Head-mounted equipment and head display device thereof

Abstract

The invention provides head-mounted equipment and a head display device thereof. The head display device comprises an adjusting assembly, a first display assembly and a second display assembly. The adjusting assembly comprises a mounting bracket, a driving motor, a first lead screw and a second lead screw; the driving motor is fixedly arranged on the mounting bracket; the first lead screw and the second lead screw are respectively connected with the driving motor and can rotate under the driving of the driving motor; the first display assembly is in threaded connection with the first lead screw, and the second display assembly is in threaded connection with the second lead screw. The first display assembly and the second display assembly can be driven by the driving motor to get close to each other or get away from each other. According to the head display device provided by the embodiment of the invention, the driving motor is used for driving the two lead screws to rotate, so that the distance between the first display assembly and the second display assembly is adjusted (namely, the pupil distance is adjusted), and the head display device has the characteristics of simple and reliable structure, convenience in control and high adjustment precision.

Description

Technical Field

[0001] This application relates to the technical field of head-mounted devices, and specifically relates to a head-mounted device and a head display device thereof. Background Art

[0002] With the continuous maturity of VR (Virtual Reality) and MR (Mixed Reality) technologies, more and more people begin to use head-mounted devices with VR or MR functions for work, entertainment or social activities, and people's requirements for head-mounted devices are also getting higher and higher. Currently, most head-mounted devices display images through the installed display module. Considering the differences in the interpupillary distances of different users, the display module is generally movable so that users can adjust the position of the display module.

[0003] Everyone's interpupillary distance is different, generally ranging from 57 to 72 mm. Currently, the optics of VR / MR device head displays are binocular displays. If the human eyes, lenses and the center of the screen are not aligned, it will cause the two eyes of a person not to fall on the eyebox (the area where the displayed content is clearest), resulting in image distortion or blurring. At the same time, it will also cause physiological discomfort to the human eyes and even damage eyesight. The ideal state is that the human eyes, optical lenses and the screen are on the same central axis. Since everyone's interpupillary distance is different, therefore, VR / MR head displays need to support the interpupillary distance adjustment function to adapt to different users.

[0004] However, there is no structural scheme for interpupillary distance adjustment in conventional technical solutions that can achieve simple structure, convenient control and high adjustment accuracy. Summary of the Invention

[0005] In the first aspect of the embodiments of this application, a head display device is provided. The head display device includes an adjustment component, a first display component, and a second display component;

[0006] The adjustment component includes: a mounting bracket, a driving motor, a first lead screw, and a second lead screw;

[0007] The driving motor is fixedly arranged on the mounting bracket, and the first lead screw and the second lead screw are respectively connected to the driving motor and can rotate under the drive of the driving motor;

[0008] The first display component is screwed to the first lead screw, and the second display component is screwed to the second lead screw; the first display component and the second display component can approach or move away from each other under the drive of the driving motor.

[0009] Second aspect, an embodiment of the present application provides a head-mounted device, which includes a headband device and the head-mounted display device described in the above embodiments. The headband device is connected to the head-mounted display device and encloses to form a head-wearing space.

[0010] The head-mounted display device provided by the embodiment of the present application drives two lead screws to rotate by using a driving motor, and then adjusts the distance between the first display component and the second display component (that is, realizes the adjustment of the interpupillary distance), and has the characteristics of simple and reliable structure, convenient control and high adjustment accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0012] Figure 1 is a schematic diagram of the overall structure of an embodiment of the head-mounted device provided by the embodiment of the present application;

[0013] Figure 2 is Figure 1 a schematic diagram of the structure of the head-mounted display device in

[0014] Figure 3 is a schematic diagram of the structure of the head-mounted display device from another perspective in the embodiment of the present application;

[0015] Figure 4 is Figure 3 a schematic diagram of the partial structure of the head-mounted display device in the embodiment;

[0016] Figure 5 is Figure 3 a schematic diagram of the structure of the first display component and the second display component in another position state in the embodiment;

[0017] Figure 6 is Figure 4 a schematic diagram of the split structure in the embodiment;

[0018] Figure 7 is a schematic diagram of the structure of the head-mounted display device of the present application from another perspective;

[0019] Figure 8 is a schematic diagram of the structure of the head-mounted display device of the present application from yet another perspective. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be specifically noted that the following embodiments are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following embodiments are only partial embodiments of the present application rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present application.

[0021] The terms "first", "second", and "third" in the embodiments of the present application are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", and "third" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. The terms "include" and "have" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or components inherent to these processes, methods, products, or devices.

