Head-mounted display device and mask adaptive adjustment method

Abstract

The invention discloses a head-mounted display device and a mask adaptive adjustment method, and the head-mounted display device comprises a mask, a driving device and a host. The mask comprises a gasket and a support, and the gasket is connected to the support. The driving device is connected to the support, and a driving part of the driving device is connected to the gasket. The host is connected with the end, away from the gasket, of the support, a gap is formed between the gasket and the host, the host comprises a main control module and an image acquisition device, and the image acquisition device is electrically connected with the main control module and used for acquiring image data of the face; the main control module is electrically connected with the driving device and used for controlling the driving part of the driving device to move according to the image data so as to drive at least part of the gasket to get close to or get away from the host through the driving part. According to the head-mounted display equipment provided by the invention, the shape of the gasket can be automatically adjusted when the mask and the host are in an assembled state, so that the shape of the gasket can adapt to the faces of different users, it is guaranteed that all positions of the gasket can be attached to the faces, light leakage is avoided, and the use experience and the wearing comfort level are improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a head-mounted display device and a mask adaptive adjustment method. Background Art

[0002] With the rise of the metaverse, VR / MR head-mounted display devices are gaining increasing attention. However, existing head-mounted display devices generally suffer from wearing comfort issues. In particular, the compatibility of the head-mounted display mask with the face shape is a major factor affecting wearing comfort. If the mask does not match the face shape, it not only reduces the user's wearing comfort, but also easily causes light leakage and affects the distance between the lens and the eye, resulting in a poor user experience.

[0003] In order to solve the problem of matching the mask with the face shape in the existing technology, masks are generally customized for users with different face shapes, and the masks are assembled on the equipment to be worn. This will result in high development costs for the masks and cumbersome assembly and wearing operations. Summary of the Invention

[0004] In view of this, the present application provides a head-mounted display device and a mask adaptive adjustment method to solve the problem in the above-mentioned prior art that the mask on the head-mounted display device is difficult to match different face shapes.

[0005] In a first aspect, an embodiment of the present application provides a head-mounted display device, which includes: a mask, a drive device and a host. The mask includes a gasket and a bracket, and the gasket is connected to the bracket. The drive device is connected to the bracket, and the drive unit of the drive device is connected to the gasket. The host is connected to an end of the bracket away from the gasket, and there is a distance between the gasket and the host. The host includes a main control module and an image acquisition device, and the image acquisition device is electrically connected to the main control module, and the image acquisition device is used to collect facial image data; the main control module is electrically connected to the drive device, and the main control module is used to control the movement of the drive unit of the drive device according to the image data, so as to drive at least part of the gasket to move closer to or away from the host through the drive unit.

[0006] The head-mounted display device provided by the present application has an image acquisition device that can acquire three-dimensional image data of the user's face and transmit it to the main control module. The main control module can process and analyze the image data and obtain the size data of the user's face. Based on the size data, a signal can be sent to the drive device to control the operation of the drive device. The drive unit of the drive device drives the local position of the gasket to move toward or away from the host, thereby realizing automatic adjustment of the gasket shape, so that the shape of the gasket can adapt to the user's face, ensuring that all positions of the gasket can fit the face, avoiding light leakage, and improving the user experience and wearing comfort. In addition, since the main control module located in the host needs to transmit signals to the drive device to control the operation of the drive device, the mask and the host need to be connected in the form of an electrical connection so that the shape of the gasket in the mask can be adjusted when the mask and the host are assembled, thereby eliminating the need for repeated disassembly and adjustment of the mask, facilitating operation and improving the user experience.

[0007] In one possible implementation, the host is provided with a first connection terminal, which is electrically connected to the main control module. The bracket is provided with a second connection terminal, which is electrically connected to the drive device. The main control module is electrically connected to the drive device through the cooperation of the first connection terminal and the second connection terminal. The host is mechanically connected to the bracket through the cooperation of the first connection terminal and the second connection terminal. Thus, the first connection terminal and the second connection terminal can realize both the electrical connection between the main control module and the drive device and the mechanical connection between the bracket and the host, which facilitates the assembly and function realization between the mask and the host and improves the user experience.

[0008] In one possible implementation, both the first and second connection terminals are magnetic conductive terminals. Together, they form a magnetic connector that provides a reliable connection and fixation between the mask and the main unit, while also achieving an effective electrical connection between the main control module and the drive device. This facilitates assembly and disassembly of the mask and the main unit, enhancing the user experience.

[0009] In one possible implementation, the head-mounted display device further includes a transmission line connected to the bracket, one end of the transmission line being electrically connected to the first connection terminal, and the other end of the transmission line being electrically connected to the drive device. The transmission line can electrically connect a remote drive device and the first connection terminal, thereby facilitating a more flexible placement of the drive device. The transmission line can be secured to the surface of the bracket using glue, tape, or the like to reduce space occupation while maintaining a stable fixed state and preventing movement.

[0010] In one possible implementation, the head-mounted display device further includes a pressure detection device, which is connected to the gasket and electrically connected to the main control module, and is used to collect local pressure data between the gasket and the face.

