Head-mounted display system

Abstract

A head-mounted display system includes a positioning and stabilizing structure configured and arranged to hold a display unit in an operating position over a user's face in use, and an interface structure for the display unit configured and arranged in opposing relation to the user's face. The interface structure includes a substantially continuous face engaging surface adapted to contact the user's face around a periphery of the user's eyes. The interface structure includes silicone. The interface is configured and arranged so that forces applied to the user's face are distributed around the periphery thereof. The interface structure includes a first compliance at a first region and a second compliance at a second region, with the first and second regions configured around the periphery of the interface structure to allow selective distribution of forces to the user's face.

Description

[0001] This application is a divisional application of patent application No. 202080038956.4 (PCT / AU2020 / 051158) filed on November 25, 2021, with an international filing date of October 28, 2020, entitled "Head-mounted Display System".

[0002] This patent document contains a portion of copyrighted material. The copyright holder does not object to the reproduction of these patent documents or patent disclosures by any person in the form they appear in the patent office documents or records, but otherwise reserves all copyright rights.

[0003] 1. Cross-references to related applications

[0004] This application claims the benefits of Australian Provisional Application No. 2020900953, filed March 27, 2020; U.S. Application No. 16 / 865,480, filed May 4, 2020; U.S. Application No. 16 / 865,526, filed May 4, 2020; Australian Provisional Application No. 2020901432, filed May 5, 2020; Australian Provisional Application No. 2020901437, filed May 6, 2020; and Australian Provisional Application No. 2020902514, filed July 20, 2020, each of which is incorporated herein by reference in its entirety. Technical Field

[0005] This technology generally relates to head-mounted displays, positioning and stabilization structures, user interface structures, and other components for head-mounted displays, related head-mounted display assemblies and systems, including display units and positioning and stabilization structures, interface structures and / or components and methods. This technology finds specific applications in the use of virtual reality head-mounted displays and is described in this context. However, it should be understood that this technology can have broader applications and can be used in other head-mounted display devices that include augmented reality displays. 2 Background Technology

[0006] 2.2 Description of relevant technologies

[0007] 2.2.1 Head-mounted display

[0008] It should be understood that if any prior art is mentioned in this document, such mention does not constitute an admission that the prior art is part of common general knowledge in the field in Australia or any other country.

[0009] Virtual reality head-mounted displays enable users to have a fully immersive experience of virtual environments and have wide applications in fields such as communications, training, medical and surgical practices, engineering, and video games.

[0010] Virtual reality head-mounted displays are typically provided as systems or components including a display unit arranged in an operating position in front of a user's face. The display unit typically includes: a housing containing the display; and a user interface structure configured and arranged relative to the user's face, i.e., facing or positioned opposite the user's face. The user interface structure may extend around the display and, in conjunction with the housing, define an viewing opening to the display. The user interface structure may engage with the user's face and include padding for user comfort and / or light-sealing to block ambient light from the display. The head-mounted display system further includes a positioning and stabilization structure disposed on the user's head to maintain the display unit in the proper position.

[0011] 2.2.1.1 Interface Structure

[0012] Head-mounted displays may include user interface structures. Because they come into direct contact with the user's face, the shape and configuration of the interface structure directly affect the effectiveness and comfort of the display unit.

[0013] The design of the user interface architecture presents many challenges. The face has a complex three-dimensional shape. The size and shape of the nose and head vary greatly between individuals. Because the head consists of bone, cartilage, and soft tissue, different areas of the face respond differently to mechanical forces.

[0014] One type of interface structure extends around the periphery of the display unit and is designed to seal against the user's face when force is applied to the user interface, wherein the interface structure engages face-to-face with the user's face. The interface structure may include a pad made of polyurethane (PU). With this type of interface structure, a gap often exists between the interface structure and the face, and additional force will be required to force the display unit against the face to achieve the desired contact.

[0015] An area completely unoccupied by the display unit allows a gap to form between the face interface and the user's face, through which unwanted light pollution can enter the display unit. Light pollution reduces the overall effect and enjoyment of the user's virtual reality experience. Furthermore, previous systems may have been difficult to adjust to accommodate various head sizes. Moreover, the display unit and associated positioning and stabilization structures are often relatively heavy and difficult to clean, which may further limit the comfort and usability of the system.

[0016] Another type of interface structure incorporates a sheet-like seal of thin material located around the periphery of the display unit to provide a seal against the user's face. Similar to previous types of interface structures, if the face does not fit well with the interface structure, additional force may be required to achieve a seal, or light may leak into the display unit during use. Furthermore, if the shape of the interface structure does not match the user's shape, it may wrinkle or bend during use, resulting in undesirable light transmission.

[0017] 2.2.1.2 Positioning and Stabilizing Structure

[0018] To keep the display unit in its correct operating position, head-mounted display systems further include positioning and stabilization structures arranged on the user's head. Historically, these positioning and stabilization structures were formed by deployable rigid structures, typically applied under tension to the user's head to hold the display unit in its operating position. Such systems tend to apply clamping pressure to the user's face, causing discomfort at localized pressure points. Furthermore, previous systems could be difficult to adjust for a wide range of head sizes. In addition, the display unit and associated positioning and stabilization structures are often heavy and difficult to clean, further limiting the system's comfort and usability.

[0019] Some other head-mounted display systems may not be functionally compatible with this technology. For example, positioning and stabilization structures designed for aesthetic and visual appeal may not have the structural capability to maintain appropriate pressure around the face. For instance, excessive clamping pressure may cause user discomfort, or alternatively, insufficient clamping pressure on the user's face may not effectively seal the display against ambient light.

[0020] Some other head-mounted display systems may be uncomfortable or impractical for this technology. For example, if the system is used for extended periods of time.

[0021] Due to these challenges, some head-mounted display systems suffer from one or more of the following problems: obtrusive, unattractive, expensive, incongruous, difficult to use, and uncomfortable, especially when worn for extended periods or when the user is unfamiliar with the system. Incorrectly sized positioning and stabilizing structures can lead to reduced comfort and consequently shorten the lifespan of the device.

[0022] Therefore, the interface portion of the user interface used for a fully immersive experience in a virtual environment is subjected to forces corresponding to the user's movements during the experience.

[0023] 2.2.1.3 Materials

[0024] Materials used in head-mounted display components include dense foam for contact portions in the interface structure, a rigid housing for the casing, and positioning and stabilizing structures formed by rigid plastic clamping structures. These materials have various drawbacks, including not allowing the skin covering the material to breathe, lack of flexibility, difficulty in cleaning, and a tendency to accumulate bacteria. As a result, products made with these materials may be uncomfortable to wear for extended periods, cause skin irritation in some individuals, and limit the product's application.

[0025] Therefore, an improved system without the aforementioned drawbacks is needed. 3. Summary of the Invention

[0026] One aspect of this technology relates to a positioning and stabilization structure for a head-mounted display system (or user interface), the positioning and stabilization structure including a rear support structure arranged to contact a posterior region of the user's head during use. In some forms, the rear support structure includes a clamp having an occipital portion and a parietal portion.

[0027] The hoop, or at least one of its occipital and parietal portions, may be elastically extendable along at least a portion of its length. In some forms, the hoop is flexible along at least a portion of its length. In some forms, where the posterior support structure is the hoop, the occipital portion may extend to the lower part of the user's head, thus resisting upward movement (due to its position in contact with the occipital region of the head) and thereby providing an anchor for the system. In some forms, the hoop is oriented in a generally vertical plane (e.g., a vertical plane including the coronal plane).

[0028] In some configurations, the rear support structure is positioned behind the user's upper ear base.

[0029] Another aspect of this technology relates to a positioning and stabilization structure for a head-mounted display system, the positioning and stabilization structure including a back support and a front support, the back support being arranged to contact a rear region of the user's head during use, and the front support being arranged to contact a front region of the user's head during use, the back support and the front support extending transversely in the sagittal plane. In some forms, the positioning and stabilization structure further includes an adjustment mechanism to allow adjustment between the back support and the front support.

[0030] In some forms, the adjustment mechanism allows for lateral adjustment between the rear and front supports. In other forms, the adjustment mechanism allows for angular adjustment between the rear and front supports.

[0031] Another aspect of this technology relates to a positioning and stabilization structure for a head-mounted display system, the positioning and stabilization structure including a rear support and a front support, the rear support being arranged to contact the rear region of the user's head during use, and the front support being arranged to contact the front region of the user's head during use, the rear support and the front support extending laterally in the sagittal plane and offset laterally from each other.

[0032] In some configurations, the posterior support or occipital support is biased to contact the user's occipital region.

[0033] Another aspect of this technology relates to a positioning and stabilization structure for a head-mounted display system, comprising: a support arranged to accommodate the weight of a display unit of the head-mounted display system in use; and one or more adjustment mechanisms that allow adjustment of the position of the display unit relative to the support.

[0034] In some forms, the adjustment of the display unit relative to the support can be at an angle relative to the user's head and / or along a front-to-back direction.

[0035] Another aspect of this technology relates to a positioning and stabilization structure for a head-mounted display system, the head-mounted display system including a stretchable and rigid elastic component that is substantially instretchable and inelastic.

[0036] In some forms, the positioning and stabilizing structure further includes opposing connectors arranged on opposite sides of the user's head and extending along the temporal region of the user's head during use to interconnect the rear support structure or support to the display unit.

[0037] In some forms, the connector is rigid along at least a portion of its length. In some forms, each connector includes an arm having one of a front end connected to the display unit and a rear end or support portion connected to the rear support structure. In some forms, the arm is rigid. In some forms, the rear end of the arm is positioned at or behind the user's ear base.

[0038] In some forms, at least one connector further includes an adjustment mechanism for adjusting the positioning and stabilizing structure to accommodate different head sizes. In some forms, the adjustment mechanism is located at the connection between the rear end of the temporal arm and the posterior support structure.

[0039] In some forms, the positioning and stabilizing structure includes one or more connecting tabs attached to the arm of the connector (i.e., the connector arm), and an adjustment mechanism allows adjustment of the effective length of the connecting tabs. In some forms, the rear end of the connector arm includes an eyelet arranged to receive the connecting tab, and the adjustment mechanism includes a releasable fastening device to secure the connecting tab to the temporal arm. In some forms, the releasable fastening device may be arranged to secure the free end of the connecting tab back to the proximal portion of the connecting tab. The releasable fastening device may take other forms, such as a clip or retainer that allows for friction, interference fit, snap-fit, or other mechanical fastening.

[0040] In some forms, the positioning and stabilizing structure may further include a forehead support connector. In some forms, the forehead support connector may extend generally in a sagittal plane and connect the rear support structure or front support portion to the upper edge region of the display unit. In some forms, the forehead support connector may include a strap. In some forms, the strap of the forehead support connector may extend elastically along at least a portion of its length. In some forms, the strap of the forehead support connector may be flexible along at least a portion of its length.

[0041] In some forms, the forehead support connector may also include an adjustment mechanism for adjusting the positioning and stabilization structure to accommodate different head sizes. In some forms, the adjustment mechanism can adjust the effective length of the forehead support connector strap when the forehead support connector is in that configuration.

[0042] In some forms, the forehead support connector also includes a forehead support rigidizer, which provides rigidity to a portion of the forehead support connector. In some forms, the forehead support rigidizer provides rigidity to a portion of the forehead support connector positioned along the forehead region of the user's head. The extension and positioning of the forehead support rigidizer helps in the proper positioning of the display unit and reduces pressure on the user's cheekbones. In some forms, the forehead support rigidizer may be adjustable (angularly or translatably) relative to other components of the forehead support connector (such as the forehead support connector's straps) to achieve precise positioning of the head-mounted display unit and contribute to improved user comfort and fit.

[0043] In some forms, the positioning and stabilizing structure further includes additional rigid members that can bridge other parts of the structure, such as the rear support structure, front or rear support sections, and / or connector arms. In some forms, these additional rigid members can help control the movement of the display unit around the rear support structure to further stabilize and support the system. In some forms, these additional rigid members can restrict hinged movement at the junction of the temporal connector and the rear support structure. In some forms, these additional rigid members can also extend along the occipital region of the rear support structure to further anchor the display unit in its correct operating position. In some forms, these additional rigid members can be adjustable (angularly or translationally) relative to other parts of the forehead support connector (or adapted to be adjustable (angularly or translationally) relative to other parts of the forehead support connector) to further contribute to comfort, adjustability, and fit.

[0044] In some forms, the positioning and stabilizing structure may allow upward (e.g., above) pivoting of the display unit to allow the display unit to move to a non-operating position without removing the positioning and stabilizing structure (e.g., flip-up). In some forms, the pivoting movement of the display unit involves a pivoting device including the positioning and stabilizing structure. In some forms, the pivoting device may provide a release mechanism at the forehead support connector and / or a limited hinge area at the temporal connector.

[0045] Any of the aforementioned positioning and stabilization structures may be contained in, integrated into, or releasably attached to a protective cap or other headwear. The positioning and stabilization structure may also include other components integrated therein, such as audio, tactile (haptic) stimulation, or feedback.

[0046] Another aspect of this technology relates to an interface structure for a head-mounted display unit, which is constructed and arranged in a relative relationship with the user's face.

[0047] In some forms, the interface structure includes a face-bonding surface, which comprises one or more silicone regions, or one or more layers of fabric material or foam.

[0048] In some forms, the interface structure may have varying compliance to allow forces to be distributed more selectively onto the user's face. In some forms, one or more areas of the face-fitting surface may be formed with varying thickness and / or varying surface finish, thereby resulting in a face-fitting surface that has variable compliance when pressed against the user's face during use.

[0049] In some forms, the interface structure includes: a face joint, a support structure that supports the face joint in place, and a chassis that may be rigid (i.e., a rigid chassis).

[0050] Another aspect of this technology relates to an interface structure for a head-mounted display system, the interface structure extending around a display and defining an viewing opening for the display. In some forms, the interface structure may include a plurality of adjustable face joints located on corresponding sides of the left and right sides of the interface structure. The adjustable face joints are movable relative to each other.

[0051] In some forms, the adjustable face joint is movable relative to the chassis of the interface structure. The interface structure may include adjustment mechanisms, such as sliding tabs (or sliding flanges) or rack and pinion adjustment mechanisms, to allow the user to selectively adjust the spacing of the face joint.

[0052] In some forms, the interface structure includes components and / or areas that are detachably mounted to the housing of the display unit.

[0053] One aspect of this technology relates to a head-mounted display system including a positioning and stabilizing structure configured and arranged to hold a display unit in an operating position above a user's face. The positioning and stabilizing structure includes a support band comprising a rear support portion adapted to contact a region of the user's head and a front support portion adapted to contact a region of the user's head. The rear support portion of the support band is adapted to extend in a first plane, and the front support portion of the support band is adapted to extend in a second plane, each of the first plane of the rear support portion and the second plane of the front support portion being adapted to extend laterally to the sagittal plane. The support band includes an offset configuration in which the rear support portion is offset from the front support portion, such that the first plane of the rear support portion is arranged in a plane different from the second plane of the front support portion. In an example, the head-mounted display system may further include a display unit.

[0054] One aspect of this technology relates to a positioning and stabilizing structure for holding a display unit in an operating position above a user's face. The positioning and stabilizing structure includes a support hoop comprising a rear support portion adapted to contact a region of the user's head rearward and a front support portion adapted to contact a region of the user's head frontward. The rear support portion of the support hoop is adapted to extend in a first plane, and the front support portion of the support hoop is adapted to extend in a second plane, each of the first plane of the rear support portion and the second plane of the front support portion being adapted to extend transversely to the sagittal plane. The support hoop includes an offset configuration in which the rear support portion is offset from the front support portion, such that the first plane of the rear support portion is arranged in a plane different from the second plane of the front support portion.

[0055] One aspect of this technology relates to a head-mounted display system including a positioning and stabilizing structure configured and arranged to hold a display unit in an operating position above a user's face. The positioning and stabilizing structure includes a support band comprising a rear support portion adapted to contact a region of the user's head rear and a front support portion adapted to contact a region of the user's head front. The rear support portion of the support band is adapted to extend in a first plane and the front support portion of the support band is adapted to extend in a second plane, each of the first plane of the rear support portion and the second plane of the front support portion being adapted to extend transversely to the sagittal plane. The rear support portion and the front support portion are movable relative to each other in at least an offset configuration, in which the rear support portion is offset from the front support portion such that the first plane of the rear support portion is arranged in a plane different from the second plane of the front support portion. In an example, the head-mounted display system may further include a display unit.

[0056] In the example, the head-mounted display system may further include an adjustment mechanism configured and arranged to allow selective adjustment of the rear support relative to the front support. In the example, the adjustment mechanism may be configured and arranged to allow selective adjustment between (1) an inline configuration in which the first plane of the rear support is arranged coplanar with the second plane of the front support and (2) at least one offset configuration. In one example, the at least one offset configuration forms an interval or displacement between the first plane and the second plane, and the adjustment mechanism allows selective adjustment of the interval or displacement. In the example, the adjustment mechanism may allow angular adjustment of the angle formed between the first plane of the rear support and the second plane of the front support. In the example, the rear support may include an elastic band biased to contact the user's occipital region. In the example, the rear support may be configured and arranged to engage the user's head along a portion of the occipital bone. In the example, the front support may be configured and arranged to engage the user's head along the upper part of the frontal bone. In the example, the head-mounted display system may further include at least one connector configured and arranged to interconnect the rear support and the front support to the display unit. In the example, the rear support and the front support, in the offset configuration, may generate torques configured to counteract or resist torques induced by the display unit. In the example, the rear support includes an elastic strap biased to contact a portion of the occipital bone, the elastic strap generating additional torques to counteract or resist torques induced by the display unit. In the example, the display unit includes a housing including a display visible to the user when the head-mounted display unit is in the operating position, and an interface structure configured and arranged relative to the user's face, the user interface structure extending around the display and defining an viewing opening to the display. In the example, the positioning and stabilizing structure may further include a pair of central support structures, each of which is adapted to be positioned around a corresponding one in the user's ear, and wherein the display unit is rotatably connected to the pair of central support structures to allow the display unit to rotate relative to the Frankfurt plane. In the example, at least one of the front support and the rear support may be rotatable relative to the pair of central support structures.

[0057] One aspect of this technology relates to a positioning and stabilizing structure for holding a display unit in an operating position above a user's face. The positioning and stabilizing structure includes a support band comprising a rear support portion adapted to contact a region of the user's head rear and a front support portion adapted to contact a region of the user's head front. The rear support portion of the support band is adapted to extend in a first plane, and the front support portion of the support band is adapted to extend in a second plane, each of the first plane of the rear support portion and the second plane of the front support portion being adapted to extend transversely to the sagittal plane. The rear support portion and the front support portion are movable relative to each other in at least an offset configuration, in which the rear support portion is offset from the front support portion such that the first plane of the rear support portion is arranged in a plane different from the second plane of the front support portion.

[0058] In the example, the positioning and stabilizing structure may further include an adjustment mechanism configured and arranged to allow selective adjustment of the rear support relative to the front support. In the example, the adjustment mechanism may be configured and arranged to allow selective adjustment between (1) an inline configuration in which the first plane of the rear support is arranged coplanar with the second plane of the front support and (2) at least one offset configuration. In one example, the at least one offset configuration forms a gap or displacement between the first plane and the second plane, and the adjustment mechanism allows selective adjustment of the gap or displacement. In the example, the adjustment mechanism may allow angular adjustment of the angle formed between the first plane of the rear support and the second plane of the front support. In the example, the rear support may include an elastic band biased to contact the user's occipital region. In the example, the rear support may be configured and arranged to engage the user's head along a portion of the occipital bone. In the example, the front support may be configured and arranged to engage the user's head along the upper part of the frontal bone. In the example, the positioning and stabilizing structure may further include at least one connector configured and arranged to interconnect the rear support and the front support to the display unit. In the example, the rear support and the front support, in the offset configuration, may generate torques configured to counteract or resist torques induced by the display unit. In the example, a portion of the rear support includes an elastic band biased to contact a portion of the occipital bone, the elastic band generating additional torques to counteract or resist torques induced by the display unit. In the example, the positioning and stabilizing structure may also include a pair of central support structures, each adapted to be positioned around a corresponding one in the user's ear, and wherein the display unit is rotatably connected to the pair of central support structures to allow the display unit to rotate relative to the Frankfurt plane. In the example, at least one of the front support and the rear support may be rotatable relative to the pair of central support structures.

[0059] One aspect of this technology relates to a head-mounted display system including a positioning and stabilizing structure configured and arranged to hold a display unit in an operating position above a user's face during use. The positioning and stabilizing structure includes a support portion configured and arranged to accommodate the weight of the head-mounted display unit. The support portion includes a pair of central support structures, each adapted to be positioned around a corresponding ear of the user. In an example, the display unit is rotatably connected to the pair of central support structures to allow the display unit to rotate relative to a horizontal plane. In an example, the head-mounted display system may further include the display unit.

[0060] One aspect of this technology relates to a positioning and stabilizing structure for holding a display unit in an operating position above a user's face. The positioning and stabilizing structure includes a support configured and arranged to accommodate the weight of the display unit. The support includes a pair of central support structures, each adapted to be positioned around a corresponding one of the user's ears. The display unit is rotatably connected to the pair of central support structures to allow the display unit to rotate relative to the Frankfurt plane.