[0022] Referring to "embodiments" herein means that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0023] This application describes a head-mounted device, which can be a virtual reality device, such as a virtual reality headset, etc. Among them, the head-mounted device can be configured to transmit data to an external processing device and receive data from the external processing device through a signal connection, and the signal connection can be a wired connection, a wireless connection, or a combination thereof. However, in other cases, the head-mounted device can be used as a stand-alone device, that is, data processing is performed within the head-mounted device itself. The signal connection can be configured to carry any kind of data, such as image data (e.g., still images and / or full-motion videos, including 2D and 3D images), audio, multimedia, voice, and / or any other type of data. The external processing device can be, for example, a game console, a personal computer, a tablet computer, a smart phone, or other types of processing devices. The signal connection can be, for example, a Universal Serial Bus (USB) connection, a Wi-Fi connection, a Bluetooth or Bluetooth Low Energy (BLE) connection, an Ethernet connection, a cable connection, a DSL connection, a cellular connection (e.g., 3G, LTE / 4G, or 5G), etc., or a combination thereof. Additionally, the external processing device can communicate with one or more other external processing devices via a network, and the network can be or include, for example, a Local Area Network (LAN), a Wide Area Network (WAN), an intranet, a Metropolitan Area Network (MAN), the global Internet, or a combination thereof. Smart devices such as AR, VR, XR, MR, etc. are all head-mounted devices configured with cellular communication modules.

[0024] Please refer to Figure 1 and Figure 2 , Figure 1 which is a schematic diagram of the overall structure of an embodiment of the head-mounted device provided by an embodiment of this application. Figure 2 It is Figure 1 a schematic diagram of the structure of the head-mounted display device in ; It should be noted that the head-mounted device in this application can include head-mounted display devices such as AR (augmented reality), VR (virtual reality), and MR (mixed reality). The head-mounted device 10 can be worn on the user's head and has the function of being able to display images in front of the user's eyes, such as virtual reality or mixed reality, etc. As Figure 1 shown, the head-mounted device 10 includes: a head-mounted display device 100 and a headband device 200. Among them, the head-mounted display device 100 is connected to the headband device 200, and the headband device 200 also encloses a head-wearing space 1000 for the user to wear. The user can wear the head-mounted display device 100 in front of the eyes through the headband device 200, and the head-mounted display device 100 can form an image in front of the user's eyes to achieve the functions of virtual reality or augmented reality. At the same time, the head-mounted display device 100 can also adjust the imaging position according to the user's pupil distance, so that users with different pupil distances can all use the head-mounted display device 100, thereby improving the versatility of the head-mounted device 10.

[0025] Please refer to Figure 2 , Figure 3 andFigure 4 , Figure 3 is a schematic structural diagram of another perspective of the head-mounted device in the embodiments of the present application, Figure 4 and Figure 3 is a schematic partial structural diagram of the head-mounted device in the embodiments. The head-mounted device 100 includes: a housing assembly 110, a face mask 120, an adjustment assembly 130, and a display assembly 140. Among them, various functional devices (including cameras, circuit boards, laser emitters, inertial sensors, and antennas, etc.) required for installing the head-mounted device 10 can be installed in the housing assembly 110, and it can be connected to the headband device 200, so that the user can wear the head-mounted device 100 in front of the eyes through the headband device 200. The face mask 120 is connected to the housing assembly 110 and is located between the housing assembly 110 and the eyes, realizing the functions of blocking and cushioning and fitting the user's face.

[0026] Optionally, the display assembly 140 is used for imaging and display, and specifically may include structures such as lenses and display screens. The detailed features of this part are within the understanding of those skilled in the art and will not be elaborated here. Among them, the display assembly 140 in the embodiments of the present application includes a first display assembly 141 and a second display assembly 142.

[0027] Please continue to refer to Figure 4 , optionally, the adjustment assembly 130 in the embodiments of the present application includes: a mounting bracket 131, a driving motor 132, a first lead screw 133, and a second lead screw 134. Specifically, the driving motor 132 can be fixedly arranged on the mounting bracket 131 through a mounting base 1320, and the first lead screw 133 and the second lead screw 134 are connected to the mounting bracket 131 through a fixing base 1301.

[0028] Optionally, the first lead screw 133 and the second lead screw 134 are respectively connected to the driving motor 132 and can rotate driven by the driving motor 132; among them, the first display assembly 141 is screwed to the first lead screw 133, specifically, it can be screwed to the first lead screw 133 through two first lugs 1410 with internal threads; the second display assembly 142 is screwed to the second lead screw 134, specifically, it can be screwed to the second lead screw 134 through two second lugs 1420 with internal threads; the first display assembly 141 and the second display assembly 142 can approach or move away from each other in the arrow direction driven by the driving motor 132, thereby realizing the adjustment of the interpupillary distance L. Please refer to Figure 3 and Figure 5 , Figure 5 and Figure 3 is a schematic structural diagram of another position state of the first display assembly and the second display assembly in the embodiments. Among them, Figure 3 the interpupillary distance in Figure 5The interpupillary distance therein is L2. The technical solution in the embodiment of the present application can achieve stepless adjustment of the interpupillary distance between L1 and L2, so that the head-mounted device can be suitable for users with different interpupillary distances.