[0011] Among them, when the user wears the head-mounted display device, the gasket can be pressed against the face. At this time, the pressure detection device can detect the pressure data at the position where the pressure detection device is set on the gasket. The pressure detection device can transmit the pressure data to the main control module. The main control module can determine whether the pressure data meets the preset pressure range. If it meets the preset pressure range, there is a suitable squeezing force between the position where the pressure detection device is set on the gasket and the face, which can enable the user's face to have a better wearing experience; if it does not meet the preset pressure range, the main control module can control the corresponding driving device to move to adjust the shape of the corresponding position on the gasket, and then adjust the squeezing force between the gasket and the face so that the pressure data meets the preset pressure range.

[0012] In a possible implementation, the mask further includes a seal connected to a side of the gasket facing away from the host, and the pressure detection device is disposed between the seal and the gasket.

[0013] The seal can enclose the pressure detection device between the seal and the gasket, thereby protecting the pressure detection device and improving the appearance of the head-mounted display device. In addition, the seal has a certain degree of elasticity and can have a shape similar to the gasket. When the head-mounted display device is worn, the seal can directly contact the face. When the seal is squeezed by the face, it can undergo slight elastic deformation, thereby ensuring a reliable fit between the seal and the face and avoiding light leakage caused by a gap between the seal and the face.

[0014] In a possible implementation, the mask further includes an elastic cloth, the elastic cloth is wrapped around the bracket, and the elastic cloth is connected to the gasket.

[0015] Among them, the elastic cloth is located on the side of the gasket facing the host, and can be bonded to the gasket by glue to ensure that the elastic cloth and the gasket maintain a reliable connection state. When a part of the gasket is driven by the driving device to move and deform in the direction away from the host, the elastic cloth can also undergo corresponding elastic deformation as the gasket moves and deforms due to its own elastic deformation ability. At this time, the elastic cloth can generate a traction force on the gasket toward the host side. The traction force can alleviate the risk of breakage caused to the gasket at the stretched position of the gasket, which is beneficial to extending the service life of the gasket. In addition, the elastic cloth can also have a shading effect. The elastic cloth can cover the entire bracket, which can avoid light leakage when worn and enhance the immersive experience. At the same time, it can also improve the appearance of the head-mounted display device.

[0016] In one possible implementation, the drive device is a motor, including a drive shaft, which serves as the drive unit. When the motor is activated, the drive shaft can translate axially to drive the gasket to move synchronously. The use of a motor facilitates assembly and disassembly of the bracket, making operation more convenient. Furthermore, the motor can be compact, saving space within the mask.

[0017] In one possible implementation, the driving portion and the gasket are bonded by glue; and / or, the driving portion and the gasket are connected by a connector, thereby ensuring that the driving portion and the gasket always remain connected, and when the driving portion moves in any direction, it can drive the gasket to move synchronously, that is, the driving portion can drive the gasket to deform in a direction away from the host, and can also drive the gasket to deform in a direction close to the host, so that the shape of the gasket can be adjusted in multiple directions, making the gasket more easily adaptable to the face sizes of different users.

[0018] In one possible implementation, the image acquisition device includes at least two cameras. By cooperating with the two or more cameras, three-dimensional data of the user's face can be obtained, such as the user's forehead arc length, face height, face width, eye socket depth, cheekbone depth, etc.

[0019] In a second aspect, the present application further provides a method for adjusting the shape of a mask in the head-mounted display device provided in the first aspect of the present application, comprising:

[0020] Obtaining facial image data;

[0021] Processing and analyzing the image to obtain facial dimension data;

[0022] According to the facial size data, a corresponding driving device is controlled to drive at least a portion of the gasket to move closer to or away from the host.

[0023] The adjustment method provided by the present application is that the main control module can send a control signal to the corresponding driving device according to the facial size data, so as to control the driving device to drive the corresponding part of the gasket to move and deform in the direction closer to or away from the host, thereby achieving the purpose of automatically adjusting the shape of the gasket, so that the shape of the gasket can adapt to the user's face, ensuring that all positions of the gasket can fit the face, avoiding light leakage, and improving the user experience and wearing comfort.

[0024] In one possible implementation, after controlling the corresponding driving device to drive at least a portion of the gasket toward or away from the host according to the facial size data, the method further includes:

[0025] detecting a local pressure between the gasket and the face, wherein the local pressure is the pressure generated when the gasket is in contact with the face at a location where the gasket is connected to the pressure detection device;

[0026] determining whether the local pressure is within a preset pressure range;

[0027] If yes, detecting the actual lens-to-eye distance between the host and the eyeball;

[0028] Determining whether the actual lens-to-eye distance matches a preset target lens-to-eye distance;

[0029] If the actual lens-to-eye distance does not match the target lens-to-eye distance, each driving device is controlled to drive the corresponding portion of the gasket to synchronously move closer to or away from the host.

[0030] Therefore, by controlling all the driving devices to move synchronously in the same direction, the gasket can be translated as a whole, while the overall shape of the gasket can be maintained almost unchanged, thereby ensuring that the gasket fits well with the face while achieving adjustment of the eyeglass eye distance.

[0031] In one possible implementation, if the determination of whether the local pressure is within a predetermined pressure range is negative, the corresponding driving device is repeatedly controlled to drive at least a portion of the gasket toward or away from the main unit. This allows for continuous pressure monitoring in real time and the gasket's shape to be automatically adjusted based on the pressure data to fit the face comfortably and enhance the user experience.

[0032] It should be understood that the foregoing general description and the following detailed description are merely illustrative and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. 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 any creative work.