[0061] One aspect of this technology relates to a head-mounted display system including a positioning and stabilizing structure configured and arranged to hold a display unit in an operating position above a user's face during use. The positioning and stabilizing structure includes a rear support adapted to contact a region of the back of the user's head and a front support adapted to contact a region of the front of the user's head. The rear support includes a substantially non-extensible and substantially resilient rigid member. The rigid member includes a plurality of slots on at least one side of the rigid member, and the plurality of slots form a plurality of hinges. In an example, the head-mounted display system may further include a display unit.

[0062] One aspect of this technology relates to a positioning and stabilizing structure for holding a display unit in an operating position above a user's face. The positioning and stabilizing structure includes a rear support adapted to contact a region of the back of the user's head and a front support adapted to contact a region of the front of the user's head. The rear support includes a substantially non-extensible and substantially resilient rigid member. The rigid member includes a plurality of slots on at least one side of the rigid member, and the plurality of slots form a plurality of hinges.

[0063] One aspect of this technology relates to a head-mounted display system comprising: a positioning and stabilizing structure configured and arranged to hold a display unit in an operating position above a user's face during use; and an interface structure for the display unit configured and arranged relative to the user's face. The interface structure includes a substantially continuous facial engagement surface adapted to contact the user's face around the periphery of the user's eyes. The interface structure comprises silicone. The interface is configured and arranged such that forces applied to the user's face are distributed around its periphery. The interface structure includes a first compliance at a first region and a second compliance at a second region, wherein the first and second regions are configured around the periphery of the interface structure to allow the forces to be selectively distributed onto the user's face. In an example, the head-mounted display system may further include the display unit.

[0064] Another aspect of this technology relates to an interface structure for a display unit, configured and arranged to be in relation to a user's face. The interface structure includes a substantially continuous facial engagement surface adapted to contact the user's face around the periphery of the user's eyes. The interface structure comprises silicone. The interface is configured and arranged such that forces applied to the user's face are distributed around its periphery. The interface structure includes a first compliance at a first region and a second compliance at a second region, wherein the first and second regions are configured around the periphery of the interface structure to allow the forces to be selectively distributed onto the user's face.

[0065] One aspect of this technology relates to a head-mounted display system comprising: a positioning and stabilizing structure configured and arranged to hold a display unit in an operating position above a user's face during use; and an interface structure for the display unit configured and arranged relative to the user's face, the interface structure extending around the display and defining (or forming) an viewing opening of the display, wherein the display is visible to the user when the display unit is in the operating position. The interface structure includes facial engagement portions located on corresponding sides of the viewing opening, on a left-hand and right-hand side, the facial engagement portions being configured and arranged to be slidably movable relative to each other. In an example, the head-mounted display system may further include the display unit.

[0066] Another aspect of this technology relates to an interface structure for a display unit configured and arranged relative to a user's face. The interface structure extends around the display and defines (or forms) an viewing opening of the display, which is visible to the user when the display unit is in an operating position. The interface structure includes movable facial engagement portions located on corresponding sides of the left and right sides of the viewing opening, the movable facial engagement portions being configured and arranged to be slidably movable relative to each other.

[0067] Another aspect of this technology relates to a head-mounted display system or component, which includes any of the positioning and stabilization structures and / or interface structures described above, and a display unit connected thereto.

[0068] Another aspect of this technology includes a virtual reality display interface or device, which includes examples of various aspects of the aforementioned head-mounted display system.

[0069] In examples of the aforementioned head-mounted display systems, the display unit includes a display configured to selectively output computer-generated images visible to the user in an operating position.

[0070] In the example of the head-mounted display system described above, the display unit includes a housing.

[0071] In some configurations, the housing supports the display.

[0072] In an example of the aforementioned head-mounted display system, the display unit includes an interface structure that is coupled to the housing and arranged to be in relation to the user's face in the operating position.

[0073] In some forms, the interface structure at least partially forms an observation opening, the observation opening being configured to at least partially receive the user's face in the operating position.

[0074] In some forms, the interface structure is at least partially constructed of an opaque material configured to at least partially block ambient light from reaching the observation opening in the operating position.

[0075] In an example of the head-mounted display system described above, the display unit includes at least one lens, which is coupled to the housing and arranged within the viewing opening and aligned with the display, such that it is in an operating position.

[0076] In some configurations, the user can view the display through at least one lens.

[0077] In the example of the head-mounted display system described above, the control system has at least one sensor that communicates with the processor.

[0078] In some forms, at least one sensor is configured to measure parameters and transmit the measured values ​​to a processor.

[0079] In some forms, the processor is configured to generate a computer-generated image based on changes in the measured values ​​output by the display.

[0080] Another aspect of this technology includes an augmented reality display interface or device, which includes examples of various aspects of the aforementioned head-mounted display system.

[0081] In examples of the aforementioned head-mounted display systems, the display unit includes a display made of a transparent or translucent material and configured to selectively provide computer-generated images that can be observed by a user.

[0082] In the example of the head-mounted display system described above, the display unit includes a housing.

[0083] In some configurations, the housing supports the display.

[0084] In an example of the aforementioned head-mounted display system, the display unit includes an interface structure that is coupled to the housing and arranged to be in relation to the user's face in the operating position.

[0085] In the example of the head-mounted display system described above, in the operating position, the positioning and stabilizing structure is configured to support the display unit.

[0086] In the example of the head-mounted display system described above, the display is configured to be aligned with the user's eyes in the operating position, so that the user can at least partially observe the physical environment through the display, regardless of the computer-generated images output by the display.

[0087] In an example of the head-mounted display system described above, the head-mounted display system further includes a control system having at least one sensor that communicates with a processor.

[0088] In some forms, at least one sensor is configured to measure parameters and transmit the measured values ​​to a processor.

[0089] In some forms, the processor is configured to generate a computer-generated image based on changes in the measured values ​​output by the display.

[0090] In some forms, the at least one lens includes a first lens configured to be aligned with the user's left eye in the operating position and a second lens configured to be aligned with the user's right eye in the operating position.

[0091] In some forms, the first and second lenses are Fresnel lenses.

[0092] In some forms, the display includes a binocular display divided into a first segment and a second segment, the first segment being aligned with a first lens and the second segment being aligned with a second lens.

[0093] In some forms, the controller has at least one button that can be selectively engaged by a user's finger, the controller communicating with the processor and configured to send a signal to the processor when the at least one button is engaged, the processor being configured to modify a computer-generated image output from the display based on the signal.

[0094] In some forms, the at least one lens includes a first lens configured to be aligned with the user's left eye in the operating position and a second lens configured to be aligned with the user's right eye in the operating position.

[0095] Of course, some of these aspects can form sub-aspects of this technology. Sub-aspects and / or aspects of the aspects can be combined in various ways and also constitute other aspects or sub-aspects of this technology.

[0096] Other features of the present technology will become apparent from the information contained in the following detailed description, abstract, drawings and claims. 4. Attached Figure Descriptions

[0097] This technology is illustrated by way of example and not limitation in the figures, and similar reference numerals in the figures refer to similar elements, including:

[0098] 4.1 Facial Anatomy

[0099] Figure 1a It is a frontal view of the face with several marked surface anatomical features, including the inner canthus, brow ridge and cranial muscles, upper lip, vermilion border of the upper lip, nasal alae, nasolabial folds, and corners of the mouth. The left and right sides of the sagittal plane, as well as the superior, inferior, radially inward, and radially outward directions, are also shown.

[0100] Figure 1b It is a side view of the head with several features of the surface anatomy marked by identification, including the temporomandibular joint, glabella, nasal bridge point, nasal bridge, zygomatic arch / bone, supraauricular attachment point, lateral occipital protuberance, infraauricular attachment point, nasal protuberance, subnasal septum point, alar ridge point, and temporalis muscle. Superior and inferior, as well as anterior and posterior directions, are also indicated.

[0101] Figure 1c This is another side view of the head. It indicates the approximate location of the Frankfurt plane. The coronal plane is also indicated.

[0102] Figure 1d This diagram shows a side view of the skull, including the surface contours of the head and several muscles. The following bones are shown: frontal bone, sphenoid bone, nasal bone, zygomatic bone, maxilla, mandible, parietal bone, temporal bone, and occipital bone. The following muscles are shown: masseter and trapezius.

[0103] Figure 1e A anterolateral view of the nose is shown. The following bones are shown: frontal bone, supraorbital foramen, nose, nasal septal cartilage, lateral cartilage, orbit, and infraorbital foramen.

[0104] 4.2 Shape of the structure

[0105] Figure 2a A schematic diagram of the cross-section of the structure at point P is shown. The outward normal at point P is indicated. The curvature at this point has a positive sign, and when... Figure 2b The curvature amplitude shown has a relatively large amplitude compared to that shown.

[0106] Figure 2bA schematic diagram of a cross-section of the structure at a point is shown. The outward normal at that point is indicated. The curvature at that point has a positive sign, and when... Figure 2a The curvature amplitude shown has a relatively small amplitude compared to that shown.

[0107] Figure 2c A schematic diagram of a cross-section of the structure at a point is shown. The outward normal at the point is indicated. The curvature at the point has a zero value.

[0108] Figure 2d shows a schematic diagram of the cross-section of the structure at a point. The outward normal at the point is indicated. The curvature at the point has a negative sign and is relatively small compared to the curvature magnitude shown in Figure 2e.

[0109] Figure 2e shows a schematic diagram of the cross-section of the structure at a point. The outward normal at the point is indicated. The curvature at the point has a negative sign and is relatively large compared to the curvature magnitude shown in Figure 2d.

[0110] Figures 2f, 2g, and 2h illustrate the seal formation structure. Figure 2f shows the outer surface of the gasket. Figure 2g shows the edge of this surface. Figure 2g shows the path on the surface between points A and B. Figure 2g shows the straight-line distance between A and B. Figure 2h shows two saddle-shaped regions and one dome-shaped region.

[0111] Figure 2i The left ear is shown, including the left ear spiral.

[0112] Figure 2j A right-handed spiral is shown.

[0113] Figure 2k The right ear is shown, including the right ear spiral.

[0114] Figure 2l The left-hand rule is shown.

[0115] Figure 2m The right-hand rule is shown.

[0116] Figure 2n The diagram shows a surface with a structure having a one-dimensional hole. The planar curves shown form the boundary of the one-dimensional hole.

[0117] Figure 2o It shows crossing Figure 2n The cross-section of the structure. The surface shown is in Figure 2n The structure defines a two-dimensional hole.

[0118] Figure 2p It shows Figure 2n A perspective view of the structure, including two-dimensional and one-dimensional holes. Also shown is... Figure 2nThe surface of the two-dimensional hole is defined in the structure.

[0119] 4.3 Head-mounted display

[0120] 4.3.1 Positioning and Stabilizing Structure

[0121] Figures 3a to 3c These are, respectively, a side view, a front view, and a top view of the positioning and stabilization structure of the head-mounted display system according to the first example of this technology.

[0122] Figure 3d This is an example based on this technology. Figures 3a to 3c A cross-sectional view of the temporal arm of the head-mounted display assembly.

[0123] Figure 3e This is another example based on the technology. Figures 3a to 3c A cross-sectional view of the temporal arm of the head-mounted display assembly.

[0124] Figures 4a to 4c These are, respectively, a side view, a front view, and a top view of the positioning and stabilization structure of a head-mounted display system according to a second example of the present technology.

[0125] Figures 5a to 5c These are, respectively, a side view, a front view, and a top view of the positioning and stabilization structure of the head-mounted display system according to the third example of this technology.

[0126] Figure 6 This is a side view of the positioning and stabilization structure of a head-mounted display system according to the fourth example of this technology.

[0127] Figures 7a to 7c These are, respectively, a side view, a front view, and a top view of a modified head-mounted display system according to the fourth example of this technology.

[0128] Figure 8 This is a top view of a head-mounted display component in use according to a fourth example of the present technology.

[0129] Figure 9a and Figure 9b These are side views of the positioning and stabilization structure of a head-mounted display system according to an example of this technology.

[0130] Figures 10a to 10c This is a side view of the positioning and stabilization structure of a head-mounted display system according to an example of this technology.

[0131] Figures 11a to 11c This is a schematic side view of the positioning and stabilization structure of a head-mounted display system according to an example of this technology.

[0132] Figure 12a and 12bThis is a schematic side view of the positioning and stabilization structure of a head-mounted display system according to an example of this technology.

[0133] Figure 12c This is a schematic side view of the positioning and stabilization structure of a head-mounted display system, illustrating the adjustable characteristics of an example according to the present technology.

[0134] Figure 13a and 13b This is a schematic side view of the positioning and stabilization structure of the forehead support arrangement of a head-mounted display system according to an example of the present technology.

[0135] Figure 14a This is a schematic side view of the positioning and stabilization structure according to an example of this technology.

[0136] Figure 14b This is a schematic side view of a positioning and stabilizing structure according to an example of the present technology, the positioning and stabilizing structure having a front portion in an example configuration of a first configuration and a second configuration.

[0137] Figure 14c This is a schematic side view of the positioning and stabilization structure according to an example of this technology, which shows the vector position.

[0138] Figure 14d This is a schematic side view of a positioning and stabilizing structure according to an example of the present technology, which has a display unit configured in an example configuration of a first configuration and a second configuration.

[0139] 4.3.2 Interface Structure

[0140] Figure 15a This is a cutaway front view of the interface structure in use according to an example of this technology, passing through axis AA. The left side shows the location of the interface structure, and the right side shows the approximate face area joined by the interface structure.

[0141] Figure 15b yes Figure 15a A side view of the interface structure in use.

[0142] Figure 16a , 16b 16c and 16c are respectively the side view, top view, and front view of the interface structure used in the second example of this technology.

[0143] Figure 17a Is it through Figure 16c A side cross-sectional view of axis BB shows an example of the support structure and face joint surface according to the present technology.

[0144] Figure 17b Is it through Figure 16cA side cross-sectional view of axis BB shows a further example according to the present technology, including a support structure supporting the flange and a face engagement surface.

[0145] Figure 18 This is a top-down view of the interface structure in use according to the third example of this technology.

[0146] Figure 19 This is a partial front view of the interface structure in use according to the fourth example of this technology.

[0147] Figure 20a , 20b 20c and 20d are perspective views of the interface structure in use according to the fifth example of this technology.

[0148] Figure 21a Is it through Figure 20b A side cross-sectional view of the axis CC shows the face-joining surface including a foam pad directly attached to the upper part of a support structure according to an example of the present technology.

[0149] Figure 21b Is it through Figure 20b A side cross-sectional view of the axis CC shows the face-joining surface covered with a foam pad, which is directly attached to the upper part of the support structure according to an example of the present technology.

[0150] Figure 22 This is a rear view of the interface structure in use according to the sixth example of this technology, wherein the width W of the interface structure is adjustable.

[0151] Figure 23a and 23b These are cross-sectional views taken from below at the wider lens width XX and the narrower lens width YY, respectively, in use of an adjustable interface structure according to an example of this technology. The lens width is measured from the central axis of the first lens (e.g., axis EE) to the central axis of the second lens (e.g., axis DD).

[0152] Figure 24 This is a rear view of the interface structure used in the seventh example of this technology.

[0153] 4.3.3 Anthropometry Data Model

[0154] Figure 25a and 25b This is an example of an anthropometric data model based on head shape variations and clustering, according to the present technology.

[0155] Figure 26a and 26b This is an example of an anthropometric data model based on the dimensions of a specified facial region, according to the present technology.

[0156] Figure 27a and 27b This is an example of an anthropometric data model based on the dimensions of anthropometric landmarks according to this technology.

[0157] 4.3.4 Materials

[0158] Figure 28 This is a cross-sectional view of the positioning and stabilization structure according to an example of this technology.

[0159] Figure 29 This is a cross-sectional view of a positioning and stabilizing structure according to another example of this technology.

[0160] Figure 30 This is a close-up side view of the engagement structure (e.g., interface structure or positioning and stabilizing structure) according to this technical example, which applies pressure to the user's head during use, wherein the pressure is the force applied to the surface divided by the area on which the force acts.

[0161] Figure 31 This is a close-up side view of a joint structure torsion T according to an example of the present technology, which is used to improve the joint and thus achieve a uniform (or even) distribution of pressure acting on the user's head when the joint structure is used.

[0162] Figure 32 This is a close-up front view of a positioning and stabilizing structure on at least a portion (e.g., the crown) of a user's head, according to an example of this technology.

[0163] Figure 33 This is a close-up top view of the elastic portion of a positioning and stabilizing structure in the form of a strap, according to an example of this technology.

[0164] Figure 34 This is a close-up side view of an example engagement structure according to the present technology, which is locally compliant when engaging a protrusion on the user's head during use.

[0165] 4.3.5 Examples of VR and AR Head-Mounted Display Devices

[0166] Figure 35 This is a perspective view of a VR head-mounted display device according to an example of this technology.

[0167] Figure 36 This is a schematic diagram of a controller and control system based on an example of this technology.

[0168] Figure 37 This is a perspective view of an AR head-mounted display device according to an example of this technology. 5. Detailed Implementation

[0169] Before describing this technology in further detail, it should be understood that this technology is not limited to the specific examples described herein, and the specific examples described herein may be modified. It should also be understood that the terminology used in this disclosure is for the purpose of describing the specific examples described herein only and is not intended to be limiting.

[0170] The following description is provided in relation to various examples that may share one or more common features and / or characteristics. It should be understood that one or more features of any example may be combined with one or more features of another example or other examples. In addition, in any example, any single feature or combination of features may constitute another example.

[0171] The head-mounted display system according to examples of this technology is constructed and arranged to provide a balanced system, i.e., not excessively tight at any singularity along the user's head and / or face, while providing a substantially complete seal around the user's eyes, i.e., providing or promoting full immersion in the use of a virtual reality head-mounted display. Specifically, the head-mounted display system according to examples of this technology provides a more uniform fit, constructed and arranged to distribute pressure in a comfortable and stable manner (e.g., general and regional load distribution) to reduce hot spots or localized stress points.

[0172] Furthermore, the head-mounted display system according to examples of this technology includes soft and flexible (e.g., elastic) materials (e.g., breathable materials, such as fabric-foam composites) constructed and arranged to allow for a more conformal fit to the user's head and cushioning for comfort. Additionally, the head-mounted display system according to examples of this technology includes a simple adjustment mechanism to facilitate adjustment on the user's head and allow for a wide range of fit.

[0173] 5.1 Head-mounted display

[0174] 5.1.1 Positioning and Stabilizing Structure

[0175] To keep the display unit in its correct operating position, the head-mounted display system further includes a positioning and stabilization structure arranged on the user's head. A comfortable positioning and stabilization structure needs to accommodate the load caused by the weight of the display unit in a way that minimizes facial imprinting and discomfort from prolonged use. It also needs to allow for universal fit without sacrificing comfort, usability, and manufacturing costs. Design criteria may include adjustability within a predetermined range of low-contact, easy-to-set-up solutions with a low dexterity threshold. Further considerations include catering to the dynamic environments in which the head-mounted display system can be used. As part of an immersive experience in a virtual environment, the user can communicate, i.e., speak, while using the head-mounted display system. In this way, the user's jaw or mandible can move relative to other bones of the skull. Furthermore, the entire head may move during use of a head-mounted display system (e.g., a virtual reality display). For example, movement may include movement of the user's upper body and, in some cases, lower body, and specifically, movement of the head relative to the upper and lower body.

[0176] Figure 3a and 3b A positioning and stabilization structure 14 for a head-mounted display system or component 10 according to a first example of the present technology is shown. The head-mounted display system 10 includes a head-mounted display unit 12 (or display unit 12) and a positioning and stabilization structure 14 for maintaining the display unit 12 in an operating position above the user's face during use.

[0177] The display unit 12 includes a user interface structure 11, which is constructed and arranged to be opposite to the user's face, i.e., the user interface structure faces or is placed opposite the user's face, such as... Figure 3c As shown. The user interface structure 11 extends around the display housed in the display unit housing 22. The user interface structure 11 may extend around the display and define an viewing opening (i.e., an opening for viewing) of the display. The user interface structure 11 extends around the user's eyes and may engage with the user's face, for example, along the user's nose, cheek, and / or forehead (e.g., light-sealed).

[0178] exist Figures 3a to 3cIn the example, the positioning and stabilizing structure 14 includes a rear support band 16 (also referred to as a rear support structure) and at least one connector. The rear support band is adapted to contact an area of ​​the user's head (e.g., it may be positioned on the top of the user's head), and the connector is configured and arranged to interconnect (connect) the rear support band 16 with the display unit 12. In the illustrated example, at least one connector includes opposing temporal connectors 18 disposed on a corresponding side of the user's head, interconnecting the rear support band 16 with a corresponding rear edge region 20 of the display unit housing 22 of the display unit 12, and a forehead support connector 24 extending across the user's frontal bone to interconnect (or connect) the rear support band 16 with an upper edge region 21 of the display unit housing 22. However, it should be understood that one or more connectors may be provided to interconnect the rear support band 16 with the head-mounted display unit 12.

[0179] 5.1.1.1 Temporal connector

[0180] Each opposing temporal connector 18 includes a temporal arm 26. Each temporal arm 26 includes a front end 28 and a rear end 30, the front end 28 being mounted to a corresponding rear edge region 20 of the display unit housing 22, and the rear end 30 forming part of a releasable connection to connect the temporal arm 26 to the rear support clamp 16.