[0029] Optionally, please refer to Figure 4 and Figure 6 , Figure 6 is Figure 4 a schematic diagram of the disassembly of the structure in the embodiment. Among them, the adjustment component 130 in this embodiment further includes a gear set 135, and the gear set 135 is respectively connected to the drive motor 132 and the first lead screw 133 and the second lead screw 134. Optionally, in this embodiment, the gear set 135 includes a first bevel gear 1351, a second bevel gear 1352 and a third bevel gear 1353. The first bevel gear 1351 is fixedly arranged at one end of the first lead screw 133, the second bevel gear 1352 is fixedly arranged at one end of the second lead screw 134, and the third bevel gear 1353 is fixedly arranged at the output end of the drive motor 132. The third bevel gear 1353 meshes with the first bevel gear 1352 and the second bevel gear 1352 at the same time.

[0030] Optionally, please continue to refer to Figure 4 , the first display component 141 and the second display component 142 in this embodiment are symmetrically arranged with respect to the axis line of the output shaft of the drive motor 132 ( Figure 4 the X line in

[0031] Please continue to refer to Figure 4 and Figure 6 , the adjustment component 130 in this embodiment further includes a guide rod 136. Among them, the guide rod 136 can be one or two. The guide rod 136 can be arranged parallel to at least one of the first lead screw 133 and the second lead screw 134. The first display component 141 and the second display component 142 are slidably connected to the guide rod 136. Optionally, in this embodiment, the guide rod 136 includes a first guide rod 1361 and a second guide rod 1362. The first guide rod 1361 is arranged parallel to the first lead screw 133, and the second guide rod 1362 is arranged parallel to the second lead screw 134. The first display component 141 can be slidably connected to the first guide rod 1361 through two first convex rings 1411, and the second display component 142 can be slidably connected to the second guide rod 1362 through two second convex rings 1421. By setting the guide rod structure, the guiding of the first display component 141 and the second display component 142 can be realized, and the first lead screw 133 and the second lead screw 134 can be protected.

[0032] When the third bevel gear 1353 driven by the drive motor 132 rotates clockwise, the first bevel gear 1351 on the left meshing with it rotates outward, and the second bevel gear 1352 on the right meshing with it rotates inward. Similarly, in the reverse direction. Therefore, the first display component 141 and the second display component 142 can be moved synchronously inward or outward. Among them, operation buttons or sensors can be arranged on the outer side of the housing component 110 of the head-mounted device 100 to control the start and stop of the drive motor 132, thereby adjusting the increase or decrease of the interpupillary distance and adjusting the interpupillary distance to a comfortable and clear distance for the user.

[0033] Optionally, please refer to Figure 7 , Figure 7 is a schematic structural diagram of another perspective of the head-mounted device of the present application. Among them, the first display component 141 in this embodiment has a first display plane 1401, and the second display component 142 has a second display plane 1402. The first display plane 1401 intersects with the second display plane 1402, that is, the first display plane 1401 and the second display plane 1402 are not coplanar; optionally, in this embodiment, the angle a formed by the intersection of the first display plane 1401 and the second display plane 1402 is 160° to 170°. Among them, the axis Z1 of the first lead screw 133 is parallel to the first display plane 1401, and the axis Z2 of the second lead screw 134 is parallel to the second display plane 1402. That is, the angle b1 between the first lead screw 133 and the mounting bracket 131 is 5° to 10°, and the angle b2 between the second lead screw 134 and the mounting bracket 131 is 5° to 10°. In this embodiment, by setting the first display component 141 and the second display component 142 to form a structure with a deflection angle, the viewing angle of the display component can be increased and it can better suit the visual characteristics of the human eye.

[0034] Optionally, please continue to refer to Figure 7 , the head-mounted device 100 in this embodiment further includes a control circuit board 150, and the control circuit board 150 can be fixed on the side of the mounting bracket 131 facing away from the first display component 141 and the second display component 142. The control circuit board 150 is used to connect with the drive motor 132 and other devices to realize the control of functions such as interpupillary distance adjustment.