[0034] Figure 1 A schematic diagram of the structure of a head-mounted display device provided in an embodiment of the present application;

[0035] Figure 2 A state diagram of the head-mounted display device provided in an embodiment of the present application in use;

[0036] Figure 3 A system block diagram of a head-mounted display device provided in an embodiment of the present application;

[0037] Figure 4 An exploded view of a head-mounted display device provided in an embodiment of the present application;

[0038] Figure 5 A schematic diagram of the cooperation between the mask and the drive device provided in an embodiment of the present application;

[0039] Figure 6 A schematic diagram illustrating the coordination between a bracket, a driving device, and a host provided in one embodiment of the present application;

[0040] Figure 7 A schematic diagram illustrating the coordination between a bracket, a driving device, and a host provided in another embodiment of the present application;

[0041] Figure 8 A schematic diagram illustrating the coordination between a bracket, a driving device, and a host provided in yet another embodiment of the present application;

[0042] Figure 9 A schematic diagram of the structure of the host provided in an embodiment of the present application;

[0043] Figure 10 A front view of a head-mounted display device provided in an embodiment of the present application;

[0044] Figure 11 An exploded view of a mask provided in an embodiment of the present application;

[0045] Figure 12 A flowchart of an adjustment method provided in one embodiment of the present application;

[0046] Figure 13 A flowchart of an adjustment method provided in another embodiment of the present application.

[0047] Reference numerals:

[0048] 1-Face mask;

[0049] 11-gasket;

[0050] 12-Stand;

[0051] 121- second connection terminal;

[0052] 2-Drive device;

[0053] 21- driving unit;

[0054] 22-machine base;

[0055] 3-Host;

[0056] 31-main control module;

[0057] 32-image acquisition device;

[0058] 321-Camera;

[0059] 33-first connecting terminal;

[0060] 34-lens;

[0061] 4- Transmission line;

[0062] 5-pressure detection device;

[0063] 6- Seals. DETAILED DESCRIPTION

[0064] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0065] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0066] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0067] It should be understood that the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the associated objects.

[0068] In the description of this application, unless otherwise specified or limited, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "plurality" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0069] With the rise of the concept of the metaverse, head-mounted display devices such as virtual reality (VR) and mixed reality (MR) have received increasing attention. However, existing head-mounted display devices generally have problems with wearing comfort, especially the matching of the head-mounted display device's mask with the face shape, which is the main factor affecting wearing comfort. The face sizes of different users vary greatly, and a single-size mask cannot fully meet the needs of a wide range of people. If the mask does not match the user's face shape, it will greatly reduce the user's wearing comfort, and it will also easily cause light leakage from the mask and affect the adaptation of the lens-eye distance, resulting in a poor immersive experience and viewing experience for the user. In order to meet the comfort requirements of different users when wearing, the existing technology generally customizes masks for users with different face shapes and assembles the masks to the device for wearing. This will result in a high development cost for the mask, and the assembly and wearing operations are also very cumbersome.

[0070] Figure 1 A schematic diagram of the structure of the head mounted display device provided in the embodiment of the present application is shown as follows: Figure 1 As shown, an embodiment of the present application provides a head-mounted display device, which can be used for but is not limited to the above-mentioned VR / MR devices. The head-mounted display device includes a mask 1, a drive device 2 and a host 3. The host 3 may include a housing, and various components may be integrated in the housing, such as a circuit board, a main control module, an image acquisition device, a lens 34, an optical device, etc. Figure 2 A state diagram of the head mounted display device in use provided in an embodiment of the present application, combined with Figure 1 and Figure 2 As shown, when a user wears the display device, the lens 34 can be opposite to the user's eyes, and the user can view images through the lens 34. Figure 3 A system block diagram of a head mounted display device provided in an embodiment of the present application, such as Figure 3As shown, the main control module 31 may include a system on chip (SOC). The image acquisition device 32 is electrically connected to the main control module 31. The image acquisition device 32 may include a camera module. The camera module can acquire image data of the target object. For example, the camera module can acquire user facial image data and transmit the image data to the main control module 31 in the form of an electrical signal. The main control module 31 can process and analyze the received image data to obtain the required data. For example, the main control module 31 processes and analyzes the facial image data to obtain facial dimension data. The dimension data may include forehead arc length, facial height, facial width, eye socket depth, cheekbone depth, etc.

[0071] Figure 4 An exploded view of a head mounted display device provided in an embodiment of the present application, such as Figure 4 As shown, the mask 1 may include a gasket 11 and a bracket 12. The gasket 11 is connected to the bracket 12. The end of the bracket 12 away from the gasket 11 is connected to the host 3, with a gap between the gasket 11 and the host 3. The gasket 11 is made of a flexible material and can deform accordingly when subjected to external force. When a user wears the head-mounted display device, the gasket 11 can contact the user's face and, through its own flexibility, conform to the face as closely as possible. The bracket 12 can be made of a hard material, such as hard plastic, and can support the overall structure of the mask 1, maintaining its overall shape. It can also be connected to the host 3 via the bracket 12, facilitating assembly of the mask 1 and the host 3. In one embodiment, to facilitate disassembly and maintenance of the mask 1 and the host 3, the mask 1 and the host 3 can be connected in a detachable manner, for example, by a connector.