[0181] In some forms, each temporal arm 26 includes a rigid member 32, a resilient (e.g., elastomer and / or fabric) component 34, and a tab 36 disposed at the rear end 30 for connection to the rear support band 16. In one example, a portion of each temporal arm 26 contacts, in use, an area of ​​the user's head, such as above the user's ear, near the supraaural acupoint. In one example, the temporal arm 26 is arranged to extend generally along or parallel to the Frankfort horizontal plane of the head in use, and above the user's cheekbone, for example.

[0182] The advantage of positioning and stabilizing structure 14 lies in its relative self-support and / or ability to maintain its shape without wear. This allows users to more intuitively or clearly understand how to use the positioning and stabilizing structure, and contrasts it with a completely loose positioning and stabilizing structure that does not maintain its shape. In one form, a rigid member provides the self-supporting aspect of the positioning and stabilizing structure.

[0183] 5.1.1.2 Rigid Components

[0184] In some forms of this technology, such as in the rigid member 32, the rigid member 32 may take the form of a hardened and / or thickened element. In one form, the rigid member 32 may be encapsulated within an elastic (e.g., elastomer and / or fabric) component 34 of each temporal arm 26. For example, Figure 3dAn example is shown of an elastic member 34 (e.g., an elastomer and / or fabric) configured as a cover to enclose a rigid member 32. In the example, the fabric member 34 includes a face-contact side disposed on one side of the rigid member 32, which provides a soft face-contact surface 35 suitable for contacting the user's face during use. In some alternative forms, the rigid member may be sewn or otherwise attached (e.g., overmolded) to the elastic member 34, or the elastic member may be made of a material that can be selectively rigidified by heat treatment. For example, Figure 3e An example is shown of an elastic component 34 (e.g., an elastomer and / or fabric) attached to the face contact side of the rigid member 32, which can provide a soft face contact surface 35 suitable for contact with the user's face during use. In one example, the elastic component 34 may include a fabric material or a fabric-foam composite material (e.g., a breathable material, such as a multi-layered construction including an outer fabric layer and an inner foam layer) to provide soft support for the rigid member 32 to cushion against the user's head for optimized comfort. The rigid member 32 may allow each temporal arm 26, or other components connected to or formed therewith, to maintain its shape and configuration in use when the user is not wearing the device. Advantageously, holding the temporal arms 26 in use before use can prevent or limit deformation when the user wears the positioning and stabilizing structure and allow the user to quickly adapt to or wear the display system 10.

[0185] In one example, rigid member 32 can be made of a rigid material, such as (Thermoplastic polyester elastomer). In Figures 3a to 3c In the example, the rigidity (i.e., non-ductility) of the rigid member 32 of each temporal arm 26 limits the extent of elongation or deformation of the temporal arm 26 during use. Advantageously, this configuration allows for more efficient (i.e., direct) transmission of tension through the temporal arm 26.

[0186] In some forms, positioning and stabilizing structures can be designed, for example, to be "out-of-the-box" and typically come into their intended configuration or shape. Furthermore, positioning and stabilizing structures can be arranged out of the box; for example, rigid elements can be formed to maintain the shape of some or part of the positioning and stabilizing structure. Advantageously, the orientation of the positioning and stabilizing structure is clear to the user because its shape is often curved, much like the back of the user's head. That is, the positioning and stabilizing structure is generally dome-shaped.

[0187] Another aspect of the positioning and stabilizing structure described herein is guiding the display unit 12 into direct contact with the user's face; that is, the force of the positioning and stabilizing structure, i.e., the force vector, can cause the display unit to apply pressure perpendicular to or normal to the user's face.

[0188] In the example, the rigid member 32 forms a lever arm (e.g., rigid member arm 32), i.e., a device that pivots about the rear support clamp 16. Advantageously, the rear support clamp 16 can provide an anchor point for positioning and stabilizing the structure 14, thus forming a pivot point. The rigid member can be hinged about the anchor point of the rear support clamp 16 so that the forehead support connector 24 can raise or lower the position of the display unit 12 relative to the user's nose. Advantageously, this configuration can minimize the magnitude of clamping pressure to stabilize the display unit 12 on the user's head.

[0189] In some forms of this technology, the rigid element can be bent, such that it takes the shape of a crescent, a semicircle, or a partial crescent.

[0190] The rigid arm 32 may have a generally elongated and flat configuration (e.g., see...). Figure 3a In other words, the rigid arm is longer and wider (in the direction from top to bottom in the paper plane) than the thickness (in the direction into the paper plane). In the example, the thickness and / or width of the rigid arm 32 may vary along at least a portion of its length; for example, the rigid arm 32 may include wider and thinner sections along its length to facilitate connection and load distribution.

[0191] Although rigid arm can be like Figures 3a to 5c The diagram is flat, but it should be understood that the rigid arm can have a desired spatial configuration in the direction of entering the paper plane (e.g., see...). Figure 6 and 7a (up to 7c), especially to allow for the shape of the user's face (e.g., the shape of the side area of ​​the user's head (e.g., see 7c)). Figures 7a to 7c Improved alignment. (e.g.) Figure 6 and 7a As shown in 7c, the rigid arm has a three-dimensional shape with curvature in all three axes (X, Y, and Z). Although the thickness of the rigid arm can be substantially uniform, its height or width varies along its entire length. The shape and dimensions of the rigid arm 32 are designed to closely conform to the user's head in order to remain inconspicuous and maintain a low profile (i.e., not appearing overly bulky).

[0192] The rigid arm may have a longitudinal axis, which can be understood as an axis substantially parallel to the plane of the paper, along which the rigid arm extends (see, for example). Figure 5a and Figure 7a (The dashed line in the middle).

[0193] In some forms of this technology, the rigid element (e.g., rigid element arm 32) is more rigid than the elastic (e.g., elastomer and / or fabric) component 34 and less rigid than the display unit housing 22. In particular, the rigid element arm and / or elastic component are such that, in combination, the rigid element arm imparts shape and increased stiffness to the elastic component in at least one direction or in or around at least one axis.

[0194] The rigid member 32 is capable of bending or deforming along its length, but resists or prevents the positioning and stabilizing structure from extending along the longitudinal axis of the rigid member (see...). Figure 5a and Figure 7a (The dashed line in the middle). For example, Figure 5a and 7a As shown, the longitudinal axis of the rigid member extends along the length of the rigid member (e.g., approximately through its center) and can be straight. Figure 5a ) or curved ( Figure 7a Rigid components can be substantially non-extensible and elastic. Rigid components according to this technology preferably have one or more of the following characteristics: maintaining their shape; allowing the component to reorient forces, i.e., force vectors, around curves, such as around a cheek or ear; the ability to bend; and / or providing a structure that maintains a predetermined form in certain planes.

[0195] In one form, the rigid member 32 can be flexible or capable of conforming to the user's head along its longitudinal axis. However, in another form, the rigid member can be configured such that it cannot bend or deform in its width. This makes positioning and stabilizing the structure comfortable while maintaining its structural function of anchoring the display in place (e.g., the rigid member is flexible in one direction (towards the user's head) while providing support or load-bearing in another direction).

[0196] In some forms, the rigid member 32 may be bow-shaped or curved. Curvature may be provided in one or more selected areas of the rigid member to allow it to be easily bent or hinged at that area. The curvature may be a weakened area to achieve flexibility in the rigid member, such that the weakened portion acts as a movable hinge. This flexibility is beneficial for accommodating a wide range of user head sizes. The curved portion may be positioned to allow parts of the rigid member to bend outward toward the user's ear and / or inward toward the center of the user's head.

[0197] In some forms, the rigid member 32 includes multiple slots (e.g., on each side of the arm, i.e., slots on the front and rear sides of the arm), and the multiple slots form multiple hinges along a component (such as the temporal connector 18). The hinges form a flexible portion in each arm. For example, compared to a rigid member arm without any flexible portion, the hinges allow the arm to articulate and conform to minute variations in the cheek area, and distribute the load on the face more evenly when the headband is tensioned. In some forms, where the rigid member extends in a generally longitudinal direction, the hinges and / or weakening regions may extend laterally to the longitudinal direction or may extend in the longitudinal direction to increase permissible conformability.

[0198] In some forms, the slots are typically parallel to each other, generally uniformly spaced, and include similar widths and depths in the thickness of the arm. However, it should be understood that the slots may include other suitable arrangements and configurations to alter the position and flexibility of the arm, such as the number of slots, slots on one or both sides of the arm (front and / or rear), the spacing between slots, their width, depth, and the orientation or angle of the slots on the arm (e.g., slots angled relative to each other to provide different orientations of bending). In examples, one or more of these slots may be filled with a flexible material; for example, a narrow recess or groove formed by the slot may receive the flexible material. In alternative examples, the hinge may be provided by a plurality of flexible segments (e.g., flexible segments formed of flexible or bendable material) spaced apart by rigid segments.

[0199] In some forms, the rigid member 32 may include a material that guides or defines the stretching direction or path of an elastic (e.g., an elastomer and / or fabric) component (i.e., the rear support hoop 16). In other words, the user stretches the positioning and stabilizing structure 14 (see [link to article]) in a direction substantially parallel to the longitudinal axis of the rigid member 32. Figure 7a (dashed lines in the diagram). Tension in other directions of the positioning and stabilizing structure 14 causes undesirable rotation of the rigid member relative to the display unit housing 22. The rigidity of the rigid member causes it to be biased toward its natural, unrotated, untorsed, and undeformed state. To some extent, this makes the positioning and stabilizing structure 14 a self-adjusting head-mounted display system. In this example, the rigid member can be biased to a specific size (e.g., a relatively small fit), and the rigid member can be adjusted for the user's head, for example, by opening or bending outward to proportionally scale the head size, thereby conforming to the shape of the user's head and providing support as needed.

[0200] In some forms, elastic (e.g., elastomers and / or fabrics) components can encapsulate rigid components. For example, fabric can be overmolded onto one side of a rigid component (see, for example, see...). Figure 3eRigid components can be encapsulated within suitable elastic materials (e.g., elastomers and / or fabrics) to improve user comfort and abrasion resistance (see, for example, see...). Figure 3d Fabric can be placed on the user-contact side of the rigid component to provide a soft contact with the user's skin.

[0201] In some forms, the rigid component can be formed separately from the elastic component, and then include a user-contact material (e.g., Breath-O-Prene). TM The protective sleeve (cap or surround) can wrap around or slide onto the rigid member. In alternative embodiments, the rigid member can be made using adhesives, ultrasonic welding, sewing, hook-and-loop materials, and / or stud bolt connections. In one embodiment, the user-contact material (i.e., a soft or comfortable material arranged to contact the user's skin during use, such as Breath-O-Prene)... TM It can be on both sides of the rigid component, or optionally only on the user contact side of the rigid component, to reduce the volume and cost of the material.

[0202] Rigid components can also be formed by applying an additional layer of material, such as silicone, polyurethane, or other adhesive materials, to the elastic component to reinforce it. Silicone beads or polymer overmolding can also be used.

[0203] Rigid components can have a composite structure composed of two or more materials (rigid or semi-rigid materials). For example, a rigid component can be constructed by thickening or treating a fabric to make it stiffer or prevent the material from stretching. In the example, the fabric can be printed such that the ink from the printing restricts or reduces the fabric's ability to stretch. Additionally, the fabric can be stiffened by sewing selected areas together. Furthermore, the fabric can be stiffened by ultrasonic welding in selected areas.

[0204] In some alternative forms, the rigid element may be constructed of a nonwoven material (e.g., a mesh) that resists tension in at least one direction. Alternatively, the rigid element may be formed of a woven material, wherein the texture of the material is aligned so that the fabric does not stretch laterally during use to secure and anchor the positioning and stability of the structure.

[0205] In the example, the rigid component can be made of The display unit housing 22 can be formed from polypropylene (PP). PP is a thermoplastic polymer with good fatigue resistance. This is ideal for forming the rigid member 32 because the material is creep-resistant. Since these materials cannot be integrally bonded, the display unit housing 22 can be overmolded onto the rigid member 32 to form a strong connection, namely, the engagement between the front end 28 of the arm 26 and the rear edge region 20 of the display unit housing 22.

[0206] In alternative forms, rigid components (such as rigid component arms) can be made of TPEs that provide high elasticity. For example, Dynaflex can be used. TM TPE compounds or MD-115. The housing can be made of polypropylene (PP). The advantage of molding rigid components in TPE is that it allows the rigid components and the display unit housing to be permanently connected to each other. In other words, a fusion bond or chemical bond (molecular adhesion) is formed between the two components.

[0207] The joints connecting the rigid members to the display unit housing can provide flexible target points, and the joints can be shaped and formed to allow bending in the desired direction and degree. Therefore, once the head-mounted display system is worn and the temporal arms 26 are stressed by tension from the rear support band 16 of the positioning and stabilizing structure 14, the rigid members 32 can bend at the joints to allow them to maintain the shape of the facial frame while helping to hold the temporal arms 26 in the desired position relative to the user's face.

[0208] Although the rigid component and the display unit housing have been described as permanently connected to each other, it is conceivable that the rigid component (i.e., the temporal arm) can be detached from the display unit housing, for example, via a mechanical clamp (snap-fit) assembly. This arrangement could provide a modular system with replaceable display units and / or positioning and stabilization structures.

[0209] 5.1.1.3 Rear support hoop (or support clamp)

[0210] The rear support structure or hoop 16 may be in the form of a ring-shaped hoop (similar to...). Figure 7bThe rear support hoop 316 shown is in an annular form and is arranged with a three-dimensional contour curve to adapt to or conform to the shape of the back of the user's head, such as the shape of the top of the user's head. In the example, the support hoop provides a hoop-shaped or annular arrangement (e.g., a closed loop) adapted to surround or encircle a portion of the user's head. It should be understood that the support hoop is not limited to annular or circular; for example, the support hoop may be elliptical or partially circular / elliptical or C-shaped. The rear support hoop 16 includes a parietal portion or parietal band portion 38, which adapts in use to the parietal bone adjacent to the user's head, and an occipital portion or occipital band portion 40, which adapts in use to the occipital bone adjacent to the user's head. In the example, the occipital portion 40 is preferably arranged in use along a portion of the occipital bone, for example, along a portion adjacent to or near the junction of the neck muscles to the occipital bone, and the parietal portion 38 is preferably arranged in use posterior to the coronal plane. In the example, the occipital portion 40 is adapted to be positioned along the occipital bone above the junction where the neck muscles attach to the occipital bone. This junction may also be referred to as the external occipital protuberance (EOP). However, the exact location of the occipital portion 40 on the user's head can vary depending on the size and shape of the occipital portion 40 used by the user's head; for example, the occipital portion 40 may be positioned above or below the junction where the neck muscles attach to the occipital bone. In the example, the occipital portion 40 may be positioned below or under the occipital bone near the junction where the neck muscles attach. This hoop-like arrangement of the rear support hoop 16 (e.g., annular, circular, oval, partially circular / oval, or C-shaped) anchors the positioning and stabilizing structure 14 around the back of the user's head or the posterior protuberance, providing an effective support structure to hold the weight (i.e., the display unit) at the front of the user's head. The rear support hoop 16 may be formed of an elastic material that can be used to stretch the hoop and securely hold the rear support hoop 16 in place.

[0211] In the example, the three-dimensional shape of the rear support hoop can be approximately circular, which is suitable for covering the parietal and occipital bones of the user's head during use.

[0212] In the example, the occipital portion 40 engages with the occipital bone to hold the occipital portion 40 and the posterior support clamp 16 in place and to prevent the positioning and stabilizing structure from riding upwards on the back of the user's head. Furthermore, the parietal portion 38 can capture or extend over the upper part of the user's parietal bone, thereby preventing the positioning and stabilizing structure from sliding back down along the user's head.

[0213] The rear support clamp 16 further includes opposing connecting straps or tabs 42 (see, for example, see...). Figure 3a ).

[0214] In the example, the rear support hoop 16 is oriented in a generally vertical direction, that is, arranged in a vertical plane that is generally parallel to the coronal plane. This arrangement of the rear support hoop 16 properly orients the rear support hoop 16 above the user's head to support the lateral (i.e., horizontal) tension applied by the connecting strap 42 and to support the weight of the display unit 12.

[0215] The rear support band 16 and connecting strap 42 can be formed of elastic and / or fabric materials to help conform to the shape of the user's head, for example, the rear support band 16 and connecting strap 42 provide flexibility. Moreover, this elastic and / or fabric material behind the user's head allows for easier lifting of the display unit 12 away from the user's face, for example, when the positioning and stabilizing structure 14 is held on the user's head, to move the display unit 12 away from the user's eyes to speak with someone. For example, the rear support band 16 can be made of neoprene, or other fabric-foam composite materials (e.g., breathable materials, such as multi-layered constructions including outer fabric layers and inner foam layers), or spacer fabric. Advantageously, the fabric can provide a soft support structure to stabilize the display unit 12 on the user's head and allow the positioning and stabilizing structure 14 to cushion against the user's head for optimized comfort.

[0216] The rear support hoop, including the portion of the temporal arm 26, can be stretchable. This allows the positioning and stabilizing structure 14 to be stretched, resulting in a comfortable (or relatively flat) force-displacement (or elongation) profile. In the example, when the positioning and stabilizing structure 14 is stretched apart under a load L, the strain force can be distributed substantially uniformly across the positioning and stabilizing structure 14. Therefore, the positioning and stabilizing structure 14 has a relatively flat force (y-axis) distribution relative to the displacement (x-axis), indicating that the force changes little as the positioning and stabilizing structure 14 extends, particularly compared to prior art structures.

[0217] 5.1.1.4 Adjustable (connecting) straps

[0218] The strap will be understood as a structure designed to resist tension. In use, the connecting strap 42 is part of the positioning and stabilizing structure 14 under tension. In some forms of this technology, the connecting strap 42 can be flexible and, for example, non-rigid. One advantage of this is that the connecting strap is more comfortable for the user to tighten their head.

[0219] As will be described, some of the straps will exert elasticity due to tension. The straps of the positioning and stabilizing structure 14 provide holding force to overcome the effects of gravity on the display unit 12. In this way, the straps can form part of the positioning and stabilizing structure to maintain the display unit in a light-sealed position on the user's head.

[0220] In some forms, the positioning and stabilizing structure 14 provides a holding force as a safety margin to overcome the potential impact of destructive forces on the display unit in use, such as head and body movements, or accidental interference with the display unit. The strap can be configured to guide the force during use to pull the interface surface of the display unit 12 into a sealed contact with a portion of the user's face. In the example, the strap can be configured as a tie.

[0221] exist Figures 3a to 3c In this configuration, the connecting straps 42 are adjustable and operable to change the distance between the rear support hoop 16 and the display unit housing 22 of the display unit 12. Each strap 42 passes through an eyelet 44 in the corresponding temporal arm 26 during use. The length of each strap 42 passing through the corresponding temporal connector 18's plate 36 can be adjusted by pulling more or less (adjusting the length, i.e., adjusting) the strap 42 through the corresponding eyelet 44. The straps 42 can be fastened to themselves, for example, by a hook-and-loop fastening device after passing through the eyelet 44 in the plate 36, allowing for fine or minute adjustments to the straps for comfort and fit (e.g., tightness). Therefore, the distance between the rear support hoop 16 and the display unit housing 22 is adjustable to accommodate different head sizes. This adjustable strap arrangement also allows for adjustment when the display unit 12 is on the user's head; for example, the user can pull the strap 42 to tighten it backward.

[0222] In the example, the thickness and / or width of the posterior support hoop 16 and / or band 42 may vary along at least a portion of their length. For example, the posterior support hoop 16 may include wider and thinner sections along its length, such as adjacent to the wider portion of the band 42, to facilitate connection to the temporal arm 26 and load distribution. The band 42 may also be thinner along its free end to facilitate passage through eyelets 44 in the corresponding temporal arm 26.

[0223] In some arrangements, the strap or rigid member provides a press-fit arrangement. For example, the rigid member may include a portion having multiple holes, and one end of the strap 42 may be provided with a stud adapted to press-fit into a selected hole (e.g., overmolded or ultrasonically welded to the strap). The stud and holes are configured to provide a snap-fit ​​arrangement. In other forms, the strap may be secured to itself via an arrangement of holes and studs.

[0224] In some arrangements, an adjustment mechanism is provided for adjusting the distance between the rear support hoop 16 and the display unit housing 22. The rigid member may include an orifice to allow the strap 42 to form a loop, thereby forming an annular portion of the strap 42. The rigid member may be provided with a pusher, which is spring-preloaded or biased to allow engagement and disengagement of the annular portion of the strap 42. A gripping portion may be provided on the side of the orifice opposite the pusher to allow the user to stabilize the positioning and stabilizing structure on their face. The gripping portion prevents disassembly of the annular portion by preventing it from being pulled back through the orifice.

[0225] In some forms of this technology, more than one positioning and stabilizing structure 14 is provided with the display unit, each positioning and stabilizing structure configured to provide holding force corresponding to different size and / or shape ranges. For example, one form of positioning and stabilizing structure 14 may be suitable for large-sized heads but not for small-sized heads, while another form of positioning and stabilizing structure may be suitable for small-sized heads but not for large-sized heads. In this way, the display unit can be provided with a different set of positioning and stabilizing structures that are suitable for different size and / or shape ranges. Advantageously, the display unit is versatile and can be better adapted and comfortable.

