CN107111130B

CN107111130B - Head-mounted display device

Info

Publication number: CN107111130B
Application number: CN201580009098.XA
Authority: CN
Inventors: 王记; 施宏艳
Original assignee: Shenzhen Royole Technologies Co Ltd
Current assignee: Shenzhen Royole Technologies Co Ltd
Priority date: 2015-10-23
Filing date: 2015-10-23
Publication date: 2020-08-28
Anticipated expiration: 2035-10-23
Also published as: WO2017067002A1; CN107111130A

Abstract

A head-mounted display device (100) comprises a body (20), a display module (10) arranged on the body and a light splitting module (90). The body comprises a viewing inner side (20A) and a viewing outer side (20B); the display module is rotatably arranged on the body, and a display surface (101) of the display module can be turned to a direction for watching the inside emergent light source to provide an inside display mode and turned to a direction for watching the outside emergent light source to provide an outside display mode; the light splitting module is used for splitting a light source of the display module into two light beams when in an external display mode, and the head-mounted display device emits the two light beams through the viewing inner side. When the wearer needs to share videos with other people, the display content is separated into two paths of light beams which are emitted through the viewing inner side by the light splitting module, and the two paths of light beams are respectively projected to the two eyes of the wearer, so that the wearer can still keep the two eyes to view the display content.

Description

Head-mounted display device

Technical Field

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

Background

With the development of science and technology, head-mounted display devices have been increasingly used for civilization, providing high-quality visual experience for more and more people. However, when the wearer wishes to share the display content with a person nearby, the wearer is typically required to remove the device to wear by the person nearby, thus resulting in the wearer not being able to share the display content with the person nearby at the same time. Although the display can be set by rotating the display and the display on one side is rotated to share the display content with other people under the condition that the wearer does not take off the device, the wearer only sees the display content of the display which is not rotated on one side by the left eye or the right eye, and the experience effect is poor.

Disclosure of Invention

The embodiment of the invention discloses a head-mounted display device, which allows a wearer to share display content with other people without taking down equipment by the wearer and can watch the content with two eyes simultaneously.

The embodiment of the invention discloses a head-mounted display device which comprises a body, a display module and a light splitting module, wherein the display module and the light splitting module are arranged on the body. The body comprises a viewing inner side and a viewing outer side. The display module is rotatably arranged on the body, and the display surface of the display module can be turned to provide an inward display mode by watching the direction of the inner emergent light source and can be turned to provide an outward display mode by watching the direction of the outer emergent light source; the light splitting module is used for splitting a light source of the display module into two light beams when in an external display mode. And the head-mounted display device emits the two light beams through the viewing inner side.

The head-mounted display device comprises the light splitting module and the display module which is rotatably arranged, so that when a wearer needs to share display contents with other people, the display module can be rotated to enable the display surface of the display module to turn to the outer side for watching, and the display content can be watched by other people.

Drawings

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

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

FIG. 2 is a block diagram of the head-mounted display device shown in FIG. 1;

FIG. 3 is a partial schematic view of the head mounted display device of FIG. 1;

FIG. 4 is a schematic diagram of a display module of the head-mounted display device in FIG. 1;

FIG. 5 is a schematic diagram illustrating a body structure of a head mounted display device according to an embodiment;

fig. 6 is a schematic diagram of a head-mounted display device provided in an embodiment of the invention, the head-mounted display device having a control module and two light splitting modules;

fig. 7 is a schematic optical path diagram of a display module of a head-mounted display device in an intra-display mode according to an embodiment of the present invention;

fig. 8 is a schematic optical path diagram of the head-mounted display device according to the embodiment of the present invention after the display module is switched to the external display mode; and