[0072] Figure 5 This is a schematic diagram of the mask 1 and the driving device 2 provided in the embodiment of the present application, as shown in FIG. Figure 5 As shown, the driving device 2 can be connected to the bracket 12, and the driving device 2 can include a base 22 and a driving part 21. The base 22 can be fixed on the bracket 12 by screws or other connecting parts. The driving part 21 can be connected to the side of the gasket 11 facing the host 3. When the driving device 2 is started, the driving part 21 can be axially translated. For example, "axial" can be the installation direction when the mask 1 is installed on the host 3. The installation direction is Figure 4 In the X direction shown in FIG, the driving portion 21 can move along Figure 4 The X direction shown in FIG. 4 can also be used as an example. Figure 4There is a slight angle between the X-direction shown in FIG. , which is related to the installation posture of the drive unit 2 on the bracket 12. The specific angle value is not limited in this embodiment, as long as the drive unit 21 can drive the gasket 11 to move in a direction closer to or away from the main unit 3. Because the drive unit 21 is connected to the gasket 11, the drive unit 21 can drive the synchronous movement of the gasket 11 at the location where the drive unit 21 is connected, thereby causing the local location of the gasket 11 to deform to adapt to the size of the face. For example, the location where the drive unit 21 is connected to the gasket 11 can be opposite the user's cheekbone. For users with low cheekbones, the distance between the cheekbone and the main unit 3 is larger. The drive unit 21 can move away from the main unit 3, pushing the location of the gasket 11 near the drive unit 21 to arch away from the main unit 3. This allows the gasket 11 to conform to the skin at the user's cheekbone, improving wearing comfort while preventing light leakage at the cheekbone. Furthermore, for users with high cheekbones, the distance between the cheekbones and the main unit 3 is smaller, and the drive unit 21 can move toward the main unit 3 to pull the position of the gasket 11 near the drive unit 21 toward the main unit 3. This ensures that the gasket 11 fits the skin at the user's cheekbones while also reducing the excessive pressure on the skin at the user's cheekbones caused by the mask 1, thereby improving wearing comfort. Of course, in other embodiments, the position where the drive unit 21 connects to the gasket 11 can also be opposite to other parts of the user's face, such as the forehead or cheeks. The shape of the gasket 11 can be adjusted by the drive unit 2 in the above manner according to the height of the forehead and the fatness of the cheeks, so that the mask can be adapted to the face of different users. This embodiment will not further illustrate this. In one embodiment, the drive unit 2 can be a motor, such as a linear stepper motor, which includes a drive shaft, which is the drive unit 21 of the aforementioned drive unit 2. When the motor is started, the drive shaft can translate axially to drive the gasket 11 to move synchronously. By adopting a motor, it is easy to assemble and disassemble the bracket 12 and convenient to operate. At the same time, the motor can have a smaller volume, which is conducive to saving space in the mask 1.

[0073] Among them, the main control module 31 (such as Figure 3The main control module 31 can control the movement of the driving portion 21 of the driving device 2 according to the image data, so as to drive at least part of the gasket 11 toward or away from the host 3 through the driving portion 21. In one embodiment, the image acquisition device 32 can capture three-dimensional image data of the user's face and transmit it to the main control module 31. The main control module 31 can process and analyze the image data and obtain dimensional data of the user's face. Based on the dimensional data, the main control module 31 can send a signal to the driving device 2 to control the operation of the driving device 2. The driving portion 21 of the driving device 2 drives the position of the gasket 11 close to the driving portion 21 to move toward or away from the host 3, thereby achieving automatic adjustment of the shape of the gasket 11, so that the shape of the gasket 11 can adapt to the user's face, ensuring that all positions of the gasket 11 can fit the face, avoiding light leakage, and improving the user experience and wearing comfort. In addition, since the main control module 31 located in the host 3 needs to transmit signals to the driving device 2 to control the operation of the driving device 2, the mask 1 and the host 3 need to be electrically connected so that the shape of the gasket 11 in the mask 1 can be adjusted when the mask 1 and the host 3 are assembled, thereby eliminating the need to repeatedly disassemble and adjust the mask 1, facilitating operation and improving the user experience.

[0074] It should be noted that when a portion of the gasket 11 is deformed by the drive device 2 in a direction away from the main unit 3, the deformed portion of the gasket 11 (i.e., the portion of the gasket 11 close to the drive device 2) will be stretched in a direction away from the main unit 3. This stretching can easily cause the gasket 11 to break at the stretched portion. To this end, in one possible implementation, the mask 1 may further include an elastic cloth (not shown in the figure), which can be wrapped around the bracket 12 and connected to the gasket 11. The elastic cloth can be located on the side of the gasket 11 facing the main unit 3 and can be bonded to the gasket 11 to ensure that the elastic cloth and the gasket 11 maintain a reliable connection. When a portion of the gasket 11 is driven by the drive device 2 to move and deform in a direction away from the host 3, the elastic cloth can also undergo corresponding elastic deformation as the gasket 11 moves and deforms due to its own elastic deformation ability. At this time, the elastic cloth can generate a pulling force on the gasket 11 toward the side of the host 3. This pulling force can reduce the risk of gasket 11 breaking at the stretched position, which is conducive to extending the service life of the gasket 11. In addition, the elastic cloth can also have a light-shielding effect. The elastic cloth can cover the entire bracket 12, which can prevent light leakage when worn, enhance the immersive experience, and at the same time, improve the appearance of the head-mounted display device.

[0075] In a possible implementation, one or more driving devices 2 may be provided, and the one or more driving devices 2 may be distributed at corresponding positions of the gasket 11 according to the parts of the gasket 11 that need to be adjusted.

