piece 313, the second elastic piece 314 can push the second locking piece 313 and make the end of the second locking piece 313 with a smaller outer diameter extend into the plug-in slot 103. With this arrangement, after the second boss 324 is plugged into the plug-in slot 103, the second boss 324 can make the two second locking pieces 313 move away from each other. When the second locking pieces 313 move away from each other, the second elastic piece 314 will be compressed to make the second elastic piece 314 accumulate force, thereby making the two second locking pieces 313 lock the second boss 324. In some implementations, the maximum outer diameter of the second free end 3232 of the second boss 324 can be set to be larger than the minimum spacing between the two second locking pieces 313 when they are close to each other, so that the second boss 324 can be more firmly clamped between the two second locking pieces 313, thereby making the display module 200 more stably locked on the headband module 100.

[0066] In the technical solution of this embodiment, the display module 200 is locked on the headband module 100 by means of two second locking pieces 313 and a second boss 324 which are mutually engaged, and the display module 200 can be unlocked by withdrawing the second boss 324 from between the two second locking pieces 313. The operations of locking and unlocking the display module 200 are simple and convenient.

[0067] In some embodiments, see Fig. 9 and Fig.10 The first locking portion 310 includes two elastic sheets 315 arranged opposite to each other; the second locking portion 320 includes a second boss 324 engaged with the elastic sheet 315, and the second boss 324 has a second connecting end 3241 and a second free end 3242 arranged opposite to each other, and the second connecting end 3241 is connected to the display module 200.

[0068] It can be understood that when the two elastic sheets 315 are in a natural state, that is, in a state without force, the minimum distance between the two elastic sheets 315 is smaller than the maximum value of the outer diameter of the second free end portion 3242 of the second boss 324 .

[0069] In the technical solution provided by the present embodiment, when the second free end portion 3242 of the second boss 324 is clamped between the two spring sheets 315, the middle portion of the two spring sheets 315 will be squeezed, causing the middle portion of the two spring sheets 315 to deform outward, and the two deformed spring sheets 315 have a tendency to return to their original state, and the second boss 324 can be clamped between the two spring sheets 315, thereby enabling the display module 200 and the headband module 100 to be relatively fixed; when it is necessary to flip the display module 200, an external force is used to make the second boss 324 withdraw from between the two spring sheets 315, so that the display module 200 can be in a state where it can be flipped relative to the headband module 100. In the technical solution provided by the present embodiment, the structures of the first locking portion 310 and the second locking portion 320 are relatively simple, which can facilitate the production and manufacturing of the head-mounted display device, and the operations of mutually clamping and unclamping the first locking portion 310 and the second locking portion 320 are relatively simple, which can facilitate the wearer's operation.

[0070] In some embodiments, see Figures 11 to 15 The second locking portion 320 includes a first open groove 325, and the first locking portion 310 includes a third elastic member 316, wherein when the display module 200 is flipped toward the direction close to the headband module 100, the wall surface of the first open groove 325 compresses the third elastic member 316 so that the third elastic member 316 is snapped into the first open groove 325.

[0071] Specifically, the third elastic member 316 can be set as an elastic pin or a spring, and a fourth mounting groove 105 for mounting the third elastic member 316 can be set on the wall surface of the headband module 100 facing the display module 200, and the depth of the fourth mounting groove 105 can be designed so that the third elastic member can be completely contracted into the fourth mounting groove 105. In this way, when the third elastic member 316 contracts, the wall surface of the headband module 100 facing the display module 200 and the wall surface of the display module 200 facing the headband module 100 can fit together, which is conducive to more stably locking the display module 200 with the headband module 100.

[0072] Specifically, the number of third elastic members 316 can be one or more, the number of first open slots 325 is equal to the number of third elastic members 316, and when the number of third elastic members 316 and the number of first open slots 325 are both multiple, the positions of the multiple first open slots 325 correspond one-to-one to the positions of the multiple third elastic members 316. Figures 11 to 15In the illustrated embodiment, the number of the third elastic members 316 and the number of the first open grooves 325 are both two. The two third elastic members 316 are respectively arranged on the opposite sides of the headband module 100, and the two first open grooves 325 are respectively arranged on the opposite sides of the display module 200 and correspond one to one with the positions of the two third elastic members 316. The two third elastic members 316 are respectively snapped into the two first open grooves 325, so that the display module 200 can be locked on the headband module 100 more stably.