fig. 9 is a schematic optical path diagram of a display module of a head-mounted display device in an external display mode according to another embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a head mounted display device 100 in a first embodiment of the present disclosure is disclosed. The head-mounted display device 100 includes a main body 20, two display modules 10 disposed on the main body 20, and two light splitting modules 90 (shown in fig. 6) disposed in the main body 10 and respectively corresponding to the two display modules 10. The two display modules 10 are displays that provide display content to be viewed by the wearer's left and right eyes, respectively. The two display modules 10 are rotatably disposed on the body 10 and can be turned over, and each display module 10 can be rotated relative to the body 20, so that the display surface 101 (as shown in fig. 4) thereof can be turned to realize an inward display mode by viewing the inside outgoing light source, and can be turned to realize an outward display mode by viewing the outside outgoing light source, thereby providing switching between the inward display mode toward the wearer and the outward display mode toward the other people except the wearer. The light splitting module 90 is used for splitting the light source of the corresponding display module 10 into two light beams which are respectively projected to the two eyes of the wearer. The light source of the display module 10 provides the display surface 101 with a light source of display content, and the display content can be specifically understood as an image. Specifically, when the wearer needs to share the display content with other people, one of the display modules 10 can be switched to the external display mode, and meanwhile, the light splitting module 90 corresponding to the other display module 10 separates the light source displayed by the other display module 10 into two light beams, and the two light beams are emitted through the viewing inner side and projected to the two eyes of the wearer respectively, so that the wearer and other people can still keep watching the display content with the two eyes while realizing the display content sharing.

Referring to fig. 2, the head-mounted display device 100 further includes a headband 30 connected to the body 20 and used for wearing the head-mounted display device 100 on the head of a wearer, an earphone 40, a speaker 42 disposed on the body 20, and a processor 50. The processor 50 is electrically connected to the earphones 40, the two display modules 10, and the speaker 42 for signal processing. The processor 50 is mounted in the head-mounted display device 100 in the present embodiment, for example, disposed in the body 20. It is understood that in other embodiments, the processor 50 and/or the power supply may be separate independent devices and connected to the head-mounted display apparatus 100 through a plug-in interface. The speaker 42 may be disposed at any position of the head-mounted display device, for example, the headband 30 or the earphone 40.

Referring to fig. 3 and 4, the display module 10 may be an integrated structure including a display and an optical module, or may be a single display structure independent of the optical module. The optical module is a special optical lens, and is used for projecting an amplified virtual image from a light source provided by the corresponding display surface 101 according to a preset light path, so that a small-sized screen can project a display effect of a large screen. Specifically, the integrated structure may be any structure that can relatively fix the display and the corresponding optical module, and has a structure that can enable the light beam to exit, for example, the display module 10 may include a closed box body for fixing the display and the optical module, and a viewing window for light beam exiting is disposed at a position of the box body corresponding to the exit light beam formed by the display surface light source; the display module 10 may also include a fixing base or the like for fixing the display and the optical module without shielding the display surface. In this way, the optical module can rotate together with the display. In the present embodiment, please refer to fig. 3 and fig. 4 in combination, the two display modules 10 are a single display structure. The two display modules 10 are substantially rectangular. It is understood that in other embodiments, the two display modules 10 may also be oval, regular polygon, etc. The display module 10 is provided with a rotation shaft 150 at two opposite sides (e.g., an upper side and a lower side). The two shafts 150 are disposed coaxially with the axis a. The axis a is in this embodiment an axis of symmetry of the display module 10. The shaft 150 is further opened with a through hole 152 to allow a signal line connected to the display module 10 to pass through. In the present embodiment, the through hole 152 extends along the axis a, and forms an opening at the end of the rotation shaft 150 far away from the display module 10. In other embodiments, the rotation shaft 150 can be disposed on two opposite sides (e.g., a left side and a right side) of the display module 10, and the coaxial axis is perpendicular to the axis a in this embodiment.