[0076] For example, Figure 6 A schematic diagram of the cooperation between the bracket 12, the drive device 2 and the host 3 provided in one embodiment of the present application is shown as follows: Figure 6 As shown, the driving device 2 can be provided with one, and the driving device 2 can be provided at a position on the gasket 11 opposite to the user's forehead, so that the shape of the position on the gasket 11 corresponding to the forehead can be adjusted by the driving device 2. Figure 2 In the upright wearing posture shown by the user, the position on the gasket relative to the user's forehead can be the middle position above the gasket. The driving device 2 at this position can achieve almost consistent deformation of the gasket in the direction close to the user's left eye and right eye, thereby ensuring that the user's forehead above the left eye and right eye feels consistent when in contact with the gasket, thereby improving the wearing experience.

[0077] For example, Figure 7 A schematic diagram of the cooperation between the bracket 12, the drive device 2 and the host 3 provided in another embodiment of the present application is shown as follows: Figure 7 As shown, three driving devices 2 can be provided, one driving device 2 can be provided at a position on the gasket that is opposite to the user's forehead, and the other two driving devices 2 can be provided at positions on the gasket that are opposite to the user's cheekbones, so that the shape of the gasket at the position corresponding to the forehead or the shape of the gasket at the position corresponding to the cheekbones can be adjusted by the corresponding driving devices 2. For example, based on Figure 2 In the illustrated upright wearing posture, the position on the gasket opposite the user's cheekbone can be the lower portion of the gasket. In one embodiment, the position on the gasket opposite the user's cheekbone can be the lower portion of the gasket near the lowest point of the gasket. During wearing, the lower portion of the gasket is closer to the user's cheekbone. By positioning the portion of the drive device 2 below the gasket, the position on the gasket opposite the cheekbone can better conform to the skin at the user's cheekbone.

[0078] For example, Figure 8 A schematic diagram of the cooperation between the bracket 12, the driving device 2 and the host 3 provided in another embodiment of the present application is shown as follows: Figure 8 As shown, there can be five drive devices 2, one of which can be set at a position on the gasket opposite to the user's forehead, two of which can be set at positions on the gasket opposite to the user's cheekbones, and the remaining two can be set at positions on the gasket opposite to the user's cheeks. Thus, the shape of the gasket at the position corresponding to the forehead, or the shape of the gasket at the position corresponding to the cheekbones, or the shape of the gasket at the position corresponding to the cheeks can be adjusted by the corresponding drive devices 2. For example, based on Figure 2In the upright wearing posture shown by the user, the position on the gasket opposite to the user's cheek can be the position on the left and right side of the gasket, wherein the left position of the gasket can be the position on the gasket located on the left side of the user's left eye when worn, and the right position of the gasket can be the position on the gasket located on the right side of the user's right eye when worn. By arranging part of the driving device 2 on the left and right sides of the gasket, it is beneficial for the position on the gasket opposite to the user's cheek to better adapt to the user's cheek skin.

[0079] Among them, in the case where there are multiple driving devices 2 mentioned above, the main control module 31 can independently control each driving device 2 so that each driving device 2 can operate independently, thereby ensuring that the shapes of the positions on the gasket corresponding to each driving device 2 can be independently adjusted to independently adapt to the corresponding parts of the user's face.

[0080] In a possible implementation, as described above, the image acquisition device 32 (eg Figure 3 As shown) can include a camera module, the camera module can include at least one camera 321, but since one camera 321 can only obtain a two-dimensional image, in order to obtain the three-dimensional size of the user area, at least two cameras 321 are required to cooperate. Therefore, in this embodiment, Figure 9 The schematic diagram of the structure of the host 3 provided in the embodiment of the present application is as follows: Figure 9 As shown, the image acquisition device 32 may include at least two cameras 321. For example, the number of cameras 321 may be 2, 3, 4, 5, 6, 7, 8, etc. These cameras 321 may be evenly distributed on the host 3 corresponding to the user's eyes. For example, Figure 9 As shown, when there are eight cameras 321, the cameras 321 can be symmetrically distributed on the host 3. For example, four of the cameras 321 can be set at positions on the host 3 corresponding to the user's left eye, and the remaining four cameras 321 can be set at positions on the host 3 corresponding to the user's right eye. By coordinating two or more cameras 321, three-dimensional data of the user's face can be obtained, such as the user's forehead arc length, facial height, facial width, eye socket depth, cheekbone depth, etc.

[0081] In one possible implementation, Figure 5As shown, the driving portion 21 of the driving device 2 can be fixed to the gasket 11 by gluing, or the driving portion 21 can also be connected and fixed to the gasket 11 by a connecting piece such as a spring, so as to ensure that the driving portion 21 and the gasket 11 always remain in a connected state, and when the driving portion 21 moves in any direction, it can drive the gasket 11 to move synchronously, that is, the driving portion 21 can drive the gasket 11 to deform in a direction away from the host 3, and can also drive the gasket 11 to deform in a direction close to the host 3, so that the shape of the gasket 11 can be adjusted in multiple directions, making it easier for the gasket 11 to adapt to the face size of different users.