[0226] 5.1.1.5 Modification of the rear support hoop

[0227] 5.1.1.5.1 Extended rigid components

[0228] Figures 5a to 5c A support member for a head-mounted display system or component 210 according to a third example of the present technology is shown. Figures 5a to 5c In the figures, the same reference numerals indicate the same as... Figures 3a to 3c Similar or identical parts, but with an addition of 200 to allow differentiation between examples such as display device 212, positioning and stabilization structure 214, rear support band 216, temporal connector 218, posterior edge region 220, display unit housing 222, parietal portion 238, occipital portion 240, connecting strap 242, etc. In the third example, the support for the head-mounted display assembly 210 does not include a forehead support; that is, the display unit 212 is supported by the positioning and stabilization structure 214 without any forehead support connector or forehead support strap.

[0229] Figure 6 A support member for a head-mounted display system or component 310 according to a fourth example of the present technology is shown. Figure 6 In the fourth example shown, the same reference numerals denote the same as... Figures 3a to 3cSimilar or identical parts, but with an additional 300 to allow differentiation between examples such as display device 312, positioning and stabilization structure 314, rear support band 316, temporal connector 318, display unit housing 322, forehead support connector 324, temporal arm 326, rigid member 332, parietal portion 338, occipital portion 340, and forehead support strap 348. In the fourth example, the support for the head-mounted display system 310 includes opposing temporal connectors 318, each temporal connector 318 having a temporal arm 326, the temporal arm 326 having an extending rigid member 358. Each extending rigid member 358 can extend from the corresponding temporal arm 326 to the rear support band 316 to enhance support for the display unit 312 in use. Each extending rigid member 358 can extend along a portion of the rear support band 316 and can extend into one or both of the parietal portion 338 and the occipital portion 340. For example, each extending rigid member 358 may include, for example, Figure 6 The Y-shaped extension extends into the parietal portion 338 and the occipital portion 340. Alternatively, each extending rigid member 358 may extend into only one of the parietal portion 338 and the occipital portion 340, for example, extending only along the occipital portion 340, as discussed below. Figure 7a As shown. In Figure 6 In the example, the parietal and occipital portions of the extension arms of the rigid member 358 are provided along the parietal portion 338 and the occipital portion 340 of the rear support hoop 316, and the parietal portion 338 and the occipital portion 340 of the rear support hoop 316 are positioned close to the parietal and occipital bones of the user's head to support the corresponding portions of the rear support hoop 316.

[0230] The extended rigid member 358 increases the length of the forehead connector 318, thereby increasing the lever arm moment generated around the rear support clamp 316. In use, the larger lever arm extends the moment of inertia further behind the user's head compared to the first and second examples. Advantageously, this can provide better user comfort by reducing the tension applied to the forehead support connector 324 to support the display unit 312.

[0231] In addition, under the influence of the weight of the display unit 312 and any clamping force exerted by the tension caused by the positioning and stabilizing structure 314, the extension arm of the rigid member 358 can provide a more uniform pressure distribution on the user's head.

[0232] When the forehead support connector 324 is tightened, the extension arm of the rigid member 358 helps prevent the rear support hoop 316 of the positioning and stabilizing structure 314 from moving vertically upwards, i.e., passing through, on the user's head. The extension arm of the rigid member 358 can more effectively secure the occipital portion 340 of the rear support hoop 316 below the corresponding occipital bone of the user's head (e.g., the occipital portion attached to the occipital bone along the junction adjacent to the neck muscles).

[0233] In other words, the occipital portion 340 of the extended rigid member 358 engages with the occipital bone to hold the occipital portion 40 and the posterior support hoop 16 in place during use. Furthermore, during use, the parietal portion 338 of the extended rigid member 358 can capture or extend over the upper part of the user's parietal bone to prevent the positioning and stabilizing structure from sliding back down the user's head.

[0234] In an embodiment, each of the parietal portion 338 and the occipital portion 340 may have different elastic properties in order to provide increased stability for the positioning and stabilizing structures on the user's face during use.

[0235] In the example, the parietal portion 338 may be constructed of a stretchable material to allow for adjustment of the positioning and stabilization structure during use. For example, the parietal portion 338 may be made of an elastic material. The stretchability provided by the elastic parietal portion allows for a more comfortable fit for the user. Additionally, the occipital portion 340 may be made of a material with lower stretchability than the parietal portion 338. That is, the occipital portion 340 may be constructed of a material that stretches less under a given force compared to the material used for the parietal portion 338. This is to secure the positioning and stabilization structure in place while allowing for some adjustment of the display unit's position on the user's face.

[0236] 5.1.1.5.2 Rigid members with offset extension

[0237] Figures 7a to 7c express Figure 6 A variation of the fourth example. In this example, each temporal arm 326 includes an offset extended rigid member 360. Each offset extended rigid member 360 can extend from the corresponding temporal arm 326 to the occipital portion 340 of the posterior support hoop 316, i.e., substantially in a J-shape, to enhance support for the display unit 312 in use.

[0238] The bias-extended rigid member 360 extends along a portion of the occipital bone, for example, along a portion of the occipital bone at the junction of the neck muscles attached to the occipital bone, to reliably anchor the positioning and stabilizing structure 314, thereby supporting the display unit 312 above the user's nose and cheek.

[0239] As in Figure 7a and 7cAs best shown, intermediate and temporal adjustment mechanisms 362, 364 can be provided to the temporal arm 326 and the biased extended rigid member 360. Intermediate adjustment mechanism 362 can be adapted to connect the first biased extended rigid member 360 to the second biased extended rigid member 360, such that intermediate adjustment mechanism 362 is located between the first and second intermediate adjustment mechanisms 362. Intermediate adjustment mechanism 362 can have an adjustable length to control the distance between the opposing arms of the rigid members 360. Intermediate adjustment mechanism 362 can be mounted around the intermediate region of the occipital region between the opposing arms of the biased extended rigid member 360. In one example, intermediate adjustment mechanism 362 can be in the form of a belt passing through opposing holes 363 in the respective rear ends 368 of the opposing arms of the biased extended rigid member 360 (see [link]). Figure 7b The distance between the relative arms of the rigid member 360 can be controlled by pulling more or less of the band 362 through the hole 363.

[0240] Temporal adjustment mechanism 364 can be disposed on each temporal arm 326 along the temporal region of the user's head. Temporal adjustment mechanism 364 can be adjustable and operated to change the distance between the biased extended rigid member 360 and the display unit housing 322.

[0241] The offset extended rigid member 360 can be formed from a flat part and then bent or deformed into a shape suitable for use. For example, the rigid member 360 can be punched from a sheet of material.

[0242] 5.1.1.6 Adjustable support hoop and offset configuration

[0243] Figures 9a to 10c A positioning and stabilization structure 514 for a head-mounted display system 510, according to another example of the present technology, is shown. The head-mounted display system 510 includes a display unit 512, and the positioning and stabilization structure 514 is configured to hold the display unit 512 in an appropriate position on the user's face.

[0244] The positioning and stabilizing structure 514 includes: a support hoop 516, which is positionable between the frontal and temporal bones of the user's head; and a corresponding connector 518 disposed on the corresponding side of the user's head, interconnecting the support hoop 516 to a corresponding rear edge region 520 of the display unit housing 522. In the example shown, when in use, the connector 518 connects to a portion of the support hoop 516 at a location closer to the mid-coronal plane than to the anterior coronal plane of the head.

[0245] Each connector 518 includes an arm 526 having a front end 528 mounted to the rear edge region 520 of the display unit housing 522 and forming part of a coupling 564 to connect the arm 526 to the rear end 530 of the support clamp 516.

[0246] The support band 516 may have a three-dimensional contour curve to fit or conform to the shape of the user's head. The support band 516 includes a front portion 538 (also referred to as a front support or anterior support portion) and an occipital portion 540 (also referred to as a back support or posterior support portion). The front portion 538 is arranged generally on the frontal or parietal bones, or between the frontal and parietal bones (e.g., contacting the frontal region of the user's head), and the occipital portion 540 is arranged generally on the occipital or parietal bones, or between the occipital and parietal bones (e.g., contacting the posterior region of the user's head). The occipital portion 540 is preferably arranged along a portion of the occipital bone (e.g., along a portion of the occipital bone adjacent to the junction where the neck muscles attach to the occipital bone), and the front portion 538 is preferably arranged anteriorly in the coronal plane, extending through the supraauricular attachment point. In the illustrated example, the front portion 538 and the occipital portion 540 extend transversely in the sagittal plane. For example, as... Figures 10a to 10c As shown, the anterior or anterior support portion 538 of the support band 516 is adapted to extend in or be located in plane 539, and the occipital or posterior support portion 540 of the support band 516 is adapted to extend in or be located in plane 549, and each of planes 539 and 549 is adapted to extend transversely to the sagittal plane. In the example, plane 549 may be referred to as the first plane and plane 539 may be referred to as the second plane, merely for the purpose of distinguishing between planes 549 and 539. That is, although the terms "first" and "second" may be used, unless otherwise stated, they are not intended to indicate any order, but are simply used to distinguish different elements, such as planes.

[0247] The anterior portion 538 and the occipital portion 540 may be rigid components and include an adjustment mechanism 562. Specifically, the rigid components of the anterior and occipital portions may be any type of rigid member or rigid member arm described above. In the example, the anterior portion 538 and / or the occipital portion 540 may include multiple slots (e.g., on one or both sides of the anterior portion 538 and / or the occipital portion 540) that form multiple hinges along the components, for example, see [link to relevant documentation]. Figure 9a and 9b A slot 543 in the occipital portion. A hinge forms a flexible portion in the anterior portion 538 and / or the occipital portion 540. The hinge allows the anterior portion 538 and / or the occipital portion 540 to articulate and adapt to minor changes in the user's head, and to distribute the load on the head more evenly.

[0248] In some forms, the adjustment mechanism 562 may be arranged on one or both rigid arms, and / or at the connection point between the anterior portion 538 and the occipital portion 540. The adjustment mechanism 562 may be adjustable and operated to move the anterior portion 538 and the occipital portion 540 relative to each other. In some forms, the adjustment mechanism 562 may be adjustable and operated to change the distance between the anterior portion 538 and the occipital portion 540 (e.g., the distance between the planes 539, 549 of the anterior portion 538 and the occipital portion 540) or the displacement 545 (e.g., offset), such as... Figure 10b (As shown). In some forms, the adjustment mechanism 562 may be adjustable and operable to change the angle between the anterior portion 538 and the occipital portion 540.

[0249] In some configurations, the anterior portion 538 and the occipital portion 540 may be hinged around the adjustment mechanism 562 of the support hoop 516, such that the anterior portion 538 may rotate forward or backward relative to the coronal plane, and the occipital portion 540 may be raised or lowered relative to the Frankfurt plane.

[0250] In some forms, the anterior portion 538 and the occipital portion 540 may be hinged to adjust the distance between them. In some forms, the adjustment mechanism 562 may include a sliding component, wherein at least one anterior portion or occipital portion may slide between an inline position and at least one offset position. In the inline position, the anterior portion is coplanar with the occipital portion. In at least one offset position, the anterior portion lies in an offset plane (i.e., non-coplanar) of the occipital portion. The offset plane may be parallel to or not parallel to the plane of the occipital portion.

[0251] The adjustment mechanism 562 may further include a guide 566 for guiding one of the anterior or occipital portions relative to each other when they move between an inline position and an offset position. The guide 566 may take the form of an elongated slot disposed in either the anterior or occipital portion, and a corresponding guide pin disposed in the other. The guide 566 allows the corresponding guide pin to move within the elongated slot for sliding adjustment.

[0252] In some forms, guide 566 provides cam and sliding motion to the anterior and occipital portions. The guide can take the form of a straight line, an arcuate slot, or other variations to introduce additional motion between the anterior and occipital portions. Furthermore, guide 566 can be arranged at a specific angle relative to the Frankfurt plane to adjust the motion of the anterior and occipital portions 538, 540.

[0253] The adjusting mechanism 562 allows the anterior portion of the hoop 516 and the occipital portions 538, 540 to be configured in any of the following arrangements or combinations: parallel and coplanar, parallel and offset, angular to each other, and angular to the temporal arm. Some advantages of the above combinations are described below.

[0254] Reference Figure 10a The diagram illustrates an inline configuration where the anterior portion 538 is arranged in the same plane as the occipital portion 540, as shown by the dashed lines. Specifically, plane 539 formed by the anterior portion 538 of the clamp 516 is coplanar with plane 549 formed by the occipital portion 540 of the clamp 516. The anterior and occipital portions can be moved relative to each other, for example, from the inline configuration to one or more offset positions, where planes 539 and 549 are not coplanar. Reference Figure 10b and 10c This illustrates the offset structure, where the anterior portion 538 has been offset to a plane that is different from but parallel to the plane of the occipital portion 540. (See diagram below.) Figure 10b and 10c As shown, the anterior portion 538 may deviate more or less from the occipital portion 540 (e.g., offset configuration forming the distance or displacement 545 between plane 549 (e.g., a first plane) and plane 539 (e.g., a second plane), and the adjustment mechanism allows selective adjustment of the distance or displacement. That is, in Figure 10b and 10c In this case, the plane 539 formed by the anterior portion 538 of the hoop 516 is offset from or not coplanar with the plane 549 formed by the occipital portion 540 of the hoop 516. In the example, such as... Figure 10b As shown, offset planes 539 and 540 can be substantially parallel to each other, but are spaced apart by displacement 545, such that plane 539 and plane 540 are not straight lines (i.e., substantially parallel but not coplanar). In an optional example, such as Figure 10c As shown, the offset plane may not be parallel; that is, plane 539 is arranged at a certain angle to plane 549.

[0255] In some forms, the anterior and occipital portions are constrained into a parallel configuration, meaning these portions cannot rotate out of this parallel configuration. Examples of such a configuration include... Figure 10b and 10c As shown. Figure 11a and 11b They are shown respectively Figure 10b and 10c The corresponding schematic diagram.

[0256] refer to Figure 11aThe schematic representation shows an inline configuration, i.e., no offset between the anterior and occipital portions 538, 540. In this configuration, the counterclockwise torque Mw is generated by the weight Fw of the display unit 512 and its horizontal displacement D2 from the pivot point 541 of the display system located at the contact area of ​​the anterior portion 538 of the support hoop 516 (i.e., Mw = Fw × D2). Since the anterior and occipital portions 538, 540 are aligned, no internal torque is generated within the anterior and occipital portions to assist or resist the resistance provided by the positioning and stabilizing structure 514; i.e., no clockwise torque is generated by the anterior and occipital portions. By comparison and reference Figure 11b When an offset (i.e., displacement D1) is introduced between the anterior and occipital regions, a corresponding clockwise torque Mt (i.e., Mt = Ft × D1) is generated in the hoop 516, which helps to counteract the torque Mw caused by the display unit 512 on the system.

[0257] exist Figure 11b In the parallel and offset configurations, the gap introduced between the anterior and occipital regions generates a clockwise torque Mt, which counteracts the counterclockwise torque Mw generated by the display unit 512 on the user's face. Advantageously, this structure can balance the torques applied to the system 510, thereby improving user comfort during wearing positioning and stabilization.

[0258] In addition, such as Figures 11a to 11c As shown, the position of pivot point 541 indicates the length D2 of the torque arm of the torque Mw induced by display unit 512. However, when this pivot point 541 moves forward on the forehead (under different adjustments of support hoop 516), the surface on which the front portion 538 is positioned becomes more vertical. While this reduces the induced torque, it may require increased clamping pressure on the support hoop to resist downward sliding of the support hoop 516 along the surface. Therefore, achieving a balance between these competing criteria allows for a more optimized solution that contributes to user comfort and fit. In one example, the front portion 538 (e.g., providing pivot point 541) is configured and arranged to engage the user's head along the upper part of the frontal bone or along a portion of the parietal bone (e.g., above the user's forehead in cases where the head shape is not very vertical), which allows for a reduction in force to prevent the positioning and stabilizing structure from slipping off the front of the user's head under the weight of display unit 512 during use. This reduction in force provides improved comfort while stably supporting the display system. In the example (e.g., see...), Figure 13a A forehead support 25 (e.g., a forehead pad) may optionally be provided to the display unit to provide a light-load contact point on the user's forehead, for example, to increase stability. In this example, the forehead support will apply less force than the front 538, for example, to avoid discomfort at the forehead (e.g., red marks on the skin).

[0259] In some other forms, such as Figure 11c As shown, in addition to being offset from the front portion 538, the occipital portion 540 can be angled independently relative to the front portion 538. Adjusting the angle of the occipital portion 540 to become more vertically oriented allows the occipital portion 540 to more effectively apply downward loads to the positioning and stabilizing structure. Advantageously, this can more effectively balance the load on the display unit 512, resulting in a more stable positioning and stabilizing structure. Furthermore, adjusting the angle of the occipital portion 540 can more effectively anchor the occipital portion to the user, i.e., the unique shape of the user's head. In this example, adjusting the angle of the occipital portion 540 increases the offset between the front portion and the occipital portion (i.e., displacement D1+), which increases the clockwise torque Mt in the hoop 516 (i.e., Mt = Ft × D1+) to more effectively help resist the torque Mw induced in the system by the display unit 512.

[0260] In some other forms, the front portion 538 may be angled (or moved) independently relative to the occipital portion 540. Angling the front portion allows the center of gravity of the head-mounted display system to be optimally positioned on the user's head. Advantageously, controlling the position of the center of gravity helps balance the torque load on the head-mounted display system, and thus improves the stability of the positioning and stabilizing structure. In use, this prevents the head-mounted display system from sliding down the user's face.

[0261] like Figures 9a to 10c As shown in the embodiments, the occipital portion 540 may further include an intermediate adjustment mechanism. In some forms, the adjustment mechanism is in the form of a connecting strap 542. For example, as... Figure 10a As shown, the strap 542 can be installed around the posterior and middle regions of the occipital portion 540, passing through the corresponding holes 563 in the corresponding posterior ends 568 of the opposite arms of the occipital portion 540 (similar to...). Figure 7b (362) of the binding straps.

[0262] The strap 542 may be formed of an elastic material to help conform to the shape of the user's head. In some forms, the distance between the rear ends 568 can be manually controlled, i.e., changed by pulling more or less strap through the holes 563. Both the elastic and manually controlled methods are used to maintain positive pressure on the occipital region 540, thereby maintaining the positioning and stabilizing structure during use. Advantageously, the strap 542 maintains tension in the positioning and stabilizing structure during dynamic loading situations (e.g., when the user moves their head and body while operating the head-mounted display unit 512).

[0263] In some configurations, the intermediate adjustment mechanism does not support the torque load of the display unit 512. In this configuration, the front and occipital portion are configured to balance the head-mounted display on the user's head, thus eliminating the need for the strap 542 to support the torque load applied by the display unit 512. In this way, the intermediate adjustment mechanism is separated from the support load in the positioning and stabilization structure.

[0264] like Figure 12a and 12b As shown, the positive pressure, or preload, applied to the positioning and stabilizing structure by the strap 542 holds the occipital portion 540 of the support band 516 close to the occipital bone of the user's head. The load applied by the occipital portion 540 can be small enough to counteract the dynamic load applied to the head-mounted display during use and not to apply excessive pressure to the user's occipital bone. The tension applied to the strap 542 helps prevent the head-mounted display from slipping along the user's face during use.

[0265] For example, Figure 12a A first example of the preload applied by the strap 542 is shown. In this configuration, the counterclockwise torque Mw is generated by the weight vector Fw of the display unit 512 and its horizontal displacement D2 from the pivot point 541 of the display system (i.e., Mw = Fw × D2), and the clockwise torque Mt is generated in the hoop 516 via the tension vector Ft and the offset between the anterior and occipital portions 538, 540 (i.e., displacement D1) to resist the torque Mw. Furthermore, an additional force vector Fb is generated by the inward bending of the occipital portion 540 (through the preload applied by the strap 542), which generates an additional torque Mb (i.e., Mb = Fb × D3). Therefore, the torques Mt and Mb together more effectively help resist the torque Mw induced by the display unit 512 on the system.

[0266] Figure 12b A second example of preload applied by strap 542 is shown. In this configuration, the counterclockwise torque Mw is generated by the weight vector Fw of the display unit 512 and its horizontal displacement D2 from the pivot point 541 of the display system (i.e., Mw = Fw × D2), and the clockwise torque Mt is generated in the hoop 516 via the tension vector Ft and the offset between the anterior and occipital portions 538, 540 (i.e., displacement D1) to resist the torque Mw. Furthermore, an additional force vector Fb2 is generated by outward bending of the occipital portion 540 (through the preload applied by strap 542), which generates an additional torque Mb2 (i.e., Mb2 = Fb2 × D3). In this example, the torque Mt resists the torques Mw and Mb2 induced in the system.

[0267] In some forms, the intermediate adjustment mechanism may include a rigidly constrained elastic portion. For example, the rigidly constrained elastic portion is installed around the posterior, middle region of the occipital portion 540 and passes through opposing holes 563 in each rear end 568. The length of the rigidly constrained elastic portion can be manually controlled, i.e., adjustable, to increase or decrease the distance between the rear ends 568, and thus adjust the dimensions of the positioning and stabilizing structure to accommodate different shapes and / or forms of the head.