The main body 20 may be a frame similar to a pair of glasses, or a box with an internal space, as shown in fig. 5, the viewing inner side 20A of the box, i.e. one side corresponding to the two eyes of the user, is provided with a viewing window 21 for projecting light beams for the wearer to view. The body 20 also includes a viewing exterior 20B. The viewing outer side 20B of the main body 20 is further opened with an opening 210 for installing the display module 10. The shape of the opening 210 is adapted to the shape of the display module 10. Specifically, when the main body 20 is in the above-mentioned box structure, the opening 210 is disposed on the viewing outer side 20B, i.e. the non-viewing inner side 20A, and may be, for example, the side opposite to the viewing window 21, the left side, the right side, the upper side, and the bottom side. In the example provided in connection with fig. 1 to 4, the body 20 is provided with two substantially rectangular openings 210. The two openings 210 are used to mount two display modules 10, respectively. The upper sidewall 211 and the lower sidewall 212 of each opening 210 are opened with a shaft hole 214 for receiving the rotating shaft 150. The shaft 150 is rotatably received in the shaft hole 214, so that the display module 10 can rotate relative to the main body 20, and the display surface of the display module 10 can be switched from an inward display mode in which the display surface faces a direction of viewing the inside outgoing light source through the opening 210 to an outward display mode in which the display surface faces a direction of viewing the outside outgoing light source through the opening 210, so as to allow the wearer to share display contents with others. The opening 210 is axially symmetric with respect to a connecting line of the two shaft holes 214. The inner wall of the shaft hole 214 is opened with a through hole (not shown) corresponding to the through hole 152 to allow the signal line connected to the display module 10 to be routed to the inside of the body 20 through the shaft hole 214 and the through hole 152, so as to realize the electrical connection with other modules of the wearable display device 100, including the electrical connection to the processor 50. In the mode, the internal space can be fully utilized, and the wiring is hidden in the wearable display device.

As shown in fig. 7, when the display module 10 only includes a display (hereinafter, the same reference numeral 10 as the display module will be used), the wearable display device 100 further includes an optical module 104 disposed corresponding to the display module 10. In this example, one optical module 104 is disposed corresponding to each of the two display modules 10. The optical module 104 is a special optical lens, and is configured to project the display content of the corresponding display module 10 to the eyes of the wearer according to a predetermined optical path, so that the small-sized screen can project the display effect of a large screen. Specifically, the light source provided by the display surface 101 of the display module 10 passes through the optical module 104 and then is projected to both eyes of the wearer through the viewing window. It is to be understood that this illustration is merely a schematic representation and is not intended to limit the specific location of the modules of the present invention. In other embodiments, the viewing outer side can be flexibly selected according to the requirement, and the rotatable display module 10 is disposed in the corresponding region of the viewing outer side. For example, the display module 10 can be disposed at two opposite sides of the main body 20 to be shared with the outside, as shown in fig. 5, when the display module is to be shared with the outside through the side of the main body, the display surface 101 can be rotated to the outside through the side in the mode. In the inward display mode, the display surface 101 may rotate to face the viewing window 21 corresponding to the viewing inner side 20A, or may rotate to other directions, as long as in this mode, the display surface 101 faces the light incident side of the optical module 104, and the light path designed by the optical module 104 forms an outgoing light beam through the viewing window 21 corresponding to the viewing inner side 20A. The display 10 can be placed anywhere on the body according to the principles of the present invention described above.

Referring to fig. 7, the two light splitting modules 90 are disposed in the main body 10 and located between the two optical modules 104 and the two corresponding display modules 10. The light splitting module 90 is configured to split the light source provided by the display surface 101 of the corresponding display module 10 into two light beams that respectively pass through the two optical modules 104 and further exit through the viewing inner side 20A, and the two light beams are respectively projected to both eyes of the wearer. The light splitting module 90 may be a combination of a light splitter and one or more total reflection mirrors, wherein the total reflection mirrors are used to change the optical path of the light beam split by the light splitter, so as to ensure that the light beam split by the light splitter can be projected to both eyes of the wearer. Specifically, when one of the display modules 10 rotates to the outward display mode, the light splitting module 90 corresponding to the other display module 10 splits the light source of the other display module 10 into two light beams, and the two light beams are respectively projected to the two wearing eyes through the optical module 104. In this way, the wearer can share the display content with others, and the display content can still be viewed through two eyes.