[0082] As described above, the main control module 31 in the host 3 needs to transmit signals to the driving device 2 to control the operation of the driving device 2. Therefore, the mask 1 and the host 3 need to be electrically connected so that the shape of the gasket 11 in the mask 1 can be adjusted when the mask 1 and the host 3 are assembled. In one possible implementation, Figure 9 As shown, the host 3 may be provided with a first connection terminal 33, and the first connection terminal 33 may be electrically connected to the main control module 31. Figure 5 As shown, the bracket 12 may be provided with a second connection terminal 121, and the second connection terminal 121 may be electrically connected to the driving device 2. The first connection terminal 33 and the second connection terminal 121 may be electrically connected, and then the main control module 31 may be electrically connected to the driving device 2 through the cooperation of the first connection terminal 33 and the second connection terminal 121. The first connection terminal 33 and the second connection terminal 121 may also be mechanically connected, and then the host 3 may be mechanically connected to the bracket 12 through the cooperation of the first connection terminal 33 and the second connection terminal 121. Thus, the first connection terminal 33 and the second connection terminal 121 can realize both the electrical connection between the main control module 31 and the driving device 2 and the mechanical connection between the bracket 12 and the host 3, thereby facilitating the assembly and function realization between the mask 1 and the host 3 and improving the user experience.

[0083] In one possible implementation, both the first connection terminal 33 and the second connection terminal 121 can be magnetic conductive terminals. The first connection terminal 33 and the second connection terminal 121 can together form a magnetic connector. Through this magnetic connector, a reliable connection and fixation between the mask 1 and the host 3 can be achieved, and an effective electrical connection between the main control module 31 and the drive device 2 can be achieved, which facilitates the assembly and disassembly operations between the mask 1 and the host 3 and improves the operating experience.

[0084] In one possible implementation, Figure 6As shown, the head-mounted display device also includes a transmission cable 4, which can be connected to the bracket 12. One end of the transmission cable 4 can be electrically connected to the second connection terminal 121, and the other end of the transmission cable 4 can be electrically connected to the drive device 2. The transmission cable 4 can enable electrical connection between the drive device 2 and the second connection terminal 121, which is relatively far away, facilitating more flexible placement of the drive device 2. The transmission cable 4 can be fixed to the surface of the bracket 12 using glue, tape, etc. to reduce space usage while maintaining a stable fixed state of the transmission cable 4 to prevent movement. In one possible implementation, the transmission cable 4 can be a wire or a flexible printed circuit (FPC). For example, when the transmission cable 4 is an FPC, the FPC can adapt to the shape of the bracket 12 through its own flexibility, allowing the FPC to conform to the surface of the bracket 12, thereby saving space within the bracket 12. The FPC can also be fixed to the surface of the bracket 12 using glue. The FPC has an integrated transmission circuit, and the drive device 2 and the second connection terminal 121 can be electrically connected via the transmission circuit within the FPC.

[0085] In one possible implementation, Figure 10 A front view of a head mounted display device provided in an embodiment of the present application is shown as follows: Figure 10As shown, the head-mounted display device may further include a pressure detection device 5. For example, the pressure detection device 5 may be a pressure sensor that can collect pressure data when under pressure. The pressure detection device 5 may be connected to the gasket 11, and the pressure detection device 5 is electrically connected to the main control module 31. The pressure detection device 5 is used to collect local pressure data between the gasket 11 and the face. In one embodiment, the pressure detection device 5 may be connected to the second connection terminal 121 via a transmission line 4, and may further be electrically connected to the main control module 31 through the cooperation of the first connection terminal 33 and the second connection terminal 121. When the user wears the head-mounted display device, the gasket 11 can be pressed against the face. At this time, the pressure detection device 5 can detect the pressure data at the position where the pressure detection device 5 is set on the gasket 11. The pressure detection device 5 can transmit the pressure data to the main control module 31. The main control module 31 can determine whether the pressure data meets the preset pressure range. If it meets the preset pressure range, there is a suitable squeezing force between the position where the pressure detection device 5 is set on the gasket 11 and the face, which can provide the user with a better wearing experience on the face. If it does not meet the preset pressure range, the main control module 31 can control the corresponding drive device 2 to adjust the shape of the corresponding position on the gasket 11, and then adjust the squeezing force between the gasket 11 and the face so that the pressure data meets the preset pressure range. For example, if the pressure data obtained by a pressure detection device 5 is greater than the maximum value of the preset pressure range, it means that the squeezing force between the position where the pressure detection device 5 is set on the gasket 11 and the face is too large, and the face will feel painful. At this time, the main control module 31 can control the corresponding driving device 2 to drive part of the gasket 11 to move and deform in the direction closer to the host 3, that is, to make the part of the gasket 11 with too much pressure between the face and the face slightly away from the face, thereby reducing the squeezing force between the gasket 11 and the face and avoiding discomfort on the face. For example, if the pressure data obtained by a pressure detection device 5 is less than the minimum value of the preset pressure range, it means that the position where the pressure detection device 5 is provided on the gasket 11 cannot be in close contact with the face, and light leakage may occur between the gasket 11 and the face, which will affect the immersive viewing experience. At this time, the main control module 31 can control the corresponding driving device 2 to drive part of the gasket 11 to move and deform in the direction away from the host 3, that is, to make the part of the gasket 11 with too little pressure between the face and the face slightly close to the face, so as to ensure that the gasket 11 can fit reliably with the face, avoid light leakage, and improve the user experience.