[0268] The elastic portion of a rigid constraint comprises an elastic component and a non-elastic component. The two components are joined together, such that the elongation of the elastic component is limited by the length of the non-elastic component. In some forms, the elastic component is shorter than the non-elastic component in length, allowing the elastic component to elongate until its elongation equals the length of the non-elastic component. For example, when the elastic portion of a rigid constraint is installed in use on a positioning and stabilizing structure, the user can apply dynamic loads to the head-mounted display, such as jumping and moving around, and the elastic component applies sufficient tension to the user's head to prevent the positioning and stabilizing structure from slipping. If the user applies excessive dynamic loads to the head-mounted display, the non-elastic component prevents the occipital portion 540 from moving away from the user's head, i.e., loosening the fit, and ensures that the head-mounted display does not slip off the user's head.

[0269] Reference Figure 12c The positioning and stabilizing structure 514 offers height adjustment in a way that provides intuitive fit and adjustment. Furthermore, this structure provides responsive stability to accommodate the user's dynamic movements. Another feature of this design is that the reaction force generated by the display unit 512 is adapted by the front and occipital portions 538, 540, while still allowing for fine, independent adjustment of the display unit. Specifically, the adjustment of the display unit 512 in the forward and backward directions controls the contact pressure of the interface structure on the face (e.g., adjusting until the forehead pad provided to the interface structure gently contacts the face), the adjustment in the front portion 538 helps accommodate different head sizes and the position of the display unit 512 in the up-down position (e.g., earphone-type adjustment relative to the ear (e.g., self-leveling contact)), while the adjustment of the occipital portion 540 helps to match the position of the contact point and the amount of reaction torque generated, contributing to comfort and load distribution in the positioning and stabilizing structure 514 (e.g., the occipital portion 540 provides a combination of characteristics: rigidity for controlling the direction of pull, compliance for comfort and grip, elasticity for automatically maintaining a fit, and connection with selectable adjustments).

[0270] Reference Figure 13bThe forehead support connector 524 may also include a forehead support rigidity 556. In some forms, the forehead support rigidity may be pre-tensioned to apply a torque load to the positioning and stabilizing structure 514, which causes the display unit housing 522 to rotate inward, i.e., rearward toward the user's face during use (as indicated by the arrow). Advantageously, the display unit housing 522 is guided toward (or toward) the user's face without requiring the positioning and stabilizing structure 514 to be tightened by the strap 542 to pull the display unit toward (or toward) the user's face. The torque load generated by the pre-tensioned forehead support rigidity 556 acts similarly to a spring load on the display unit 512. Figure 13b Schematic lines 566 and 568 illustrate the corresponding load and non-load conditions applied to the rigid member 556. Under load conditions (line 566), the positioning and stabilizing structure is used on the user's head, where the display unit 512 is pushed toward the user's face, and the rigid member 556 behaves like a leaf spring, deflected away from the user's face. In the unloaded or un-loaded state (line 568), the rigid member 556 is preloaded to deflect the display unit housing 522 inward in preparation for receiving the user's face.

[0271] 5.1.1.7 Central Support Structure

[0272] Reference Figures 14a to 14b Another embodiment of a positioning and stabilization structure 614 for a head-mounted display system 610 is disclosed. The head-mounted display system 610 and... Figures 9a to 13b The difference in the illustrated embodiment is that the head-mounted display system 610 further includes a central support structure 662, such as a hub component, which is arranged to be positioned around the user's ear. In the illustrated example, the central support structure 662 may include a central portion or hub of a positioning and stabilizing structure 614 connected to the anterior portion 638 and / or the occipital portion 640.

[0273] In the example, hub 662 is rotatably connected to front portion 638 (also referred to as front) and / or occipital portion 640 (also referred to as rear). Front and occipital portions are hinged about hub 662 so that front portion 638 can rotate forward or backward, for example, relative to the coronal plane, while occipital portion 640 can be raised or lowered relative to the Frankfurt horizontal plane.

[0274] See Figure 14b Examples of two possible configurations of the front portion 638 relative to the hub 662 are shown. In the first example (shown in solid lines), the front portion 638 is configured near the parietal bone. In the second example (shown in dashed lines), the front portion 638 is configured near the frontal bone.

[0275] In some forms, the front portion 638 may be angled (or moved) independently relative to the occipital portion 640. The front portion may be adjusted to move toward the center of gravity of the display system. In some forms, the occipital portion may move up or down to abut against the occipital bone support positioning and stabilizing structure of the user's head. In some other forms, the occipital portion 640 may include a type of counterweight (w) to balance the display unit 612 (e.g., see...). Figure 14a and 14b ).

[0276] Reference Figure 14c In use, the hub 662 can guide the force (i.e., force vector) applied around the user's ear by the front portion 638 and the occipital portion 640. For example, in some forms, the occipital portion 640 can be hinged around the hub 662 to a position offset and parallel to the front portion 638. In this configuration, the force applied to the occipital portion 640, i.e., the vector, can be translated around the periphery of the hub 662 and through the front portion 638.

[0277] Now for reference Figure 14d In some forms, hub 662 may also be rotatably connected to display unit 612. Display unit may be hinged about hub 662 to allow rotation, i.e., movement relative to the Frankfurt horizontal plane. For example, the display unit may be raised or lowered relative to the user's eyes. That is, the positioning and stabilizing structure may allow upward (e.g., above) pivoting movement of the display unit to allow movement to a non-operating position without removing the positioning and stabilizing structure (e.g., flip-up). In some forms, the pivoting movement (or pivoting motion) of the display unit involves a pivoting arrangement (or pivoting motion) including the positioning and stabilizing structure. In some forms, this pivoting arrangement may provide a release mechanism at the forehead support connector (e.g., a release mechanism that releasably locks the display unit in an operating (i.e., lowered) and non-operating (i.e., raised) position) and / or a limited hinge area at the temporary connector (e.g., a limited hinge area that may restrict the hinged movement of the temporary connector, e.g., at the connection to the display unit).

[0278] In some configurations, the hub 662 can accommodate some of the weight of the display unit 612, thereby creating a pivot axis for the head-mounted display system 610 around the user's ear and in the mid-coronal region. This reduces the load on the front and facilitates angle adjustment of the display unit 612 around the hub 662.

[0279] Examples of two possible configurations of the display unit 612 are shown in Figure 14dAs shown in the diagram. In the first example, the display unit 612 is positioned in front of the user's eyes, i.e., generally parallel to the Frankfurt horizontal plane. In the second example, the display unit is shown in an elevated position above the user's eyes, i.e., at an angle relative to the Frankfurt horizontal plane. Advantageously, moving the display unit 612 between these two positions allows the user to remove the display unit 612 from their eyes during use (e.g., playing games) or before putting on and taking off the head-mounted display system 610.

[0280] In some forms, the audio device (A), i.e., headphones (e.g., noise cancellation), may be located on hub 662 (see...). Figure 14b Audio device A can be configured, for example, to releasably engage with hub 662 around a snap-fit ​​feature. In some forms, audio device A can be placed on hub 662 during use to enclose the user's ears.

[0281] 5.1.1.8 Materials and Composite Materials

[0282] In one form of this technology, the positioning and stabilizing structure 14 includes a strap constructed from a laminate of an elastic (e.g., elastomer and / or fabric) skin contact layer, a foam inner layer, and a fabric outer layer. In other words, the positioning and stabilizing structure 14 includes at least one strap 14. In one form, the foam is porous to allow moisture (e.g., sweat) to pass through the strap. In one form, the fabric outer layer includes a loop material to engage with a hook material portion, i.e., a tab portion 54. In some forms of this technology, the skin contact layer is made of a material that helps to wick moisture away from the user's face. This helps maintain comfort if the user sweats while wearing the user interface.

[0283] In one form of this technology, a positioning and stabilizing structure 14 is provided, configured to have a low profile or cross-sectional thickness to reduce the perceived or actual volume of the device (or display system). In one example, the positioning and stabilizing structure 14 includes at least one strap 14 having a generally rectangular cross-section. In another example, the positioning and stabilizing structure includes at least one strap with a profile having one or more rounded edges to provide greater comfort and reduce the risk of strap marking or irritation to the user.

[0284] In some forms, the straps of the positioning and stabilizing structure 14 may be at least partially made of or comprise at least one synthetic polymer, such as nylon and / or polyurethane (e.g., Lycra). Furthermore, the straps may comprise different layers of, for example, different materials. The different layers may be welded together. In an example, the straps may comprise different layers of different materials, for example, an outer layer made of an aesthetically pleasing material and / or an inner layer made of a soft and / or pleasing material facing the user's head. For example, the straps forming the top part of the band may be made of inexpensive and / or comfortable materials. In another example, reference... Figure 28 and 29 The strap (e.g., strap 14) may include an inner layer 17 of low-density polyurethane foam with a thickness of 2.5-4.0 mm, and an outer layer 15 configured to surround the inner layer 17. The outer layer 15 may be formed of a laminate made of nylon, polyester, another similar material that can be made to provide a soft outer surface, or a mixture thereof. The laminate may include one or more layers. In some forms, the outer layer 15 may be formed of a mixture of nylon and polyester. Therefore, the choice of strap material can improve the comfort of the strap.

[0285] In some forms, the outer layer 15 of the straps of the positioning and stabilizing structure 14 may include an elastic member made of elastic nylon braid, which is configured to slide freely (or longitudinally) on the inner layer 17, which serves as a rigid member (e.g., Figure 28 The rigid member (i.e., inner layer 17) can be used as a frame (or support) for the strap 14 and can be formed of a material such as TPE, which is advantageously both lightweight and provides controlled flexibility.

[0286] In the example, the straps can be a single-layer component, such as an elastomer / fabric. Alternatively, the straps can be composite or multi-layer components, such as fabric and foam composites, or an outer fabric layer and an inner spacer fabric. The straps can be made of elastic fibers or elastic fiber / foam composites, or can be formed from other suitable materials, such as 3D spacer fabrics or double-knitted interlocking fabrics.

[0287] The materials used for the straps and / or different layers of different straps can be selected depending on specific characteristics / functions / requirements. In the example, the straps for positioning and stabilizing the structure can be BPA-free. It can be used at least for the strap portion.

[0288] In some forms, it is desirable that at least one material of the straps used for positioning and stabilizing the structure be breathable. In another example, the straps may be formed from a breathable neoprene substitute. For example, the neoprene substitute may have inner and outer elastic layers comprising a porous, four-way stretchable fabric. The inner layer is designed to draw moisture away from the skin surface via capillary action, while the outer fabric is designed to receive moisture. Hooked loop fabric.

[0289] The fabric on the user-contact side is preferably the same as the fabric on the non-user-contact side, so that the tensile properties of the strap are approximately equal on both sides. Furthermore, it is preferable that the fabric on the user-contact side has the same heat-shrinkage properties as the non-user-contact side. This is to prevent uneven deformation of the positioning and stabilizing structure when handled, exposed to heat, or otherwise thermoformed.

[0290] The fabric on the user-contact side can be a different fabric than that on the non-user-contact side, making the fabric on the user-contact side more comfortable than that on the non-user-contact side.

[0291] The straps can be cut from sheet material (e.g., flame-laminated) or from rolls of narrow elastic (e.g., elastomers and / or fabrics) straps, then thermoformed and ultrasonically welded to produce rounded edges, and then ultrasonically welded together. The straps can have a geometry that allows them to be nested on sheets to increase yield; for example, the geometry can be substantially linear.

[0292] In some forms, the positioning and stabilizing structure may include straps configured as individual components. Thus, the positioning and stabilizing structure can be constituted by a strap assembly, i.e., a strap assembly. For example, strap 48 may be connected to the top bone portion 38, for instance, via a welded joint. The individual components may be combined together during manufacturing. Alternatively, the straps of the positioning and stabilizing structure may be configured as a single piece or made from a single piece. In another example, strap 48 and top bone portion 38 may be cut from a single sheet of material.

[0293] Designing the strap components separately allows for greater flexibility in manufacturing them, which helps increase throughput and simplify the manufacturing process. Furthermore, the design of the strap components allows for less material waste when cutting from sheet material, such as due to the generally rectangular shape of the top bandage. Additionally, manufacturing the strap components as separate parts allows for the substitution of cheaper, more comfortable, and / or aesthetically pleasing materials.

[0294] By using different materials, different strap thicknesses, and / or different components, the width of the straps in the positioning and stabilizing structure 14 can be further reduced, and thus the floor space can be reduced. Different materials and / or cheaper materials can be used for some components or sections of the structure 14, for example, with the same support and / or comfort. In the example, the top part of the hoop can have increased thickness compared to the occipital part. This can increase comfort. In addition, the smaller overall size of the occipital part of the hoop allows the user to bend their head backward toward their spine with additional degrees of freedom of movement (e.g., in the posterior direction).

[0295] The joint between adjacent strap sections can be constructed as a thinned area or thinned connection to facilitate bending. The thinned area can serve as a bend or hinge (e.g., a movable hinge) to provide increased flexibility when needed. The bend or hinge can be reinforced using heat-fused seam tape, a thinner layer of fabric with an adhesive backing, or other reinforcing methods.

[0296] The hinge-like feature of this connection allows the strap to better adapt to the shape of the user's head. A combination of linear and non-linear joints can be used to achieve the desired level of flexibility and bending direction, as well as the desired level of three-dimensional shaping, to form a component consisting of a series of parts originally made of a flat material (such as fabric or paper). This shaping can include darts, pleats, gathering, or curved seams.

[0297] In some examples, materials with different degrees of flexibility can be combined in an alternating manner to form controlled flexible regions. Components can be stacked one on top of another and ultrasonically welded together with no space between them. User interface components can be made of soft materials, such as soft fabrics.

[0298] In the example, the forehead support connector 24, which extends through the user's frontal bone to connect to the support band 16, can be joined together by welding, for example, by ultrasonic welding. In the example, portions of the forehead support connector 24 and the band 16 can overlap. These components can be placed in an ultrasonic welding tool.

[0299] The advantages of ultrasonic welding are that flush or butt joints do not increase the thickness of the components at the joint and are visually appealing, unlike stitching where components must overlap, resulting in uneven thickness. Even when the edges of two or more components are butt-jointed and stitched without any or minimal overlap to form a stitch, the stitch will produce a rougher, harder, and raised joint. Furthermore, flush or butt joints formed by ultrasonic welding result in a smooth connection, which reduces skin irritation, abrasions, or facial marks, even when reinforced with seam reinforcement tape. The advantage of using overlapping ultrasonic welding variations is that multiple components can be joined in a single operation within a single machine. Additionally, the ultrasonic welding process can be designed so that the joint appears as a thinner area or section between components.

[0300] In one embodiment, the bandage can be thermoformed and then its edges can be ultrasonically cut. The thermoformed and ultrasonically cut bandage provides rounded edges, which offer significantly reduced facial imprints during use. Furthermore, the thermoformed and ultrasonically cut edges are softer and have less friction, providing a more comfortable feel on the user's face during use, such as around the user's ears.

[0301] In another embodiment, at least a portion of the positioning and stabilizing structure may be made of spacer fabric, wherein the edges of the spacer fabric may be ultrasonically welded. This allows the edges of the spacer fabric to be rounded, thereby reducing facial marks and increasing user comfort.

[0302] In embodiments, one or more aspects of the positioning and stabilizing structure can be configured to improve comfort. For example, the rigid element can be relatively thin. In another example, the strap may include a nylon rigid element encapsulated in foam. In such embodiments, the density of the foam can be increased to improve comfort and reduce the chance of feeling the nylon rigid element. Alternatively, the thickness of the foam can be used to change the softness or roundness of the strap edges. For example, a thicker foam layer is more likely to produce rounder corners than a thinner foam layer. In another embodiment, the foam can start at one thickness and be compressed to another thickness during processing.

[0303] In one embodiment, the foam on the user-contact side may have a lower density or lower stiffness than the foam on the non-user-contact side. It may also have more than one foam layer and more than one component.

[0304] In some alternative embodiments, the rigid component may include a semi-rigid molded part, which is overmolded with a soft polymeric material such as TPE or TPU. The polymeric material provides a softer material that comes into contact with the user's face during use. In some forms, the molded part may have a soft-touch feel or a flocked coating.

[0305] In some forms of this technology, the positioning and stabilizing structure can be formed with a biocompatible material as the outer surface, such as silicone rubber, fabric laminate, etc. Biocompatible materials can be non-toxic and reduce any risk of skin reactions.

[0306] In some forms of this technology, the positioning and stabilizing structure may be formed of a durable material that can withstand daily use, including repeated disassembly and cleaning.

[0307] In some forms, the reduction in the overall weight of a head-mounted display can be proportional to a reduction in one or more of the following: (a) the number of components; (b) the stiffness of the positioning and stabilizing structure; (c) the stiffness of the interface structure; and (d) the ability to adjust features of the head-mounted display, such as the ability to adjust, for example, the positioning and stabilizing structure or the interface structure.

[0308] For example, foams (such as polyurethane foam or viscoelastic foam) or foam-like components can be lighter and more flexible than silicone components. In another example, spacer fabrics comprising lightweight materials such as textiles can be used to bridge and stabilize parts of a structure, helping to reduce weight. However, where some stiffness is required, the use of silicone or TPE (e.g., in rigid frame components) may be appropriate.

[0309] 5.1.1.9 Forehead Support Layout

[0310] refer to Figure 3a The forehead support connector 24 of the positioning and stabilizing structure 14 can be connected to the upper edge region 21 of the display unit housing 22. In some forms, the connector 24 can, for example, surround the forehead support 25 (see, for example, see...). Figure 13a Connected to the display unit housing 22, the forehead support can be adjusted to allow the positioning and stabilization structure to adapt to the user's facial configuration.

[0311] 5.1.1.9.1 Forehead Support

[0312] Now for reference Figure 13a The forehead support 25 can be connected to the upper edge region 21 of the display unit housing 22, and in some forms can be mechanically coupled to the forehead support connector 24. The support 25 may include a forehead contact portion 27 adapted to contact the user's forehead to support and stabilize the load of the display unit 12.

[0313] The forehead support 25 can be configured to be substantially straight or can be curved. When the connector (i.e., the forehead support 25) is curved, the curvature typically follows the curvature of the user's forehead. While this is the most likely configuration, the use of a forehead support 25 with the opposite curvature or any combination thereof is also within the scope of the invention. The forehead support 25 can be made of a thermoplastic material.

[0314] The forehead support 25 can be positioned at an angle approximately parallel to the user's forehead to provide improved comfort. Advantageously, this can reduce the likelihood of pressure sores that may result from uneven placement. In use, some users' anatomy may require the forehead support 25 to be positioned higher above the forehead. In such cases, the placement angle of the support 25 can be adjusted to suit the user.

[0315] The forehead support 25 may have one or more openings. These openings may be suitable for a variety of purposes, including connection points to the housing, connection points to any other support surface, connection points for securing the head-mounted display to a user's strap (e.g., forehead support strap 48), and openings for forehead contact portions (e.g., forehead contact pads (or forehead pads)).

[0316] In some forms of the forehead support 25, openings are designed to receive the forehead pad. The openings can be arranged around the forehead support 25 in a manner that allows the user to adjust the position of the forehead pad.

[0317] The opening is also designed to allow the user to securely attach the forehead pad to the forehead support 25. In some forms, the opening is designed to allow the user to securely and reversibly attach the forehead pad to the forehead support 25. In some forms, the forehead pad is adapted to releasably engage with the forehead support 25.

[0318] In one form, the forehead pad is typically plate-shaped or disc-shaped. In other forms, the pad may have a concave surface corresponding to a raised portion of the user's forehead during use. Possible shapes for the base of the forehead pad include rectangular and elliptical.

[0319] In one form, the forehead pad may include one or more portions. In an embodiment, two base portions of the forehead pad are provided so as to be positioned above the user's left and right eyebrows.

[0320] 5.1.1.9.2 Forehead contact area

[0321] The forehead contact portion 27 includes a forehead contact surface 29, which, in the use position, is located on the user's forehead area. In some forms, the forehead contact portion 27 may be made of an elastomeric material.

[0322] The contact surface 29 may optionally include a raised surface pattern. This pattern reduces the likelihood of a suction effect on the surface, thereby reducing blood draw in the area and making the contact portion more comfortable. The raised pattern has the added benefit of reducing perspiration. In another embodiment, the surface may be sandblasted to improve ventilation and reduce the likelihood of perspiration.

[0323] In some forms, the contact surface 29 may have cut-off portions to improve the flexibility of the contact portion. Another advantage of the cut-off portions is that the contact portion 27 can better adapt to the rolling and twisting of the display unit on the user's face during use. Another advantage of the cut-off portions in the contact portion is that they can reduce the impact of a single pressure point on the forehead, such as reducing discomfort.

[0324] In some forms, the contact portion includes a sheath defining a hollow chamber filled with a viscous medium, such that the wall of the sheath forming the contact surface 29 is substantially subjected to the pressure of the viscous medium on its side opposite to the user's forehead region. The hollow chamber filled with the viscous material can be used as a contact portion between the user and other components of the positioning and stabilizing structure, such as a support clamp portion, and can also be used in interface portions.

[0325] In some forms, the forehead contact portion may comprise materials including rubber and flexible plastics. In some embodiments, the contact portion is made of cured liquid silicone rubber or silicone with suitable hardness. These examples are merely illustrative and are not intended to be limiting in any way.

[0326] 5.1.1.9.3 Forehead Support Connector Strap

[0327] like Figures 3a to 3c The forehead support connector 24 of the positioning and stabilizing structure 14 includes a forehead support strap 48 arranged generally along or parallel to the sagittal plane of the user's head. The strap 48 is adapted to connect between the upper edge region 21 of the display unit housing 22 and the parietal portion 38 of the rear support band 16. In one example, the strap 48 may be non-adjustably connected (e.g., by welding) to the parietal portion 38, and the strap 48 may be adjustably connected to the display unit housing 22 via an adjustment mechanism 50.