[0073] In the technical solution of the present embodiment, when the display module 200 is flipped toward the direction close to the headband module 100, the wall surface of the display module 200 provided with the first open groove 325 will first contact the third elastic member 316. As the display module 200 is further flipped toward the direction close to the headband module 100, the wall surface of the display module 200 provided with the first open groove 325 will gradually compress the third elastic member 316 until the third elastic member 316 is snapped into the first open groove 325. At this point, the display module 200 can be relatively fixed relative to the headband module 100. In the present embodiment, the method of locking the display module 200 is relatively convenient. In addition, in the technical solution of the present embodiment, the elastic coefficient and length of the third elastic member 316, the depth of the first open groove 325 and other parameters can be set. When the display module 200 is flipped toward the direction away from the headband module 100, the third elastic member 316 can withdraw from the first open groove 325. In this way, there is no need to set the unlocking member 330, which can simplify the structure of the locking assembly 300.

[0074] In some embodiments, see Figures 11 to 15 The display module 200 is provided with a first open groove 325 and a second open groove 326 interconnected with each other, and the head-mounted display device also includes an unlocking member 330, which is arranged in the second open groove 326 and is configured to compress the third elastic member 316 when receiving external pressure, so that the third elastic member 316 withdraws from the first open groove 325.

[0075] Exemplarily, the unlocking member 330 is rotatably disposed on the inner wall of the second open groove 326, one end of the unlocking member 330 is exposed at the opening of the second open groove 326 and is used to receive pressure from the wearer, and the other end of the unlocking member 330 is used to push the end of the third elastic member 316 extending into the first open groove 325, thereby causing the third elastic member 316 to withdraw from the first open groove 325.

[0076] Exemplarily, there are two third elastic members 316 and two first open grooves 325, the two third elastic members 316 are respectively arranged on the opposite sides of the headband module 100, the two first open grooves 325 are respectively arranged on the opposite sides of the display module 200, and the two unlocking members 330 are also respectively arranged on the opposite sides of the display module 200. It can be understood that when the wearer wears the head-mounted display device, the two first elastic members 312, the two first open grooves 325 and the two first unlocking members 330 are respectively located on the left and right sides of the wearer. Through the above design, the display module 200 can be locked on the headband module 100 more stably, and it can also be convenient for the wearer's left and right hands to press the two unlocking members 330 respectively to unlock the display module 200.

[0077] In the technical solution of this embodiment, the third elastic member 316 is withdrawn from the first open groove 325 by pressing the unlocking member 330, and there is no need to squeeze the third elastic member 316 through the wall of the display module 200 to withdraw the third elastic member 316 from the first open groove 325. Therefore, the length of the third elastic member 316 extending into the first open groove 325 can be set to be longer, which is conducive to the third elastic member 316 locking the display module 200 on the headband module 100 more stably, so that the wearer can clearly and completely observe the image displayed by the display module 200.

[0078] In some embodiments, see Figure 1 , Figure 2 as well as Figures 11 to 15 The head mounted display device further includes a first controller 400 and an interaction module 500. The first controller 400 is electrically connected to the interaction module 500 and the third elastic member 316, respectively, and is configured to control the extension and retraction of the third elastic member 316 after receiving the interaction information collected by the interaction module 500, so that the third elastic member 316 is engaged with the first open slot 325 or withdraws from the first open slot 325.

[0079] Specifically, the interactive module 500 can be set as a touch screen or a voice sensor, and the touch screen can collect the touch command input by the user and transmit it to the first controller 400; the interactive module can also be set as a voice sensor, and the voice sensor can use the voice command input by the user and transmit it to the first controller 400. After receiving and following the touch command or voice command, the first controller 400 can control the third elastic member 316 to extend or shorten. The third elastic member 316 can be set as an elastic pin or a spring.