[0086] Among them, one or more pressure detection devices 5 can be provided. In one embodiment, when multiple pressure detection devices 5 are provided, the pressure detection devices 5 can be distributed at positions on the gasket 11 that have large differences in matching states with different faces. For example, the pressure detection devices 5 can be respectively provided at positions on the gasket 11 corresponding to the forehead, cheekbones, and cheeks of the user. In one embodiment, a pressure detection device 5 can be provided at almost every position on the gasket 11 corresponding to the face, and the distance between two adjacent pressure detection devices 5 is small, so that the distribution of the pressure detection devices 5 can be more dense, and the pressure detection between each position on the gasket 11 and the face can be achieved through each pressure detection device 5, which is conducive to improving the accuracy of the shape adjustment of the gasket 11 and achieving a better matching effect between the gasket 11 and the face. In one embodiment, the pressure detection device 5 can be provided at a position near the guide of the gasket 11 where the drive device 2 is connected. When the pressure data detected by one or more pressure detection devices 5 do not conform to the preset pressure range, it indicates that the position on the gasket 11 corresponding to the position where the pressure data does not conform to the preset pressure range needs to be adjusted in shape. The main control module 31 can control the driving devices 2 adjacent to the position on the gasket 11 that needs to be adjusted to operate independently, so that the corresponding position on the gasket 11 can be driven to deform by the corresponding driving device 2. Here, "adjacent" refers to one or more driving devices 2 that are closer to the position on the gasket 11 that needs to be adjusted.

[0087] In one possible implementation, Figure 11 This is an exploded view of the mask 1 provided in the embodiment of the present application, as shown in FIG. Figure 11 As shown, the mask 1 may further include a seal 6, which may be connected to the side of the gasket 11 facing away from the main unit 3. The pressure detection device 5 is disposed between the seal 6 and the gasket 11. The seal 6 can enclose the pressure detection device 5 between the seal 6 and the gasket 11, thereby protecting the pressure detection device 5 and improving the appearance of the head-mounted display device. Furthermore, the seal 6 has a certain degree of elasticity and can have a similar shape to the gasket 11. When the head-mounted display device is worn, the seal 6 can directly contact the face. When the seal 6 is squeezed by the face, it can undergo slight elastic deformation, thereby ensuring a secure fit between the seal 6 and the face and preventing light leakage caused by a gap between the seal 6 and the face. In one embodiment, the seal 6 may be foam, which has excellent flexibility and sealing properties. This provides protection for the pressure detection device 5, improves comfort when the face contacts the foam mask, and enhances the appearance. Furthermore, the foam can be bonded to the gasket 11 for easy assembly.

[0088] An embodiment of the present application also provides an adjustment method, which can be used to adjust the shape of the mask 1 in the head-mounted display device provided in any embodiment of the present application, so that the mask 1 can automatically adjust its shape when assembled with the host 3 to adapt to the faces of different users. Figure 12 A flowchart of an adjustment method provided in one embodiment of the present application is shown in FIG. Figure 12 As shown, the adjustment method includes the following steps:

[0089] Step S1: Acquire facial image data.

[0090] In one embodiment, the image acquisition device 32 (such as Figure 3 As shown) collects image data of the user's face. For example, three-dimensional image data of the face can be collected through the cooperation of more than two cameras, and the collected image data can be transmitted to the main control module 31 in the host 3.

[0091] Step S2: Process and analyze the image to obtain facial size data.

[0092] In one embodiment, the main control module 31 (such as Figure 3 As shown) the received image data can be processed and analyzed to obtain facial dimension data. For example, the dimension data may include forehead arc length, facial height, facial width, eye socket depth, cheekbone depth, etc.

[0093] Step S3: controlling the corresponding driving device 2 according to the facial size data to drive at least a portion of the gasket 11 to move closer to or away from the host 3.

[0094] In one embodiment, the main control module 31 can send a control signal to the corresponding driving device 2 based on the facial size data to control the driving device 2 to drive the corresponding part of the gasket 11 to move and deform in a direction close to or away from the host 3, thereby achieving the purpose of automatically adjusting the shape of the gasket 11, so that the shape of the gasket 11 can adapt to the user's face, ensuring that all positions of the gasket 11 can fit the face, avoiding light leakage, and improving the user experience and wearing comfort.

[0095] In one possible implementation, Figure 13 A flow chart of an adjustment method provided in another embodiment of the present application is shown in FIG. Figure 13 As shown, after step S3, the adjustment method further includes:

[0096] Step S4: Detect the local pressure between the gasket 11 and the face, where the local pressure is the pressure generated when the gasket 11 is in contact with the face at the connection position with the pressure detection device 5 .

[0097] In one embodiment, the pressure detection device 5 (such as Figure 10 The pressure detecting device 5 can detect the local pressure data at the position near the gasket 11 where the pressure detecting device 5 is installed. The main control module 31 can control the corresponding driving device 2 to adjust the local shape of the gasket 11 based on the local pressure data.

[0098] Step S5: Determine whether the local pressure is within a preset pressure range.

[0099] In one embodiment, the main control module 31 can determine whether the above-mentioned local pressure is within a preset pressure range. If it meets the preset pressure range, there is a suitable extrusion pressure between the position where the pressure detection device 5 is provided on the gasket 11 and the face, which can provide the user with a better wearing experience on the face; if it does not meet the preset pressure range, the main control module 31 can control the corresponding drive device 2 to operate to adjust the shape of the corresponding position on the gasket 11, and then adjust the extrusion pressure between the gasket 11 and the face so that the pressure data meets the preset pressure range.

[0100] Step S6: If the result of determining whether the local pressure is within the preset pressure range is yes, then detecting the actual lens-to-eye distance between the host 3 and the eyeball.