[0328] The strap 48 is adjustable to allow for size control of the forehead support connector 24. (As...) Figure 3a and 3c As shown, the end or tab 54 of the strap 48 passes through the forehead support hole 52 in the upper edge region 21 of the display unit 12. The strap 48 can be secured to itself, for example by a hook-and-loop fastening device, after passing through the hole 52 in the display unit 12, allowing for fine or minute adjustments to the strap for comfort and fit (e.g., tightness). In one example, the forehead support strap 48 may comprise a material similar to the rear support band 16 and / or connecting strap 42, such as a fabric-foam composite material (e.g., a breathable material, for example, a multi-layered construction comprising an outer fabric layer and an inner foam layer).

[0329] The forehead support connector 24 supports the weight of the display unit 12. The length of the strap 48 between the upper edge region 21 of the display unit 12 and the parietal portion 38 of the band 16 can be adjusted by pulling more or less of the strap 48 through the hole 52. Therefore, the strap can be adjusted to raise or lower the position of the display unit 12 relative to the user's nose, for example, to adjust the angle or raise the display unit 12 relative to the user's face. Advantageously, this adjustment can move the display unit housing 22 away from the user's nose to reduce pressure felt on the face, nose, and / or cheeks. The forehead support connector 24 secures the display unit 12 in place so that the display unit does not slide downwards or laterally on the user's head.

[0330] In one example, the thickness and / or width of the forehead support band 48 may vary along at least a portion of its length; for example, the forehead support band 48 may include wider and thinner sections along its length to facilitate connection and load distribution.

[0331] In one example, the adjustment mechanism 50 is positioned during use so as not to contact the user's frontal bone region.

[0332] In an optional example, the positioning and stabilizing structure 14 does not include the forehead support connector 24 / forehead support strap 48, for example, see [link to example]. Figures 5a to 5c Examples.

[0333] Figures 4a to 4c A support member for a head-mounted display system 110, according to a second example of the present technology, is shown. Figures 4a to 4c In the figures, the same reference numerals indicate the same as... Figures 3a to 3c Similar or identical parts, but with an additional 100 to allow differentiation between examples such as display device 112, positioning and stabilizing structure 114, rear support band 116, temporal connector 118, posterior edge region 120, display unit housing 122, forehead support connector 124, temporal arm 126, parietal portion 138, occipital portion 140, connecting strap 142, forehead support strap 148, adjustment mechanism 150, forehead support hole 152, end portion 154, etc. See reference. Figure 4c The forehead support connector 124 may also include a forehead support rigidity 156. The forehead support rigidity 156 can provide further stability and support for the display unit 112 above the user's nose and cheeks, i.e., reduce pressure on the user's nose and cheeks. The rigidity 156 may be connected to the upper edge region 121 and form at least a portion of the forehead support hole 152 to receive the end of the strap 148 or the tab portion 154 for positioning and stabilizing the dimensional adjustment of the structure 114. As shown, the forehead support strap 148 is arranged below the forehead support rigidity 156 for comfort and load distribution.

[0334] In some forms, the adjustment mechanism 150 may also include an angle adjustment mechanism for easily raising the sunshade from the used position to the retracted position, i.e., the unused position.

[0335] In one example, the system can be configured and arranged to redistribute one or more components from the display unit to a positioning and stabilizing structure, for example, to redistribute weight from the display unit to the positioning and stabilizing structure. For instance, forehead support rigidity 156 and / or forehead support strap 148 can be used to at least partially support one or more non-positioned basic electrical components, such as batteries or hard drive storage, to shift weight from the front of the user's head to a more central location, i.e., to balance the weight of the display unit. In an alternative example, one or more components of the display unit can be at least partially supported by rear support clamp 116 and / or temporal connector 118 to redistribute weight.

[0336] 5.1.2 Interface Structure

[0337] The user interface can be partially characterized by where the interface structure engages with the face in use, based on the design intent. Some interface structures may be limited to engaging with areas of the user's face that protrude beyond the curvature arc of the facial engagement surface of the interface structure. These areas typically include the user's forehead and cheekbones. This may cause discomfort for the user at localized pressure points. Other facial areas may not engage at all through the interface structure, or may engage only in a negligible manner, potentially insufficient to increase the translational distance of the clamping pressure. These areas typically include the sides of the user's face, or areas adjacent to and surrounding the user's nose. Depending on the degree of mismatch between the shape of the user's face and the interface structure, one or both may form appropriate contact or other relationships.

[0338] In some embodiments of this technology, the interface structure may include a single sealing element that, in use, covers a portion of each of the nasal ridge region, the frontal bone region, and the left and right infraorbital margin regions of the face. In some embodiments, the interface structure may be designed for mass production. For example, the interface structure may be designed to comfortably fit a variety of different facial shapes and sizes.

[0339] Reference Figure 8 In one embodiment of this technology, the head-mounted display system 410 further includes an interface structure 411 that provides a face interface or face engagement portion 413, which is arranged to engage with and be in relative relation to the user's face during use. In some embodiments, the interface structure 411 may provide a buffering function to improve the overall comfort of the user. In some embodiments, the face interface 413 may be arranged to at least partially block light from entering the display unit housing 422 during use.

[0340] Interface structure 411 extends around the display housed in display unit housing 422. Interface structure 411 may extend around the display and define an viewing opening for the display. In an example, face interface 413 extends around the user's eyes and may engage with the user's face, for example, along the user's nose, cheeks, and / or forehead (e.g., light-sealed).

[0341] The positioning and stabilizing structure 414 can be connected to the display unit housing 422, thereby holding the interface structure 411 of the present invention in an operable position on the user's face. In some alternative forms, the positioning and stabilizing structure 414 can be attached to a portion of the interface structure 411, thereby securing the interface structure 411 of the present invention in an operable position on the user's face.

[0342] Figure 15aA front sectional view of another embodiment of the interface structure 611 in use is shown, wherein the interface structure 611 is otherwise generally formed to be symmetrical on either side of the central axis AA. An example of the interface structure 611 is shown on the left-hand side of the central axis AA, as it can be positioned in use to engage with the user's face, generally around the periphery of the user's eyes. An example of the user's face below the interface structure 611 is shown on the right-hand side of the central axis AA, illustrating the facial area that can contact the interface structure 611 in use. More broadly, the interface structure 611 can be formed on the craniotomy muscle 601, on the user's sphenoid bone 603, across the outer cheek region 605 between the sphenoid bone 603 and the left or right zygomatic arch 607, above the zygomatic arch 607, across the inner cheek region 609 from the zygomatic arch 607 toward the pterygoid ridge 619, and on the nasal ridge 617 below the user's nasal bridge point, to enclose a portion of the user's face therebetween.

[0343] Interface structure 611 provides a substantially continuous facial interface or facial engagement surface 613 surrounding the periphery of the user's eyes. That is, the facial interface or facial engagement surface 613 is adapted to contact the user's face in the following areas: the area above the superior canthus and sphenoid bone; the outer cheek area across the sphenoid bone and the left or right zygomatic arch; above the zygomatic arch; across the inner cheek area from the zygomatic arch towards the pterygoid ridge; and on the nasal ridge below the user's nasal bridge point, to enclose a portion of the user's face therein. In other words, interface structure 611 provides continuous contact (e.g., at least light-sealing) around the entire area of ​​the user's eyes to prevent or at least reduce the entry of unwanted light. In this respect, the substantially continuous facial interface or facial engagement surface 613 may be contoured and / or angled along its periphery to conform to or closely follow the contour / facial profile of the patient's face.

[0344] In use, the interface structure 611 can be pressed against the user's face (e.g., via positioning and stabilizing structures), and the interface structure 611 is configured and arranged such that the compressive force or load applied to the user's face is distributed or dispersed around its periphery, so that the load is not concentrated on a minimum number of contact points. Furthermore, the interface structure 611 includes varying flexibility around its periphery, which is configured to allow forces to be selectively distributed onto the user's face. For example, the interface structure may include a first compliance at a first region and a second compliance at a second region, and the first and second regions are configured around the periphery of the interface structure to allow forces to be selectively distributed onto the user's face. This arrangement allows a higher level of pressure distribution on areas of the user's face more suited to absorbing pressure, such as the canthus and sphenoid bone.

[0345] In some forms of this technology, a system is provided in which the interface structure is integrally formed with the display unit housing. In some forms of this technology, for example... Figure 15b ,16a In the embodiments shown in 16c, 18, 19, and 20a to 20d, a system is provided in which the interface structures are formed as separate removable components configured to be integrated with and held by the display unit housing, thereby engaging and being in relative relation to the user's face during use. That is, the display unit housing can provide a common frame configured and arranged to removably hold each of a plurality of interface structures (each corresponding to a different size and / or shape range and / or material type) to allow for the exchange of variations of the interface structures based on adaptation or user preference.

[0346] refer to Figure 8 When the interface structure 411 is formed as a removable component, multiple embodiments of the interface structure 411 can be formed, each configured to correspond to a different range of sizes and / or shapes. For example, the head-mounted display system 410 may include a form of interface structure 411 suitable for large heads. This may not be suitable for users with smaller heads and may therefore result in reduced comfort and performance. An interface structure 411 suitable for small heads may not be suitable for large heads and may similarly result in reduced user comfort and performance. Therefore, a removable interface structure 411 can be advantageous because it allows users to customize the head-mounted display system 410 and select the interface structure 411 best suited to their individual facial simulation features. In some further embodiments, users can measure their facial simulation features to customize the design and formation of a suitable interface structure 411. The removable interface structure 411 also allows for applications such as medical uses, where the structure 411 may be disposable or allow for individual cleaning to accommodate surgical procedures.

[0347] Reference Figure 15b When the interface structure 611 is formed as a removable component, it may be formed as a chassis 621 comprising a rigid or semi-rigid material, the chassis 621 being configured to facilitate engagement with the display unit housing 622. For example, in some embodiments, the chassis 621 may be formed of a plastic material. The chassis 621 may include one or more engagement elements 623 surrounding its periphery, the engagement elements 623 being configured to detachably engage with corresponding elements disposed on the display unit housing 622. Suitable engagement elements may include one or more of clips, fasteners, magnets, or Velcro fasteners, provided that the number and placement of the engagement elements used in any given embodiment ensure that the chassis 621 and the display unit housing 622 are relatively fixed to each other without allowing significant slippage between them. For example, as Figure 15a and 15b As shown, the engaging element 623 can be two clips spaced laterally apart from each other, positioned on opposite symmetrical sides of the central axis AA. Figures 16a to 16c A similar coupling element 723 is shown. In some other embodiments, in addition to the clips formed on the upper part of the chassis during use, a series of recesses may be formed on the lower part of the chassis during use. As those skilled in the art will understand, other combinations of coupling elements are also considered to be within the scope of this technology. In some further embodiments, the display unit housing may include a groove that engages with the outer periphery of the chassis to provide additional vertical support for the coupling elements and further reduce relative movement between the display unit housing and the interface structure.

[0348] The chassis 621 serves as the base for the rest of the interface structure 611. Additionally, the chassis 621 can provide some rigidity and necessary structure for the interface support structure 615 of the interface structure 611, and is also provided to the face interface or face mating surface 613 via the interface support structure. The chassis 621 can be adhesively joined to the support structure 615, or in some embodiments mechanically joined to the support structure 615, wherein the method of joining the chassis 621 to the support structure 615 depends on the composition of the materials and their specific structure. The chassis 621 is generally laterally flexible across the user's face. In some embodiments, the curvature can generally correspond to the curvature of the user's face. In some embodiments, for example in Figure 16b In this embodiment, the curvature of the chassis 721 can be relatively small, with the support structure 715 formed to extend from it to bridge the distance to the user's face, and thus having a varying depth laterally across the user's face. In other words, the support structure 715 can extend to a greater depth in the region adjacent to the side of the user's face compared to a smaller depth formed in the region near the central axis AA of the user's face. In some embodiments, the chassis 621, 721, 821 can advantageously maintain the same size and shape, while the remainder of the interface structures 611, 711, 811 can vary to provide multiple modular embodiments, or modular embodiments custom-designed to suit the user's individual facial simulation features.

[0349] In some embodiments, two or more of the face-joining surfaces of the chassis, support structure, and interface structure may be integrally formed as a single component, the single component comprising varying thicknesses and finishes across it to provide a desired level of rigidity at the chassis or a desired level of cushioning at the face-joining surface. For example, in some such embodiments, the interface structure may be formed from a single silicone body. In alternative embodiments, the interface structure may be integrally formed as a single component from a foam or elastomeric material.

[0350] In some embodiments, chassis 721 may be formed as a component separate from the rest of interface structure 711, which is manufactured as a single integral body (e.g., see...). Figures 16a to 16cFor example, in some embodiments, one or more regions of the face interface or face engagement surface 713' may be formed together around the periphery of the interface structure 711' as an inwardly projecting flange-like edge (e.g., membrane or flap) extending from the support structure 715' (e.g., see FIG. 17A). Alternatively, in some embodiments, the face engagement surface 713" may be supported by a spring-like support flange 725" that originates from the support structure 715" and is substantially concealed beneath the face engagement surface 713" (e.g., see FIG. 17A). Figure 17b For example, both the support flange 725” and the support structure 715” can be formed of silicone, wherein the material thickness of the support flange 725” is thinner than that of the support structure 715”, thereby providing a more compliant yet resilient spring-like support for the portion of the interface structure 711” that engages with the user’s face. In some embodiments, the face engagement surface 713” may loosely cover the support flange 725”, such that each face engagement surface can independently respond to compressive pressure applied during interaction with the user’s face in use. In some embodiments, the covered face engagement surface 713” may be coupled to the support flange 725”, whereby they effectively form a single body that uniformly responds to compressive pressure applied during interaction with the user’s face in use.

[0351] The face contact surface 713 may include one or more silicone areas, or one or more layers of fabric material or foam. One or more areas of the face contact surface 713 may be formed with varying thickness and / or varying surface finish, thereby the resulting face contact surface 713 may have variable conformability when pressed against the user's face during use.

[0352] Some or all of the facial engagement surfaces 713 may be areas of (relative) reduced friction. When silicone is used, this can be achieved by providing a so-called frosted surface. With areas of reduced friction, the sealing surface can adhere to the user's face compared to the case without such areas. For example, areas of reduced friction can be provided to allow the sides of the user's nose to slide freely along the facial engagement surface 713. Similarly, fabric or foam materials with a (relatively) reduced friction outer surface finish can be used to form part or all of the facial engagement surfaces 713.

[0353] Some or all of the facial engagement surface 713 may be areas of (relative) high friction. When silicone is used, this can be achieved by providing a so-called polished surface. With areas of high friction, the sealing surface can adhere better to the user's face compared to a case without reduced friction areas, thereby reducing slippage of the display unit housing 722. Similarly, fabric or foam materials with a (relative) high-friction outer surface finish may be used to form part or all of the facial engagement surface 713.

[0354] In some embodiments, one or more different regions of the face-fitting surface 713 may be formed with different finishes or different levels of friction to optimize the gripping and holding performance of the face-fitting surface 713 while also improving user comfort (e.g., one or more regions having a frosted surface and one or more regions having a polished surface). In some embodiments, a combination of two or more materials may be used to form the entire face-fitting surface 713, with different materials used in different regions. This can improve the holding force of the display unit housing 722 while also enhancing user comfort.

[0355] In some embodiments, the heat absorption properties of the face-fitting surface can be improved by using silicone materials, thereby improving user comfort.

[0356] Reference Figure 18 and 19 The support structure 715 may be formed to include one or more distinct regions 715', 715'', which have different thicknesses and / or further support by adding reinforcing ribs 715''. In some regions, the support structure may be thinner 715'', or generally provide less compressive resistance, such as in regions adjacent to the user's zygomatic arch, cheekbone, and nose. In some other regions, the support structure may be thicker 715'', or generally may be configured to provide greater compressive resistance, for example, in regions adjacent to the user's forehead or sphenoid bone. In some embodiments, the thickness of the support structure 715 may vary incrementally thereon, rather than as distinct regions with a single thickness. In some embodiments, the reinforcing ribs 715'' may be formed as wide regions of thicker material, while in other embodiments, the reinforcing ribs 715'' may be formed as strap-like supports made of narrow and / or less compliant material.

[0357] The thinner regions of the support structure 715 can provide a more compliant yet resilient padding support for the upper face-fitting surface 713. For example, in some embodiments, the thinner regions may be formed of a silicone material with a thickness of 0.3-0.5 mm. Conversely, the thicker regions of the support structure 715 can provide a less compliant, more resistant, and relatively rigid structural support for the upper face-fitting surface 713. For example, in some embodiments, the thicker regions may be formed of a silicone material with a thickness of 1.5-2 mm. By forming the support structure 715 from multiple different thicker and thinner regions or a mixture of progressively thicker regions, the load resistance of the support structure 715 can be optimized. Therefore, in use, the overall compliance of the interface structure 711 at any given point around the user's face can be a result of the characteristics of the chassis 721, the support structure 715, and the face-fitting surface 713.

[0358] In some embodiments, it may be advantageous for the interface structure 711 to be compliant with a balance of elasticity and rigidity so as to disperse the resistance applied by the mating structure 711 when compressed against a user's face during use. Additionally, it may be advantageous to provide an interface structure 711 in which the translational distance of the compressive pressure applied when interacting with a user's face during use is dispersed over an area of ​​the user's face more suited to absorbing pressure, rather than allowing the load to be locally concentrated on a minimum number of contact points. Thus, the overall compliance of the disclosed interface structure 711 can be configured to allow the facial mating surface 713 to be molded to a user's face. This can advantageously reduce the area of ​​the facial mating surface 713 spaced apart from the user's face, or the area that does not fully interact with the user's face, to facilitate the dispersion of pressure. For example, refer to... Figure 15a The user's upper cheekbone 601 and sphenoid bone 603, in the area below the temporal region, can withstand a higher level of pressure, while the area on either side of the user's zygomatic arch 607 can withstand a lower level of pressure. Furthermore, for some areas, it is preferable to receive only relatively light pressure or no pressure at all, such as on the zygomatic arch 607 itself or on the user's nasal ridge 617. In areas that can only withstand light or are substantially free of pressure, it is advantageous that the facial engagement surface 713 is highly compliant so that it interacts gently there, thereby reducing or preventing unwanted light from entering.

[0359] In some further embodiments, the interface structure 811 may include a discrete chassis 821, a support structure 815, and a face mating surface 813 (see, for example, see...). Figures 20a to 20d For example, the face-fitting surface 813' can be formed as a foam pad 829' directly attached to the upper portion 827 of the support structure 815 (see, for example, see...). Figure 21aThe upper part 827 of the support structure 815 may be formed to extend inward from the periphery of the wall of the support structure 815 as a spring-like flange, which is used to support the face mating surface 813' to prevent bending during use.

[0360] In some alternative embodiments, the face-joining surface 813” covers the upper portion 827 directly attached to the support structure 815 (e.g., see...). Figure 21b The foam pad 829” is positioned below the face contact surface 813”. For example, the face contact surface 813” may be loosely supported or at least partially bonded to the foam pad 829”. In another form, the face contact surface 813” may extend at least partially over or beyond the foam pad 829”. The foam pad 829” can serve as a spring-like compliant but somewhat resilient pad support concealed beneath the face contact surface 813”. In such embodiments, the material in contact with the user's face can be easier to clean than foam, thus improving the hygiene of the interface structure 811.

[0361] The foam pad (e.g., foam pad 829', foam pad 829") can be made of any suitable material, such as one or more of the following example materials: polyethylene, PU, ​​EVA. In some cases, the foam pad can be a semi-open closed-cell foam, such as foam made of polyurethane. The semi-open-cell foam pad can have limited permeability, for example, permeability characteristics in the range of about 0 to 20 liters / minute. The cross-section through the foam pad can take a substantially triangular or pear-shaped shape, with a sealing surface that follows the contours of the user's face. The foam used can define the physical properties of the entire interface structure 811. The foam can allow the interface structure 811 to adapt to major variations and successfully conform to the contours of the user's face. The compliant properties of the foam pad can also provide micro-adjustments and thus form a comfortable interface layer when interacting with the user's skin.

[0362] In another example of this technology, the foam padding 829” can be fixed (removably or permanently) to the support structure 815, or in some further embodiments, directly fixed to the chassis 821. The foam padding 829” can be configured to have varying stiffness along its different areas in order to increase user comfort.

[0363] In some forms of this technology, the face-contacting surface of the interface structure may include a pad formed of a semi-compressible material, such as dense foam (e.g., polyurethane foam or viscoelastic foam) or other similar materials, such as rubber, which can be formed to be generally elastically compressible while resisting compression to some extent. The resulting semi-rigid but elastically compressible pad may additionally be formed to maintain a curvature with a relatively small radius, thereby providing a "one-size-fits-most" user interface pad.