[0080] In the technical solution provided in this embodiment, an interactive module 500 and a first controller 400 are provided. The user can control the extension or shortening of the third elastic member 316 by inputting control instructions to the interactive module 500, thereby realizing the locking and unlocking of the display module 200. The head-mounted display device has a high degree of intelligence, which is conducive to improving the user experience.

[0081] In some embodiments, the head mounted display device further includes a fourth elastic member (not shown in the figure, the same below), which is disposed between the display module 200 and the headband module 100, and is used to provide elastic force for the display module 200 when the first locking portion 310 and the second locking portion 320 are switched from a mutually locked state to a mutually separated state, so as to flip the display module 200 by a predetermined angle in a direction away from the headband module 100. The predetermined angle can be set to 30°-120°, for example, 80°, 85°, 90°, 95°, 100°, 110°, etc.

[0082] Exemplarily, the fourth elastic member can be configured as a torsion spring. When the mounting member 210 and the headband module 100 are rotatably connected via a rotating shaft, the torsion spring can be sleeved on the rotating shaft, and the two free ends of the torsion spring respectively abut against the mounting frame and the headband module 100. The first locking portion 310 and the second locking portion 320 are locked with each other, that is, when the display module 200 and the headband module 100 are locked with each other, the torsion spring accumulates elastic energy release. When the first locking portion 310 and the second locking portion 320 are separated from each other, that is, when the display module 200 is flipped relative to the headband module 100 in a direction away from the headband module 100, the elastic properties accumulated in the torsion spring will be released, the display module 200 can be popped open, and the display module 200 can be driven to flip by a predetermined angle in a direction away from the headband module 100.

[0083] In the technical solution of the embodiment of the present application, by providing a fourth elastic member, when the first locking portion 310 and the second locking portion 320 are separated from each other, the display module 200 can be automatically popped open by the fourth elastic member. In this way, there is no need for the wearer to flip the display module 200 by hand, which helps to reduce the wearer's operation and enable the wearer to better perform surgery or other operations.

[0084] In some embodiments, see Fig.17 The head-mounted display device also includes a shooting module 600 and a second controller 700. The shooting module 600 is used to shoot the scene environment to form scene environment information. The second controller 700 is configured to receive the scene environment information and fuse the scene environment information with the virtual information to form a virtual-reality fusion image. The display module 200 is used to display the virtual-reality fusion image to the wearer.

[0085] Specifically, the second controller 700 can be the same controller as the first controller 400, or the second controller 700 and the first controller 400 can be two independent controllers, which can be set as needed. The shooting module 600 can be set as a camera or an image sensor, and the shooting module 600 can be set on the head ring module 100. When the head ring module 100 includes a front base 110, the shooting module 600 can be set on the front base 110.

[0086] In the technical solution of the embodiment of the present application, since a shooting module and a second controller 700 are provided, the fusion of virtual information and the on-site environment can be achieved through video perspective, that is, the image finally seen by the user is a synthesized virtual-real fusion image, the virtual information and the on-site environment information have good delay matching, and virtual image drift is not prone to occur, which can facilitate the wearer to perform operations such as surgery more accurately.

[0087] In some embodiments, see Figure 1 The head mounted display device further includes goggles 800 , which are mounted on a side of the display module 200 facing away from the headband module 100 .

[0088] In the technical solution provided in this embodiment, the protective glasses can block the patient's splattered blood, etc., protect the display module 200 and the wearer's head, avoid contaminating the display module 200 as much as possible, and improve the safety of using the head-mounted display device.

[0089] In some embodiments, see Figure 1 The head mounted display device further includes an adjustment module 900 , which can adjust the sound, brightness, etc. of the image displayed by the display module 200 .

[0090] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A head mounted display device, characterized in that: The head mounted display device comprises: A headband module (100) is arranged to form a wearing space for accommodating a wearer's head; A rotating shaft, mounted on the head ring module (100); A display module (200) is rotatably mounted on the outer side of the head ring module (100) via the rotating shaft; The locking assembly (300) comprises a first locking portion (310) and a second locking portion (320), wherein the first locking portion (310) is arranged on the headband module (100), and the second locking portion (320) is arranged on the display module (200), wherein: By separating the first locking part (310) and the second locking part (320), the display module (200) and the headband module (100) can be relatively rotated; or by combining the first locking part (310) and the second locking part (320), the display module (200) and the headband module (100) can be relatively fixed.