[0101] Among them, the host 3 has a lens 34 (such as Figure 10 The "eye-to-eye distance" is the distance between the front end of the cornea and the vertex of the lens 34 facing the cornea. In one embodiment, the image acquisition device 32 can capture image data of the eyeball, and the main control module 31 can determine the eye-to-eye distance between the eyeball and the lens 34 based on the image data of the eyeball.

[0102] Step S7: Determine whether the actual eye-to-eye distance matches the preset target eye-to-eye distance. The preset target eye-to-eye distance can generally be 12-14 mm. The main control module 31 can determine whether the actual eye-to-eye distance matches the preset target eye-to-eye distance.

[0103] Step S8: If the actual lens-to-eye distance does not match the target lens-to-eye distance, each driving device 2 is controlled to drive the corresponding portion of the gasket 11 to synchronously move closer to or away from the host 3.

[0104] If the main control module 31 determines that the actual eye-to-eye distance does not match the target eye-to-eye distance, the main control module 31 can control all the drive devices 2 to move synchronously in the same direction. For example, when all the drive devices 2 move synchronously toward the main unit 3, the distance between the gasket 11 and the lens 34 can be reduced, thereby bringing the user's eyes closer to the lens 34 during wear, thereby reducing the eye-to-eye distance. Similarly, when all the drive devices 2 move synchronously away from the main unit 3, the distance between the gasket 11 and the lens 34 can be increased, thereby moving the user's eyes further away from the lens 34 during wear, thereby increasing the eye-to-eye distance. Thus, by controlling all the drive devices 2 to move synchronously in the same direction, the gasket 11 can be translated as a whole while maintaining its overall shape substantially unchanged, thereby achieving adjustment of the eye-to-eye distance while ensuring that the gasket 11 fits the face well.

[0105] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A head-mounted display device, characterized in that: include: A face mask, the face mask comprising a gasket and a bracket, the gasket being connected to the bracket; a driving device, the driving device being connected to the bracket, and a driving portion of the driving device being connected to the gasket; A host, the host is connected to an end of the bracket away from the gasket, and there is a distance between the gasket and the host. The host includes a main control module and an image acquisition device, the image acquisition device is electrically connected to the main control module, and the image acquisition device is used to acquire facial image data; the main control module is electrically connected to the driving device, and the main control module is used to control the movement of the driving part of the driving device according to the image data, so as to drive at least part of the gasket to move closer to or away from the host through the driving part.

2. The head-mounted display device according to claim 1, wherein: The host is provided with a first connection terminal, and the first connection terminal is electrically connected to the main control module; The bracket is provided with a second connecting terminal, and the second connecting terminal is electrically connected to the driving device; The main control module is electrically connected to the driving device through the cooperation of the first connecting terminal and the second connecting terminal; The host is mechanically connected to the bracket through the cooperation of the first connecting terminal and the second connecting terminal.

3. The head-mounted display device according to claim 2, wherein: The first connecting terminal and the second connecting terminal are both magnetic conductive terminals.

4. The head mounted display device according to claim 2 or 3, wherein: It also includes a transmission line, which is connected to the bracket, one end of the transmission line is electrically connected to the first connection terminal, and the other end of the transmission line is electrically connected to the driving device.

5. The head mounted display device according to any one of claims 1 to 4, characterized in that: It also includes a pressure detection device, which is connected to the gasket and electrically connected to the main control module. The pressure detection device is used to collect local pressure data between the gasket and the face.

6. The head mounted display device according to claim 5, wherein: The mask further includes a sealing member connected to a side of the gasket facing away from the host, and the pressure detection device is arranged between the sealing member and the gasket.

7. The head mounted display device according to any one of claims 1 to 6, wherein: The mask further comprises an elastic cloth, which is wrapped around the bracket and connected to the gasket.

8. The head mounted display device according to any one of claims 1 to 7, wherein: The driving device is a motor, and the motor includes a driving shaft, and the driving shaft is the driving part.

9. The head mounted display device according to any one of claims 1 to 8, wherein: The driving part and the gasket are bonded together by glue; and / or the driving part and the gasket are connected by a connecting piece.

10. The head mounted display device according to any one of claims 1 to 9, wherein: The image acquisition device includes at least two cameras.

11. A method for adjusting the shape of a mask in a head mounted display device according to any one of claims 1 to 10, characterized in that: include: Obtaining facial image data; Processing and analyzing the image to obtain facial dimension data; According to the facial size data, a corresponding driving device is controlled to drive at least a portion of the gasket to move closer to or away from the host.

12. The adjustment method according to claim 11, characterized in that: After controlling the corresponding driving device to drive at least a portion of the gasket toward or away from the host according to the facial size data, the method further includes: detecting a local pressure between the gasket and the face, wherein the local pressure is the pressure generated when the gasket is in contact with the face at a location where the gasket is connected to the pressure detection device; Determining whether the local pressure is within a preset pressure range; If yes, detecting the actual lens-to-eye distance between the host and the eyeball; Determining whether the actual lens-to-eye distance matches a preset target lens-to-eye distance; If the actual lens-to-eye distance does not match the target lens-to-eye distance, each driving device is controlled to drive the corresponding portion of the gasket to synchronously move closer to or away from the host.

13. The adjustment method according to claim 12, characterized in that: If the result of determining whether the local pressure is within the preset pressure range is no, the corresponding driving device is repeatedly controlled to drive at least a portion of the gasket toward or away from the host.

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