As shown in fig. 6, the wearable display device 100 further includes a control module 98, which is used to control whether the light splitting module 90 acts on the light path. In particular, the control module 98 may be a shutter (hereinafter, the same reference numeral 98 as the control module is used). When the display surfaces 101 of the two display modules 10 are turned to the inward display mode, the shutter 98 controls the light splitting module 90 to jump, so that the light splitting module 90 does not act on the light path. At this time, the display contents of the two display modules 10 are projected to both eyes of the wearer through the corresponding optical modules 104. When one of the display modules 10 rotates to the outward display mode, the control module 98 controls the light splitting module 90 corresponding to the other display module 10 to be lowered, so that the light splitting module 90 acts on the light path to split the light source of the other display module 10 into two light beams. The two light beams are projected to the wearing eyes through the optical module 104. Thus, the wearer can still keep watching the display content with two eyes while sharing the display content with other people. The shutter 98 may be controlled manually or electrically.

In this embodiment, the default sound playing mode of the head-mounted display device 100 is sound amplification, i.e. playing through the earphone 40. When the display module 10 is switched to the outward display mode, the sound outward playing is automatically started, i.e. the speaker 42 is started to play. Specifically, the head-mounted display device 100 further includes two rotation sensors 60. The two rotation sensors 60 are electrically connected to the processor 50, and are configured to detect a state of the display module 10 and generate a detection signal when detecting that any display module 10 is switched to the outward display mode. The processor 50 is arranged to initiate a sound play-out mode, i.e. to control the audio signal to be played out through the loudspeaker 42, when the detection signal is received. Therefore, the wearer can synchronously share the audio and video contents with other people, and the user experience is improved. It will be appreciated that initiating sound playback upon receiving the detection signal includes both the earphone 40 playing simultaneously with the speaker 42 and also includes directly switching the speaker 42 to play when the earphone 40 stops playing. The corresponding play selection mode can be flexibly set and can be preferably provided for a user to carry out self-configuration selection.

In connection with the embodiment of fig. 4, the head-mounted display apparatus 100 further includes a latch assembly 70 disposed on the rotating display module 10. The latch assembly 70 is used to lock the display module 10 when the display module 10 is in the inward display mode or the outward display mode. The latch assembly 70 includes a latch member 72 movably disposed on the display module 10, an elastic member (not shown) abutting against the latch member 72 to extend the latch member 72 out of the display module 10, and a button 74 for driving the latch member 72 to retract the display module 10. The two opposite sidewalls of the opening 210 are both provided with a fastening groove 216 for fastening the locking element 72. The catch member 72 locks the display module 10 in cooperation with the catching groove 216. Specifically, when the display module 10 is in the inward display mode, the locking member 72 is locked to the locking groove 216 of the left sidewall to lock the display module 10, thereby keeping the inward display mode unchanged. When it is required to switch to the outward display mode, the button 74 is pressed, the locking element 72 is separated from the engaging groove 216 of the left sidewall and retracts into the display module 10, specifically, the button 74 is pressed to drive the spring element to drive the locking element 72 to retract into the display module 10, at this time, the display module 10 is rotated by 180 degrees, and the locking element 72 is engaged with the engaging groove 216 of the right sidewall to lock and maintain the display module 10 in the outward display mode.

It is understood that in other embodiments, the latch assembly 70 is disposed on the body 20, and the display module 10 has engaging grooves 216 formed on two opposite sides thereof. The engagement groove 216 cooperates with the locking member 72 to lock the display module 10 to maintain the display module 10 in the outward display mode or the inward display mode.

In other embodiments, the locking assembly can be any lockable structure, such as a limiting structure, a locking structure, a magnetic attraction structure, and the like.

In one embodiment, both sides of the edge of the rotatable display module 10 are provided with the handling assembly 801. When the wearer rotates the display module 10, the operation assembly 801 is buckled to tilt the display module 10, so that the display module 10 can be rotated smoothly.