[0035] Please refer to Figure 8 , Figure 8 is a schematic structural diagram of yet another perspective of the head-mounted device of the present application. Optionally, the adjustment component 130 in this embodiment further includes a first guide plate 137 and a second guide plate 138. The first guide plate 137 is arranged on the side of the first display component 141 away from the first lead screw 133, and the second guide plate 138 is arranged on the side of the second display component 142 away from the second lead screw 134; among them, the first guide plate 137 and the second guide plate 138 can be an integral structure with the mounting bracket 131.

[0036] Optionally, a first guiding groove 1371 is provided on the first guiding plate 137 in this embodiment. The extending direction of the first guiding groove 1371 is parallel to that of the first guiding rod 1361. A second guiding groove 1381 is provided on the second guiding plate 138. The extending direction of the second guiding groove 1381 is parallel to that of the second guiding rod 1362. The first display component 141 is provided with a first sliding portion 1413. The first sliding portion 1413 is inserted into the first guiding groove 1371 and can slide along the first guiding groove 1371. The second display component 142 is provided with a second sliding portion 1423. The second sliding portion 1423 is inserted into the second guiding groove 1381 and can slide along the second guiding groove 1381. By arranging the structure of the guiding plate, the head-mounted display device in this embodiment can guide the first display component 141 and the second display component 142, and guide them with the guiding rods from the opposite sides of the first display component 141 and the second display component 142 respectively, so as to achieve the balance and stability of the structure.

[0037] The head-mounted display device provided by the embodiment of the present application drives two lead screws to rotate by using a driving motor, and then adjusts the distance between the first display component and the second display component (that is, realizes the adjustment of the interpupillary distance), and has the characteristics of simple and reliable structure and assembly process, convenient control and high adjustment accuracy.

[0038] The above are only some embodiments of the present application, and thus do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A head-mounted display device, characterized in that, The head-mounted display device includes an adjustment component, a first display component, and a second display component; The adjustment component includes: a mounting bracket, a driving motor, a first lead screw, and a second lead screw; The driving motor is fixedly arranged on the mounting bracket, and the first lead screw and the second lead screw are respectively connected to the driving motor and can rotate under the drive of the driving motor; The first display component is screwed to the first lead screw, and the second display component is screwed to the second lead screw; the first display component and the second display component can approach or move away from each other under the drive of the driving motor.

2. The head-mounted display device according to claim 1, wherein The adjustment component further includes a gear set, and the gear set is respectively connected to the driving motor, the first lead screw, and the second lead screw.

3. The head-mounted display device according to claim 2, wherein The gear set includes a first bevel gear, a second bevel gear, and a third bevel gear. The first bevel gear is fixedly arranged at one end of the first lead screw, the second bevel gear is fixedly arranged at one end of the second lead screw, and the third bevel gear is fixedly arranged at the output end of the driving motor. The third bevel gear meshes with the first bevel gear and the second bevel gear at the same time.

4. The head-mounted display device according to claim 3, wherein The first display component and the second display component are symmetrically arranged with respect to the axis of the output shaft of the driving motor.

5. The head-mounted display device according to claim 1, wherein The adjustment component further includes a guide rod, and the guide rod is arranged parallel to the first lead screw and / or the second lead screw. The first display component and / or the second display component is slidably connected to the guide rod.

6. The head-mounted display device according to claim 5, wherein The guide rod includes a first guide rod and a second guide rod. The first guide rod is arranged parallel to the first lead screw, the second guide rod is arranged parallel to the second lead screw. The first display component is slidably connected to the first guide rod, and the second display component is slidably connected to the second guide rod.

7. The head-mounted display device according to claim 1, wherein The first display component has a first display plane, and the second display component has a second display plane. The first display plane intersects with the second display plane; the axis of the first lead screw is parallel to the first display plane, and the axis of the second lead screw is parallel to the second display plane.

8. The head-mounted display device according to claim 7, wherein The included angle formed by the intersection of the first display plane and the second display plane is 160° to 170°.

9. The head-mounted display device according to claim 6, wherein The adjustment component further includes a first guide plate and a second guide plate. The first guide plate is arranged on the side of the first display component away from the first lead screw, and the second guide plate is arranged on the side of the second display component away from the second lead screw; The first guide plate is provided with a first guide groove, and the extending direction of the first guide groove is parallel to the first guide rod; the second guide plate is provided with a second guide groove, and the extending direction of the second guide groove is parallel to the second guide rod; the first display component is provided with a first sliding portion, and the first sliding portion is inserted into the first guide groove and can slide along the first guide groove. The second display component is provided with a second sliding portion, and the second sliding portion is inserted into the second guide groove and can slide along the second guide groove.

10. A head-mounted device, characterized in that, The head-mounted device includes a headband device and the head-mounted display device according to any one of claims 1-9. The headband device is connected to the head-mounted display device and encloses to form a head-wearing space.

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