[0364] In some forms of this technology, the interface structure can be sized within a range of width and / or shape to be customizable to the user's facial simulation features. For example, refer to... Figure 22 The interface structure 911 may include two adjustable face-engaging surfaces 913', each face-engaging surface 913' located on a corresponding side of the left-hand and right-hand sides of the interface structure 911. Each adjustable face-engaging surface 913' may be slidably movable relative to each other and movable relative to a substantially rigid chassis 920. The total width W of the interface structure 911 may increase when the adjustable face-engaging surfaces 913' are slidably moved away from each other. The total width W of the interface structure 911 may decrease when the adjustable face-engaging surfaces 913' are slidably moved toward each other. In some embodiments, the interface structure 911 may also include two static face-engaging surfaces 913'", one spanning the user's nose region and the other spanning the user's forehead region. Each of the two static face-engaging surfaces 913' may be configured to have sufficient length such that the corresponding distal ends 914' of the two static face-engaging surfaces 913' overlap with the corresponding distal ends 914' of the adjustable face-engaging surfaces 913'. Thus, the adjustable and static face-fitting surfaces 913', 913" can together form a functionally continuous interface structure 911 surrounding the user's eyes. The resulting interface structure 911 can provide an improved fit to the user's individual facial features, which advantageously improves the ability of the interface structure 911 to increase the translational distance of the clamping pressure applied to the user's face when the structure is firmly fixed and stabilized. This also improves the comfort of the interface structure 911 and reduces the occurrence of localized pressure points. In some further embodiments, the static face-fitting surfaces 913" can be formed with a shape and length such that they can also shield the interior of the display unit housing 922 to prevent unwanted light from entering. In some further embodiments, the static face-fitting surfaces 913" can be formed with a shape and length that creates an air gap between the static face-fitting surfaces 913" and the adjustable face-fitting surfaces 913'. This can advantageously improve the breathability and comfort of the head-mounted display system 910.

[0365] In some embodiments, the adjustable face engagement surface 913' can be moved relative to the chassis 920 or the display unit housing 922 by correspondingly adjusting the relative position of the program lens 923 within the display unit housing 922. For example, refer to Figure 23a and 23b The relative position of the axes DD and EE of the eyepiece 923 through the display unit housing 922 can be adjusted. In some embodiments, adjustment can be made by moving a sliding tab protruding outward from the display unit housing 922. Since the distance between the user's eyes can be proportional to the width of the user's head, adjusting the relative position of the eyepiece 923 can also provide appropriate adjustment of the width of the interface structure 911. For example, the relative position of the axes DD and EE through the eyepiece 923 can be adjusted from a wider width XX ( Figure 23a Move to a narrower width YY( Figure 23b Therefore, the total width of the face bonding surface 913' is also reduced from the wider width XX'. Figure 23a The distance decreases proportionally from the narrower width YY'. Figure 23b Similarly, eyepiece 923 can be viewed from a narrower width YY ( Figure 23b Move to a wider width XX ( Figure 23a This reduces the total width of the face-joining surface 913' from the narrower width YY'. Figure 23b The distance increases proportionally to the width XX'. Figure 23a In some embodiments, the facial engagement surface surrounding the nose bridge 931 can also be adjusted to move via the relative position of axes DD and EE through the eyepiece. For example, when the interface structure 911 is moved to a narrower configuration (e.g., Figure 23b When the nose bridge 931 is adjusted to narrow and positioned within the space between the eyepieces in the display unit housing 922, or when the interface structure 911 is moved to a wider configuration (e.g., Figure 23a When the nose bridge is adjusted to be wider, it can be removed from the space between the eyepieces in the display unit housing 922.

[0366] In some alternative embodiments, the adjustable mating surface can be moved relative to the chassis via a uniquely configured adjustment mechanism, such as a sliding tab or rack and pinion adjustment mechanism.

[0367] The contours of the sides of the nose, including the area above the nasal bone, the frontal process near the maxilla, and the lateral cartilage, can be highly variable among users. Furthermore, the bridge of the nose may be particularly sensitive when force is applied through the interface structure. Additionally, avoiding obstruction of the user's airway during use is important. Therefore, an interface structure can be formed to prevent the application of compressive pressure to the nasal region. (See reference) Figure 15a and 15bThe chassis 621 includes a nose bridge 631 that effectively leaves a gap within the other substantially continuous facial engagement surfaces 613. The nose bridge 631 may be formed wider and deeper than the user's nose to avoid one or more of the potential problems described above. In some further embodiments, the nose bridge 631 may be generally saddle-shaped. The nose bridge 631 may be formed as a continuation of the rest of the facial engagement surface 613, or in some embodiments, the nose bridge 631 may be formed as a discontinuous portion of the facial engagement surface 613. In embodiments where the nose bridge 631 is a discontinuous portion, the nose bridge 631 may be formed as removable. This can advantageously improve the ease of cleaning the nose bridge 631. Figures 16a to 16c and Figures 20a to 20d Exemplary nose bridges 731 and 831 are also shown.

[0368] For example, in some embodiments, the face engagement surface 1013 of the nose bridge 1031 disposed on the chassis 1021 may be formed of a flexible material capable of easily and elastically bending inward, such as flap 1033, to accommodate the user's nose (e.g., see...). Figure 24 In use, the flap 1033 can be positioned on the side of the user's nose bridge. In some embodiments, the facial engagement surface 613 of the nose bridge 631 can be formed as a cover of loose material that allows the user's nose to enter without applying any significant resistance. Alternatively, in some embodiments, the facial engagement surface 613 of the nose bridge 631 can be formed from a portion of a highly stretchable and compressible material, such as one or more of fabric or foam.

[0369] Typically, the interface structure according to this technology may be made of one or more materials, such as silicone, fabric, or foam. For example, in some forms of this technology, the interface structure may include a viscoelastic polyurethane foam layer. In another example, in some forms of this technology, the interface structure may include a liquid silicone rubber (LSR) layer overlaid onto a polycarbonate or nylon chassis.

[0370] In some forms of this technology, the interface structure is made of a biocompatible material, such as silicone rubber.

[0371] In some forms of this technology, one or more portions of the interface structure may be formed to be substantially opaque. In some further forms of this technology, one or more portions of the interface structure may be colored matte black. This is beneficial for reducing unwanted light from entering through the interface structure itself.

[0372] It should be understood that the choice of materials can affect the compressibility, flexibility, and / or elasticity of the interface structure. For example, different foams with different densities will have correspondingly different compression properties. Furthermore, different silicone materials with different thicknesses or flexibility will have different compression properties.

[0373] In some forms of this technology, the interface structure may be made of a biocompatible material, such as silicone rubber. In some further forms, the facial engagement surface of the interface structure may be removable. For example, the facial engagement surface may be a removable, disposable, or washable cap.

[0374] The interface structure has advantages in one or more forms of this technology. For example, in addition to the advantages mentioned above, the human facial structure can include variations between individuals, which presents a challenge when designing a facial interface surface that can accommodate many facial variations. These variations can include different shapes of facial structures (e.g., different shapes of noses and / or different curvatures of cheeks) and / or different tissue contents (e.g., more or less adipose tissue). These variations may cause the interface structure to work well for one person but poorly for another. Moreover, perceived comfort can vary between individuals independently of facial structure.

[0375] In some forms of this technology, the interface structure may also include one or more forehead interface structures. The forehead interface structure may be adapted to engage with the user's forehead above the display unit housing. The forehead interface structure may also be integrated with positioning and stabilization structures, or exist as a separate area of ​​the interface structure.

[0376] Medical applications

[0377] The positioning and stabilizing structure and / or interface structure may be adapted to include biocompatible materials, where multiple components of the positioning and stabilizing structure and interface structure may come into contact with, for example, a user's skin during use. Designing the positioning and stabilizing structure and interface structure to include such materials aims to protect the user from potential biological risks arising from the use of the structure.

[0378] 5.1.2.1 Biocompatibility of Materials

[0379] According to ISO 10993-1, biocompatible materials are considered materials whose biological responses to use safety have been adequately evaluated. When used, the evaluation considers the nature and duration of expected contact with human tissues. In certain forms of this technology, materials used for positioning and stabilizing structures and interface structures may undergo at least some of the following biocompatibility tests:

[0380] Cytotoxicity-elution assay (MeM extract): ANSI / AAMI / ISO 10993-5; Skin sensitization: ISO 10993-10

[0381] Irritation: ISO 10993-10

[0382] Genotoxicity - Bacterial Mutagenicity Test: ISO 10993-3

[0383] Implants: ISO 10993-6

[0384] 5.1.2.2 Cleaning

[0385] In some forms, the positioning and stabilization structures, as well as the interface structures, are designed for use by a single user and for cleaning in the user's home, such as washing with soapy water, without requiring specialized equipment for disinfection and sterilization.

[0386] In some other forms, the positioning and stabilization structures and interface structures are used in laboratories, clinics, and hospitals, where a single head-mounted display system can be reused on multiple individuals or used in medical procedures. In each laboratory, clinic, and hospital, the head-mounted display system or its associated components may be reprocessed and exposed to processes such as heat sterilization, chemical sterilization, and sterilization. Therefore, sterilization and disinfection validation of the design of the positioning and stabilization structures and interface structures may be required according to ISO 17664.

[0387] Materials capable of withstanding reprocessing can be selected. For example, robust materials can be used to position and stabilize the structure to withstand exposure to high levels of disinfectant solutions and agitation with a brush. Furthermore, some components of the positioning and stabilizing structure are detachable and can be disassembled during use to improve reprocessing efficiency.

[0388] In another example, the contacts of the forehead support connector 24 will come into contact with the user's head during use and may therefore become soiled. The contacts may be designed to be removable from the forehead support connector 24 to provide the ability to remove them for cleaning and / or replacement. It may be desirable to clean the contacts without wetting the positioning and stabilizing structure. This can be facilitated by allowing these components to be disconnected for such purposes. In another example, the back support band may come into contact with the user's hair or skin when worn. Therefore, the back support band is preferably made of an easy-to-clean material and is further designed to be removable from the positioning and stabilizing structure for independent cleaning.

[0389] 5.1.3 Materials

[0390] The surfaces of the interface structure or positioning and stabilizing structure that engages with and interacts with the user's head may be shaped and have material properties that help reduce point loads and pressure-induced markings and / or hot spots on the user's head. See also Figure 30 In some forms, the resulting interface surface 1110 of the mating structure 1108 can distribute the pressure load P over a larger surface area of ​​the user's head 1120. Therefore, the shape and material properties of the mating structure 1108, and especially the shape and material properties of the interface 1110, can provide improved comfort for the user.

[0391] Similarly, in some forms, the geometry of the edges of the interface surface can be shaped to follow a profile that, in conjunction with the overall shape and material properties of the interface surface, helps to match the contours of the user's head and thus distributes pressure loads more effectively, thereby improving user comfort. For example, the mating surface 1110 may have a curved profile edge 1112, which helps to distribute the contact load over a larger surface area, thereby reducing the likelihood of point loads forming pressure-induced marks and / or hot spots on the user's head (e.g., Figure 30 and 31 ).

[0392] Generally, an increase in surface area can be associated with reduced pressure and less user discomfort, as force can be distributed over a larger contact area. However, the total surface area of ​​the interface needs to be optimized with trade-offs relative to the overall size, volume, and weight of the interface structure, which can have adverse effects on the user when wearing a head-mounted display. For example, if the contact surface is too large, the user may experience claustrophobia or muscle pain in the neck and shoulders due to the increased weight.

[0393] Furthermore, in some forms, it is important that the interface surface provides comfort to the user based on the general appearance and feel of the outer surface when touched or worn during use. For example, user comfort can be advantageously improved by reducing sharp edges, or even eliminating sharp edges that come into contact with the user. In another example, it may be advantageous to form the interface outer surface from a non-abrasive material, a cool or moisture-wicking material (e.g., sweat), or a material that does not irritate the user's skin and / or a breathable material.

[0394] Therefore, the material properties of the interface surface, whether it is the interface structure or the positioning and stabilization structure, can affect the user's overall comfort.

[0395] For example, in some forms, it is advantageous to have a strap with a joining structure 1108, such as a positioning and stabilizing structure, which can flexibly twist T to conform to the contours of the user's head (e.g., Figure 31 The ability to conform the interface surface to the user's head increases the total contact surface area, which helps distribute tension forces over a larger contact area and reduces uncomfortable pressure points.

[0396] In other forms, the joining structure may include flexible materials, such as foam or fabric, where, unlike thermoplastic materials, the interface surface can more easily adapt to and form around the curves and contours of the user's head. For example, this material property is beneficial for positioning and stabilizing the structure 1114 around the user's head 1122 (e.g., Figure 32The upper cross portion of the positioning and stabilizing structure 1114 may be advantageous. When not in use, portion 1116 of the positioning and stabilizing structure 1114 will not bend sufficiently to engage with the upper portion of the user's head 1122, and thus can bend elastically without damaging the positioning and stabilizing structure 1114 in order to conform to and help distribute the pressure load on the user's head.

[0397] In some forms, the joint structure can be elastic, allowing for a more uniform force distribution across the entire interface surface. See, for example, [link to relevant documentation]. Figure 33 When the straps of the positioning and stabilizing structure 1134 are stretched apart under a load L, the strain force can be distributed substantially evenly along the length of the straps. Therefore, the elasticity of the straps has a relatively flat force (y-axis)-displacement (x-axis) curve, indicating that the force does not change much when the joint structure extends (or displaces).

[0398] In some other forms, discrete regions, segments, or portions of the interface structure or positioning and stabilizing structure may be configured to exhibit increased flexibility compared to the rest of the positioning and stabilizing structure. For example, refer to Figure 34 The area 1144 of the interface structure 1142 is located near a more sensitive area of ​​the user's face (e.g., the bridge of the nose) or near a facial protrusion 1140 (e.g., the cheekbone). This area may include viscoelastic foam or a similar material that may allow for increased local compliance.

[0399] In some forms, the foam used in interface structures or positioning and stabilizing structures can be formed with a density in the range of approximately 55 kg / m³. In other forms, the density can be in the range of approximately 50-55 kg / m³. In other forms, the foam density can be in the range of approximately 55-60 kg / m³. In other forms, the foam density can be in the range of approximately 45-65 kg / m³. Depending on the precise requirements of the foam, the density can also be higher or lower. For example, the foam density can be varied in interface structures or positioning and stabilizing structures to accommodate areas of greater compliance or areas of greater stiffness.

[0400] 5.1.4 Anthropometry Data Model

[0401] The geometry of a head-mounted display system can be designed with reference to anthropometry data models. Anthropometry data models can be developed from a set of three-dimensional head shapes. These models can be used to represent structures based on, for example... Figures 25a to 25b The head shape variations shown (e.g., Figure 25b The image shows the size adjustment and clustering of the target head geometry with varying first three components, based on, for example... Figures 26a to 26b The nominal facial area size adjustment shown (e.g., Figure 26bThe example shows shape variations in the eye / nose region with the first four components changing, and based on... Figures 27a to 27b The size adjustment of anthropometry landmarks shown (e.g., correlations between 2D landmarks, such as the relationship between eye position and facial width at the eye socket, etc.) Figure 27b As shown in the figure.

[0402] For example, anthropometry data models can be used to determine the dimensional requirements of the interface structure. These requirements can take into account variations in head shape and facial features based on anthropometry landmarks. Furthermore, relationships between facial landmarks can be derived from the data; for example, the relationship between eye position and face width. Advantageously, the interface structure can be constructed to accommodate these variations.

[0403] In another example, an anthropometric data model can be used in conjunction with a software application (such as a mobile phone application) to compare a user's head to a 3D scan and identify their head size. In this example, the user can operate their mobile phone's camera to generate a 3D scan. The software application can then inform the user of their head size compared to the anthropometric data model and recommend appropriate dimensions, such as the dimensions of positioning and stabilizing structures, to provide an optimal fit. For example, a medium size can be suggested from several given size options (e.g., small, medium, or large). Alternatively, a custom-sized positioning and stabilizing structure can be created based on the user's 3D scan, taking into account the user's individual facial landmarks.

[0404] The aforementioned head-mounted display system provides an alternative example of this technology, which is constructed and arranged to enhance comfort, fit, usability, system architecture, use in medical environments, and manufacturability.

[0405] The head-mounted display system according to examples of this technology provides enhanced comfort while minimizing facial imprints and pain from prolonged use. For example, comfort can be achieved by providing a universal load distribution, where load is optimized on all contact surfaces by avoiding or minimizing load on areas prone to discomfort and redistributing the load to areas capable of comfortably bearing it (e.g., avoiding or minimizing load on the bridge and sides of the nose and applying or redistributing the load to the top and / or back of the head). Furthermore, comfort can be achieved by providing a localized load distribution, where the load is evenly distributed through design and material selection in facial areas where contact is unavoidable; for example, contact points around the eyes may include compliant materials that evenly distribute the load and avoid pain points / facial imprints. Additionally, comfort can be achieved by minimizing weight, as a smaller weight throughout the system results in less tension on the positioning and keeps the system in the correct configuration. In this regard, the head-mounted display system according to the example of this technology offers a minimal design (e.g., low distribution) to achieve fit, comfort and proper configuration, such as component optimization to minimize the size and number of components, thereby enabling the use of robust and lightweight materials.

[0406] The head-mounted display system according to examples of this technology provides an enhanced fit or universal fit without sacrificing comfort, usability, and cost. For example, the fit can be achieved by offering choices of geometry and materials, as well as the adjustability of the adjustment mechanism. Components of the positioning and stabilizing structure are designed, and materials can be selected to provide a desired force-to-displacement ratio, for example, the strap can stretch to a desired length under a predetermined force. The adjustment mechanism offers simplicity because the dimensions of the positioning and stabilizing structure and the associated strap can be manually adjusted and set, and component parts can be minimized while maximizing ease of use, for example, through one-handed adjustment of the strap and the alternative use of magnetic clips for connection (e.g., easy removal without losing strap settings). Moreover, the adjustment mechanism offers minimal size and weight, reducing the volume of the adjustment mechanism with optimal materials and minimal components. Furthermore, the enhanced fit can be achieved through anthropometry, where the adjustment range can be designed to fit the optimal anthropometric range for the desired market.

[0407] The head-mounted display system according to examples of this technology provides enhanced usability through a low-touch, easy-to-set-up solution and a low-dexterity threshold solution. For example, low-touch setup can be achieved through a self-adjusting solution including stretchable materials or simple mechanical actuation, where only a small amount of fine adjustment is required for a proper fit. Furthermore, the system can include adjustment and locking solutions to facilitate usability (i.e., setting and forgetting), such as mechanisms for guiding adjustment (e.g., magnets) and locking mechanisms for setting the adjustment (e.g., clips). Additionally, the system provides ease of use, enabling adjustment even when worn by users with low dexterity and / or minimal vision.

[0408] The head-mounted display system according to examples of this technology provides an enhanced system architecture that optimizes component placement, minimizing cost while maximizing comfort, fit, and usability. For example, the system can provide enhanced weight distribution, where electrical and / or mechanical components are ideally positioned from a comfort perspective. Furthermore, the system can include modularity, allowing components to be selected or upgraded based on user preferences; for example, electrical components, face contact pads, straps, and / or earplugs can be selected based on preference.

[0409] The head-mounted display system according to examples of this technology enhances its use in medical settings. For example, the system may be biocompatible and / or cleanable, with the selected materials being cleanable for reuse in medical settings and / or meeting biocompatibility requirements.

[0410] The head-mounted display system according to this technology enhances manufacturability by providing a mass-producible solution at low cost, while maintaining high quality and functionality.

[0411] As described above, this technology can be found in specific applications in head-mounted display systems in the form of virtual reality (VR) display devices and / or augmented reality (AR) display devices.

[0412] like Figure 35 As shown, an exemplary VR display device 3000 according to one aspect of the present technology includes the following functional aspects: a display unit 3100, a display housing 3200, and a positioning and stabilization structure 3500. In some forms, the functional aspects may be provided by one or more physical components. In some forms, one or more physical components may provide one or more functional aspects. In use, the display unit 3100 is arranged near and in front of the user's eyes to allow the user to view the display unit 3100.

[0413] In some examples, the display unit 3100 may include a display screen 3104, a display housing 3200, an interface structure 3300, and / or an optical lens 3400. These components may be integrally formed in a single display unit 3100, or they may be separable and selectively connected by the user to form the display unit 3100. Alternatively, the display screen 3104, display housing 3200, interface structure 3300, and / or optical lens 3400 may be included in the display device 3000, but may not be part of the display unit 3100.

[0414] In the example, the display screen or monitor 3104 may be configured to selectively output computer-generated images visible to the user in the operating position. In some forms, the display screen 3104 is an electronic display. The display screen 3104 may be a liquid crystal display (LCD) or a light-emitting diode (LED) screen.

[0415] In some forms, the display housing 3200 provides a support structure for the display screen 3104 to maintain the position of at least some components of the display screen 3104 relative to each other, and may additionally protect the display screen 3104 and / or other components of the display unit 3100. The display housing 3200 may be made of a material suitable for providing impact protection to the display screen 3104. The display housing 3200 may also come into contact with the user's face and may be made of a biocompatible material suitable for limiting irritation to the user.

[0416] In some forms, the interface structure 3300 may extend at least partially around the display housing 3200 and may form an observation opening. The observation opening may at least partially receive the user's face during use. Specifically, the user's eyes may be accommodated within the observation opening formed by the interface structure 3300.

[0417] In some forms, the display device 3000 may include a light shield, which may be made of an opaque material and may block ambient light from reaching the user's eyes. The light shield may be part of the interface structure 3300 or may be a separate component.