As shown in fig. 7, in use, if the wearer does not need to share the display content with other people, the display module 10 can be switched to the inward display mode, and the two light splitting modules 90 are controlled to jump up through the optical shutter 98, at this time, the display content of the display module 10 is projected to both eyes of the wearer through the viewing inner sides 20A via the corresponding optical modules 104. As shown in fig. 8, when the wearer needs to share video with another person, one of the display modules 10 (e.g., the left display module) is rotated to switch the left display module 10 to the outward display mode, and the optical splitter module 90 corresponding to the other display module (e.g., the right display module) is controlled to be lowered by the optical shutter 98 to act on the optical path. At this time, the display surface 101 of the left display module 10 turns to the viewing outer side 20B to provide the viewing content for other people except the wearer, the display content of the right display module 10 is split into two beams after being acted by the corresponding beam splitting module 90, and the two beams are respectively projected to the two wearing eyes after passing through the optical module 104. At the same time, the rotation sensor 60 generates a detection signal, and the processor 50 controls the audio signal to be played out through the speaker 42. Therefore, when the wearer and other people share the audio and video content, the display content can still be watched through two eyes, and the user can listen to the audio playing through the earphone 40, so that the user experience is improved.

In another embodiment of the present invention, as shown in fig. 9, the body 20 is further provided with a converging lens 106. The converging lens 106 corresponds to the display module 10 and is used to magnify the display contents of the display module 10 for viewing by others when the display surface 101 of the display module 10 is turned to view the outer side 20B (in this case, the outward display mode). Specifically, the converging lens 106 is disposed on the side of the body 20 where the opening 210 is opened. Preferably, the converging lens 106 is a fresnel lens in this embodiment. The converging lens 106 may be an optical element or a lens module capable of magnifying an image in other embodiments. In this mode, the display module 10 may be rotated by providing a rotating mechanism, for example, by a rotating knob fixedly connected to the rotating shaft 150. It is also possible to rotate the display module 10 in an electrically controlled manner by providing a driving motor, which may be electrically connected to the processor 50. For example, as shown in fig. 5, the viewing inner side 20A has a viewing window 21 for a wearer to view, the opening 210 is disposed at two side ends of the body 20, the converging lens 106 is corresponding to the shape of the opening 210 and is embedded in the opening 210, the display module 10 is disposed in the body 20 corresponding to the opening 210, the upper side of the display module 10 is disposed with a rotating shaft 150, and the rotating shaft 150 is connected to the operating component 80 outside the body 20 from inside the body 20, specifically, a rotating knob, and the rotating shaft 150 can be driven to rotate by rotating the operating component 80, so that the display surface of the display module 10 can be turned to the converging lens 106, and the display surface can also be turned to the direction of the light source exiting from the viewing inner side 20A, that is, the light source of the display surface can be projected to both eyes of the user through the. Specifically, the display surface may be turned to the direction of the viewing window 21 so that the display surface directly projects out of the viewing window 21. The rotation axis 150 is disposed in the longitudinal direction of the display module 10, i.e. in the Y-axis direction, in this way, a plurality of openings 210 may be disposed according to any position of the viewing outer side where the display surface can be turned, for example, the openings may be disposed on the side opposite to the viewing inner side 20A. In other embodiments, the rotation shaft 150 may be disposed in the transverse direction of the display module 10, i.e. in the X-axis direction, in this embodiment, the display surface may also be rotated to the upper side and the bottom side of the main body 20 to realize the outward display mode, correspondingly, the opening 210 may be disposed in the area of the upper side and the bottom side corresponding to the display surface, and meanwhile, in the inward display mode, as long as the display surface 101 is rotated to the light incident side of the optical module, the inward emergent light source can be viewed.

According to the above embodiment, the display module 10 may only include a display, and the display surface 101 of the display is turned to the direction of the light source exiting through the viewing inner side 20A, including the way that the display surface is not facing the viewing window 21 of the viewing inner side 20A, as long as the display surface 101 faces the set optical module 104, the optical module 104 may define a required light path, and project the light source of the display surface 101 to the light beam exiting from the viewing inner side 20A, and the light beam is projected to both eyes of the wearer through the viewing window 21.