2. The head mounted display device according to claim 1, characterized in that: The first locking portion (310) comprises a first magnetic member (311), the second locking portion (320) comprises a second magnetic member (321), and the first magnetic member (311) and the second magnetic member (321) are combined by magnetic attraction.

3. The head mounted display device according to claim 1, characterized in that: The second locking portion (320) includes a first locking piece (322), and the first locking portion (310) includes a first elastic piece (312), wherein the first locking piece (322) can compress the first elastic piece (312) when the display module (200) is flipped over, so that the second locking portion (320) is buckled into the side of the first locking portion (310) close to the rotating shaft from the side of the first locking portion (310) away from the rotating shaft when the display module (200) is flipped in the direction close to the headband module (100), and the second locking portion (320) is moved from the side of the first locking portion (310) close to the rotating shaft to the side of the first locking portion (310) away from the rotating shaft when the display module (200) is flipped in the direction away from the headband module (100).

4. The head mounted display device according to claim 1, characterized in that: The first locking portion (310) includes two second locking pieces (313) and two second elastic pieces (314), the two second locking pieces (313) can be moved closer to or farther from each other, and the second elastic piece (314) is used to provide elastic force to the second locking pieces (313) so that the two second locking pieces (313) are moved closer to each other; the second locking portion (320) includes a first boss (323) engaged with the second locking piece (313), the first boss (323) having a first connecting end (3231) and a first free end (3232) arranged opposite to each other, and the first connecting end (3231) is connected to the display module (200).

5. The head mounted display device according to claim 1, characterized in that: The first locking portion (310) includes two elastic sheets (315) arranged opposite to each other; the second locking portion (320) includes a second boss (324) engaged with the elastic sheet (315), the second boss (324) having a second connecting end (3241) and a second free end (3242) arranged opposite to each other, and the second connecting end (3241) is connected to the display module (200).

6. The head mounted display device according to claim 1, characterized in that: The second locking portion (320) includes a first open groove (325), and the first locking portion (310) includes a third elastic member (316), wherein when the display module (200) is flipped toward the direction close to the headband module (100), the wall surface of the first open groove (325) compresses the third elastic member (316) so that the third elastic member (316) is snapped into the first open groove (325).

7. The head mounted display device according to claim 6, characterized in that: The display module (200) is provided with a second open groove (326) interconnected with the first open groove (325), and the head-mounted display device also includes an unlocking member (330), which is arranged in the second open groove (326) and is configured to compress the third elastic member (316) when receiving external pressure, so that the third elastic member (316) withdraws from the first open groove (325).

8. The head mounted display device according to claim 6, characterized in that: The head mounted display device further comprises a first controller (400) and an interaction module (500), wherein the first controller (400) is respectively connected to the interaction module (500) and the third elastic member (316) by electrical signals, and is configured to control the extension and retraction of the third elastic member (316) after receiving interaction information collected by the interaction module (500), so that the third elastic member (316) is engaged with the first open slot (325) or withdraws from the first open slot (325).

9. The head mounted display device according to any one of claims 1 to 8, characterized in that: The head mounted display device further comprises a fourth elastic member, which is arranged between the display module (200) and the head ring module (100) and is used for providing an elastic force to the display module (200) when the first locking portion (310) and the second locking portion (320) are switched from a mutually locked state to a mutually separated state, so as to cause the display module (200) to flip at a predetermined angle in a direction away from the head ring module (100).

10. The head mounted display device according to any one of claims 1 to 8, characterized in that: The head mounted display device further comprises a shooting module (600) and a second controller (700), wherein the shooting module (600) is used to shoot a scene environment to form scene environment information, and the second controller (700) is configured to receive the scene environment information and fuse the scene environment information with virtual information to form a virtual-reality fusion image, and the display module (200) is used to display the virtual-reality fusion image to the wearer.

Images