It is understood that in other embodiments, referring to fig. 8, one of the two display modules 10 (hereinafter, referred to as a first display module 10) is rotatably disposed, and the other display module 10 (hereinafter, referred to as a second display module 10) is fixedly disposed, in such a manner that the wearable display apparatus 100 is provided with only one light splitting module 90. The light splitting module 90 corresponds to the second display module 10, and is configured to split the light source of the second display module 10 into two light beams when the first display module 10 rotates to the outward display mode. The two light beams respectively pass through the optical module 104 and then are projected to the wearing eyes through the viewing inner side 20A. Thus, the wearable display device 200 can further simplify the component composition and structure while ensuring that the wearer can share audio display content with others and the wearer can view the display content with both eyes.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

1. A head-mounted display device comprises a body and a display module arranged on the body, wherein the body comprises a viewing inner side and a viewing outer side; the head-mounted display device also comprises a light splitting module which is used for splitting a light source of the display module into two paths of light beams when in an external display mode, and the two paths of light beams are emitted by the head-mounted display device through the viewing inner side;

the head-mounted display device comprises two display modules which are rotatably arranged on the body and two light splitting modules which respectively correspond to the two display modules, when the display surface of one display module of the two display modules is rotated to an outward display mode, the light splitting module corresponding to the other display module separates the light source of the other display module into two light beams which are emitted through the viewing inner side;

or, the head-mounted display device comprises a display module rotatably arranged on the body, a display module fixedly arranged on the body and a light splitting module, wherein the light splitting module is used for splitting a light source of the display module fixedly arranged on the body into two paths of light beams emergent from the viewing inner side when a display surface of the display module rotatably arranged on the body is rotated to an outward display mode;

the body is further provided with a converging lens which is arranged on the watching outer side and corresponds to the rotating display module, the converging lens is arranged on one side of the body, which is provided with an opening, the opening is arranged at the two side ends of the body, and the converging lens is used for magnifying the display content of the display surface when the display surface of the display module faces the watching outer side.

2. The head-mounted display device of claim 1, wherein the viewing outer side comprises an opening corresponding to the display module for emitting a light source providing a display surface in an external display mode.

3. The head-mounted display device according to claim 1 or 2, further comprising a control module for controlling the light-splitting module to split the light source of the display module into two light beams exiting through the viewing inner side when the display surface of the display module is turned to the outward display mode, and for controlling the light-splitting module to jump up to not split the light source of the display module when the display surface of the display module is turned to the inward display mode.

4. The head-mounted display device according to claim 1 or 2, wherein the head-mounted display device further comprises an optical module corresponding to the display module, and the optical module is configured to project a light source provided by the display surface out of the enlarged virtual image according to a preset light path.

5. The head-mounted display device of claim 4, wherein the optical module is further configured to emit the two light beams split by the light splitting module through the viewing inner sides respectively.

6. The head-mounted display device of claim 1 or 2, wherein the display module is rotatably disposed on the body through a rotation shaft.

7. The head-mounted display device of claim 6, wherein the rotation axes are respectively disposed at two opposite sides of the display module.

8. The head-mounted display device of claim 7, wherein the two rotation shafts disposed on the display module are coaxially disposed, and the display module is axisymmetric with respect to the axis.

9. The head-mounted display apparatus of claim 6, wherein the hinge is provided with a through hole for passing a signal line connected to the display module.

10. The head-mounted display device according to any one of claims 1 or 2, wherein the head-mounted display device further comprises a processor electrically connected to the display module, an earphone electrically connected to the processor, and a speaker, wherein the processor is configured to control the audio signal to be played through the earphone in the internal display mode and to control the audio signal to be played through the speaker in the external display mode.

11. The head-mounted display apparatus of claim 10, wherein the head-mounted display apparatus further comprises a rotation sensor electrically connected to the processor, the rotation sensor is configured to detect a status of the display module and generate a detection signal when detecting that the display module is switched to an external display mode, and the processor is configured to control an audio signal to be played through the speaker when receiving the detection signal.

12. The head-mounted display device of claim 1 or 2, wherein the head-mounted display device further comprises at least one latch assembly; the at least one locking assembly is arranged on the display module which is rotatably arranged and used for locking the display module which is rotatably arranged so as to keep an inward display mode or an outward display mode.

13. A head-mounted display device as claimed in claim 1 or 2, wherein an edge of the at least one pivotally arranged display module is provided with an operating component for providing a pivoting operation for operating the display module.