[0418] In some examples, at least one lens 3400 may be positioned between the user's eye and the display screen 3104. The user can view the image provided by the display screen 3104 through the lens 3400. At least one lens 3400 can help isolate the display screen 3104 from the user's face to limit eye strain. At least one lens 3400 can also help to better view the image displayed by the display screen 3104. In some forms, the at least one lens includes a first lens configured to be aligned with the user's left eye in the operating position and a second lens configured to be aligned with the user's right eye in the operating position. In some forms, the lens 3400 is a Fresnel lens. In some forms, the display includes a binocular display divided into a first segment and a second segment, the first segment aligned with the first lens and the second segment aligned with the second lens.

[0419] In one example, the display device 3000 includes a control system 7000 that helps control the output received by the user (see...). Figure 36 Specifically, the control system 7000 can control the visual output from the display screen 3104.

[0420] In some forms, the control system 7000 may include a sensor 7002 that monitors various parameters or values ​​(e.g., in the physical environment) and transmits the measured parameters to a processor 7004. The output received by the user may be affected by the measured parameters. For example, the processor 7004 is configured to generate a computer-generated image based on changes in the measured values ​​output to a display.

[0421] In some forms, sensor 7002 may include: an orientation sensor that can sense the orientation of the user's body; at least one camera that can be positioned to observe the user's physical environment (e.g., to determine orientation); and / or an eye sensor that can track the movement of the user's eyes to determine which direction at least one of the user's eyes is looking.

[0422] In some forms, the processor 7004 may include a computer or a smartphone.

[0423] In some configurations, the control system 7000 is integrated into the display unit 3100. In other configurations, the control system 7000 is housed in a control system support 7060, which is separate from the head-mounted display unit 3100 but connected to (e.g., electrically connected to) the display unit.

[0424] Some forms of display device 3000 include a controller 3600, which can be engaged by a user to provide user input and / or control the operation of the display device 3000 to a virtual environment. The controller 3600 can be connected to the display unit 3100 and provides the user with the ability to interact with virtual objects output from the display unit 3100 to the user. For example, the controller 3600 has at least one button 3602 that can be selectively engaged by the user's finger (see...). Figure 35 The controller 3600 communicates with the processor 7004 and is configured to send a signal to the processor when at least one button 3602 is engaged, the processor being configured to change a computer-generated image output by the display 3104 based on the signal.

[0425] Figure 37 An exemplary AR display device 3000 according to one aspect of the present technology is shown, including the following functional aspects: display unit 3100, display housing 3200 and positioning stabilization structure 3500.

[0426] In some examples, display unit 3100 may include a display screen or monitor 3104 supported by display housing 3200. Display screen 3104 is configured to selectively output one or more computer-generated images observable by a user. Display screen 3104 may include at least one optical lens 3400 made of a transparent or translucent material, configured to allow the user to observe their physical environment while viewing the computer-generated images. For example, display screen 3104 may be made of glass, so the user can see through display screen 3104. This can be particularly beneficial in AR applications, allowing the user to continue seeing the physical environment.

[0427] In some forms, the at least one lens 3400 includes a first lens configured to be aligned with the user's left eye in the operating position and a second lens configured to be aligned with the user's right eye in the operating position, for example, see [link to relevant documentation]. Figure 37 .

[0428] In one example, the AR display device 3000 includes a control system 7000 that helps control the output received by the user (see...). Figure 36 Specifically, the control system 7000 can control the visual output from the display screen 3104. In some forms, the control system 7000 may include a sensor 7002 that monitors various parameters or values ​​(e.g., in the physical environment) and transmits the measured parameters to the processor 7004. The output received by the user may be affected by the measured parameters. For example, the processor 7004 is configured to change the computer-generated image output from the display based on the measured values.

[0429] 5.2 Glossary

[0430] To achieve the purposes of this technical disclosure, one or more of the following definitions may be applied in certain forms of this technology. Alternative definitions may be applied in other forms of this technology.

[0431] 5.2.1 General Rules

[0432] Leakage: Leakage of words is considered as unintended exposure to light. In one example, leakage could occur due to an incomplete seal between the display unit and the user's face.

[0433] 5.2.2 Materials

[0434] Closed-cell foam: Foam containing completely encapsulated cells, i.e., closed-cell foam.

[0435] Elastic material: A polymer made of polyurethane.

[0436] Elastomers: Polymers that exhibit elastic properties. For example, siloxane elastomers.

[0437] Ethylene-vinyl acetate (EVA): A copolymer of ethylene and vinyl acetate.

[0438] Foam: Any material, such as polyurethane foam or viscoelastic foam, incorporating air bubbles during the manufacturing process to create a lightweight honeycomb structure.

[0439] Chloroprene rubber: A synthetic rubber produced by the polymerization of chloroprene. Commercially available chloroprene rubber is called Breath-O-Prene.

[0440] Nylon: A synthetic polyamide that is elastic and can be used, for example, to form fibers / filaments for textiles.

[0441] Open-cell foam: Foam containing pores, i.e., not completely encapsulated air bubbles, i.e., open-cell foam.

[0442] Polycarbonate: a typical transparent thermoplastic polymer of bisphenol A carbonate.

[0443] Polyethylene: A thermoplastic that is resistant to chemicals and moisture.

[0444] Polyurethane (PU): A plastic material prepared by copolymerizing isocyanate and polyol, for example, in the form of foam (polyurethane foam) and rubber (polyurethane rubber).

[0445] Semi-open cell foam: Foam containing a combination of closed and open (encapsulated) cells.

[0446] Silicone resin or silicone elastomer: synthetic rubber. In this specification, reference to silicone resin refers to liquid silicone rubber (LSR) or molding silicone rubber (CMSR). One commercially available form of LSR is SILASTIC (included in the range of products sold under this trademark), manufactured by Dow Corning. Another manufacturer of LSR is Wacker. Unless otherwise specified, exemplary forms of LSR have a Shore A (or Type A) indentation hardness in the range of about 35 to about 45 as measured using ASTM D2240.

[0447] Spacer fabric: A composite structure consisting of two outer fabric substrates connected together and separated by a monofilament interlayer.

[0448] Spandex: An elastic fiber or fabric primarily composed of polyurethane. Spandex is used in the commodity: Lycra.

[0449] Thermoplastic elastomers (TPEs): These are typically low-modulus, flexible materials that can be stretched at room temperature and have the ability to return to approximately their original length upon stress release. Traded products using TPEs include: Dynaflex TM , MD-1 15.

[0450] Thermoplastic polyurethane (TPU): A thermoplastic elastomer with high durability and flexibility.

[0451] 5.2.3 Mechanical Properties

[0452] Resilience: The ability of a material to absorb energy during elastic deformation and release energy during unloading.

[0453] Elasticity: Releases virtually all of the energy upon unloading. Examples include certain siloxanes and thermoplastic elastomers.

[0454] Hardness: The ability of a material to resist deformation (e.g., described by Young's modulus or an indentation hardness scale measured on a standardized sample size).

[0455] "Soft" materials can include silicone resins or thermoplastic elastomers (TPEs) and can be easily deformed, for example, under finger pressure.

[0456] "Hard" materials can include polycarbonate, polypropylene, steel, or aluminum, and are not easily deformed, for example, under finger pressure.

[0457] Stiffness (or rigidity) of a structure or component: The ability of a structure or component to resist deformation in response to an applied load. The load can be a force or moment, such as compression, tension, bending, or torsion. A structure or component can provide different resistance in different directions.

[0458] Flexible structures or components: structures or components that will change shape (e.g., bend) when subjected to a relatively short period of time, such as 1 second, to support their own weight.

[0459] Rigid structures or components: Structures or components that do not change shape substantially when subjected to loads typically encountered in use.

[0460] As an example, an I-beam may include a different bending stiffness (resistance to bending loads) in the first direction compared to the second orthogonal direction. In another example, the structure or component may be flexible in the first direction and rigid in the second direction.

[0461] 5.2.4 User Interface

[0462] Frame: The frame is considered to be a display housing unit that bears tensile loads between two or more connection points with the hoop.

[0463] Pupil distance: The distance between the centers of the pupils of the eye.

[0464] Hoop: A hoop is considered to refer to a component designed for positioning and stabilization on the head. For example, a hoop may include an assembly of one or more struts, straps, and reinforcements configured to position and hold the user interface in the proper place on the user's face, so that the display unit is held in an operating position in front of the user's face. The hoop may be formed from soft, flexible, and resilient materials, such as foam and laminated composites of fabrics / cloths.

[0465] Membrane: A membrane is to be understood as a typically thin element that is preferably not flexurally resistant but is tensilely resistant.

[0466] Sealing: can be the noun form of a structure (sealant) or the verb form of the effect (seal). Two elements can be constructed and / or arranged to 'seal' or to achieve 'sealing' between them, without the need for a separate 'sealing' element itself.

[0467] Shell: A shell is generally considered to refer to a curved and relatively thin structure with bendable, stretchable, and compressible stiffness. For example, the curved structural walls of a face mask can be a shell. In some forms, the shell can be multifaceted.

[0468] Reinforcing member: A reinforcing member is considered to be a structural component designed to increase the bending resistance of another component in at least one direction.

[0469] Support: The support will be considered as a structural component designed to increase the compressibility of another component in at least one direction.

[0470] Rotating shaft: (noun) a sub-component of a group configured to rotate about a common axis, preferably independently, preferably under low torque. In one form, the rotating shaft may be configured to rotate over an angle of at least 360 degrees. In another form, the rotating shaft may be configured to rotate over an angle of less than 360 degrees.

[0471] Lacing (noun: a structure used to resist tension).

[0472] 5.2.5 Shape of the structure

[0473] Products according to this technology may include one or more three-dimensional mechanical structures, such as a sealing formation of a display unit. The three-dimensional structures can be combined using two-dimensional surfaces. These surfaces can be distinguished using markings to describe the associated surface orientation, location, function, or some other characteristic. For example, the structure may include one or more of a front surface, a rear surface, an inner surface, and an outer surface. In another example, the sealing formation structure may include a contact surface (e.g., external) and a separate non-contact surface (e.g., underside or internal). In another example, the structure may include a first surface and a second surface.

[0474] To aid in describing the shape of three-dimensional structures and surfaces, we first consider a cross-section through a point P on the surface of the structure, see [reference needed]. Figure 2a Figures 2e show examples of cross-sections at point P on the surface and the resulting planar curves. The outward normal vector at point P points away from the surface. In some examples, we describe the surface from the viewpoint of an imaginary little person standing on it.

[0475] 5.2.5.1 One-dimensional curvature

[0476] The curvature of a plane curve at P can be described with a sign (e.g., positive, negative) and a quantity (e.g., the reciprocal of the radius of the circle that only touches the curve at P).

[0477] Positive curvature: If the curve at point P turns outwards towards the normal, then the curvature at that point will be positive (if the figures were imagined leaving P, they would have to walk uphill). See also Figure 2a (and Figure 2b Compared to relatively large positive curvature) and Figure 2b (and Figure 2a (Compared to a relatively small positive curvature). Such curves are often referred to as concave.

[0478] Zero curvature: If the curve at point P is a straight line, then the curvature will be zero (if you imagine a little person leaving P, they could walk horizontally without going up or down). See also Figure 2c .

[0479] Negative curvature: If the curve at point P turns away from the outward normal, then the curvature in that direction at that point will be negative (if the imagined figures leave point p, they must go downhill). See Figure 2d (relatively small negative curvature compared to Figure 2e) and Figure 2e (relatively large negative curvature compared to Figure 2d). Such curves are often called convex curves.

[0480] 5.2.5.2 Curvature of Two-Dimensional Surfaces

[0481] A description of the shape at a given point on a two-dimensional surface according to the present invention may include multiple normal cross sections. These cross sections may cut through the surface in a plane including an outward normal (“normal plane”), and each cross section may be cut in a different direction. Each cross section produces a planar curve with a corresponding curvature. The different curvatures at that point may have the same sign or different signs. Each curvature at that point has a quantity, for example, a relatively small quantity. Figure 2a The planar curve in 2e can be an example of such multiple cross-sections at a specific point.

[0482] Principal curvature and principal direction: The direction of the normal plane to which the curvature of the curve reaches its maximum and minimum values ​​is called the principal direction. Figure 2a In the example of Figure 2e, the maximum curvature occurs Figure 2a In Figure 2e, the minimum curvature occurs, therefore Figure 2a Figure 2e shows the cross-section along the principal direction. The principal curvature at P is the curvature along the principal direction.

[0483] A region of a surface: a connected set of points on the surface. This set of points in a region can have similar characteristics, such as curvature or sign.

[0484] Saddle-shaped region: A region in which the principal curvature has opposite signs at each point, i.e., one sign is positive and the other is negative (which, depending on the direction the imagined individual is turning, could be moving up or down). Saddle-shaped regions are illustrated, for example, in Figure 2h.

[0485] Dome region: A region in which the principal curvature has the same sign at each point, such as two positive ("concave dome") or two negative ("convex dome"). For example, a dome region is shown in Figure 2g.

[0486] Surface edge: The boundary or limit of a surface or region. For example, an edge on a surface is shown in Figure 2g.

[0487] Path: In some forms of this technique, 'path' will be considered to mean a path in a mathematical-topological sense, such as a continuous spatial curve from f(0) to f(1) on a surface. In some forms of this technique, 'path' can be described as a route or distance, including, for example, a set of points on the surface. (The path of an imaginary person is the place where they walk on the surface, and is similar to a garden path). For example, a path on a surface is shown in Figure 2g.

[0488] 5.2.5.3 Space Curve

[0489] Space curves: Unlike planar curves, space curves do not necessarily lie in any particular plane. A space curve can be thought of as a one-dimensional segment of three-dimensional space. Imagine a person walking along a space curve on one strand of a DNA helix. The typical human left ear contains the helix, which is a left-handed helix; see [link to relevant documentation]. Figure 2i The typical human right ear includes a spiral, which is a right-handed spiral; see [link / reference]. Figure 2k . Figure 2j A right-handed helix is ​​shown. The edges of a structure, such as the edge of a membrane, can follow a space curve. Typically, a space curve can be described by the curvature and torsion at each point on the curve. Torque is a measure of how the curve turns out of the plane. Torque has a sign and magnitude. The torsion at a point on a space curve can be characterized by reference to the tangent vector, normal vector, and double normal vector at that point.

[0490] A double-normal unit vector is a vector that is perpendicular to both the tangent vector and the principal normal vector. Its direction can be determined by the right-hand rule (see, for example, [link to relevant documentation]). Figure 2m ) or optionally by left-hand rule ( Figure 2l To determine.

[0491] Oscillating plane: The plane containing the unit tangent vector and the unit principal normal vector. See also Figure 2l and 2m .

[0492] Torque of a space curve: The torsion of a space curve at a point is the magnitude of the rate of change of the unit vector of the binormal at that point. It measures the degree to which the curve deviates from the osculating plane. A space curve lying in the osculating plane has zero torsion. A space curve deviating relatively small from the osculating plane will have a relatively small amount of torsion (e.g., a gently sloping spiral path). A space curve deviating relatively large from the osculating plane will have a relatively large amount of torsion (e.g., a sharply sloping spiral path). See also Figure 2j Since T2 > T1, therefore Figure 2j The amount of twist near the top coil of the spiral is greater than Figure 2j The amount of twist of the bottom coil of the spiral.

[0493] Reference Figure 2mAccording to the right-hand rule, a space curve oriented towards the right-hand binormal direction can be considered to have a right-hand positive twist (e.g., Figure 2j (The right-handed spiral is shown). A space curve that turns away from the direction of the right-hand double normal can be considered to have a right-handed negative twist (e.g., a left-handed spiral).

[0494] Similarly, refer to the left-hand rule (see...) Figure 2l A space curve oriented towards the left-hand double normal direction can be considered to have a left-hand positive twist (e.g., a left-hand spiral). Therefore, a left-hand positive is equivalent to a right-hand negative.

[0495] 5.2.5.4 Hole

[0496] Surfaces can have one-dimensional pores, such as pores defined by planar curves or spatial curves. Thin structures with pores (e.g., films) can be described as having one-dimensional pores. See, for example, [example missing]. Figure 2n The structure shown has a one-dimensional hole in the surface bounded by a planar curve.

[0497] The structure can have two-dimensional holes, such as holes defined by a surface. For example, a pneumatic tire has two-dimensional holes defined by the inner surface of the tire. See also Figure 2o and 2p The structure shown has a two-dimensional hole whose boundary is defined by the surface shown.

[0498] 5.3 Other Remarks

[0499] Unless explicitly stated in the context and a numerical range is provided, it should be understood that every intermediate value between the upper and lower limits of the range, up to one-tenth of the lower limit unit, and any other value or intermediate value within the range are broadly included within this technique. The upper and lower limits of these intermediate ranges may be included independently within the intermediate range and within the scope of this technique, but are subject to any explicitly excluded boundaries within the range. Where the range includes one or both of the extreme values, this technique also includes ranges that exclude any one or both of those included extreme values.

[0500] Furthermore, where one or more values ​​described herein are implemented as part of this technique, it should be understood that such values ​​may be approximate unless otherwise stated, and such values ​​may be used to the extent permitted or required by the practical implementation of the technique for any appropriate valid digits.

[0501] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. While any methods and materials similar to or equivalent to those described herein may also be used in the practice or testing of this technology, a limited number of exemplary methods and materials are described herein.

[0502] When a particular material is determined to be used for constructing a component, obvious alternative materials with similar properties may be used as substitutes. Furthermore, unless otherwise stated, any and all components described herein are to be understood as being capable of being manufactured and therefore can be manufactured together or separately.

[0503] It must be noted that, unless the context clearly specifies otherwise, as used herein and in the appended claims, the singular forms “a,” “an,” and “the” include their plural equivalents.

[0504] All publications mentioned herein are incorporated herein by reference in their entirety to disclose and describe the methods and / or materials that are the subject of those publications. The publications discussed herein are provided solely for their disclosure prior to the filing date of this application. This document should not be construed as an admission that the present technology is not entitled to any prior disclosure due to a prior invention. Furthermore, the publication dates provided may differ from the actual publication dates, which may require independent verification.

[0505] The terms “comprises” and “comprising” should be understood as referring to each element, component, or step in a non-exclusive manner, indicating the marked element, component, or step that may be present or utilized, or a combination with other unmarked elements, components, or steps.

[0506] The headings used in the detailed description are for convenience of the reader only and should not be used to limit the subjects that can be found throughout the invention or the claims. These headings should not be used to interpret or limit the scope of the claims.

[0507] Although the techniques described herein have been referenced to specific examples / forms / embodiments, it should be understood that these examples / forms / embodiments are merely illustrative of the principles and applications of the techniques. In some cases, terms and symbols may imply specific details not required for practical application. For example, although the terms "first" and "second" may be used, they are not intended to indicate any order unless otherwise stated, but rather to distinguish different elements. Furthermore, although process steps in a method may be described or illustrated in sequence, such order is not required. Those skilled in the art will recognize that such order can be modified and / or aspects may be performed simultaneously or even concurrently.

[0508] Therefore, it should be understood that many modifications can be made to the illustrative examples / forms / implementations, and other arrangements can be designed, without departing from the spirit and scope of this technology.

[0509] 5.4 List of Reference Symbols

[0510]

[0511]

[0512]

[0513]

[0514]

[0515]

[0516]

Claims

1. An interface structure for a head-mounted display system, the interface structure comprising: A facial engagement surface configured to contact the user's face around the user's eyes, wherein the facial engagement surface comprises silicone; A foam pad, wherein the face-joining surface covers the foam pad such that the foam pad is located below the face-joining surface, wherein the face-joining surface is loosely supported on the foam pad, and wherein the foam pad is configured and arranged to provide spring-like pad support hidden below the face-joining surface; A support structure and a flange configured to extend inwardly from the support structure, wherein the flange is configured and arranged to support the foam liner and the face joint surface, wherein the flange is configured and arranged to support the face joint surface to prevent bending during use; and A chassis configured to removably mount the interface structure to the display unit housing of the head-mounted display system, wherein the interface structure includes varying compliance to allow forces to be more selectively distributed on the user's face.

2. The interface structure of claim 1, further comprising: A nose bridge, the nose bridge including flaps configured to accommodate a user's nose.

3. The interface structure according to claim 2, wherein, The flap is configured to be located on the side of the user's nose bridge.

4. The interface structure according to claim 3, wherein, The flaps are configured and arranged to allow the user's nose to enter without exerting significant resistance.

5. The interface structure according to claim 2, wherein, The nose bridge is continuous with the facial engagement surface.

6. The interface structure according to any one of claims 1 to 2, wherein, The chassis includes one or more engagement elements surrounding it, the one or more engagement elements being configured to detachably engage with corresponding elements on the display unit housing.

7. The interface structure according to any one of claims 1 to 2, wherein, The chassis is configured to provide rigidity and structure to the interface structure.

8. The interface structure according to any one of claims 1 to 2, wherein, One or more regions of the facial engagement surface include varying thickness to provide variable compliance when pressed against the user's face during use.

9. The interface structure according to any one of claims 1 to 2, wherein, The support structure includes different thicknesses to optimize load resistance.

10. The interface structure according to any one of claims 1 to 2, wherein, The interface structure at least partially forms an observation opening, which is configured to at least partially receive the user's face.

11. The interface structure according to any one of claims 1 to 2, wherein, The support structure and the flange are made of silicone.

12. The interface structure according to any one of claims 1 to 2, wherein, The flange is configured and arranged to provide spring-like support to the foam liner and the face mating surface.

13. A head-mounted display system, comprising: Display unit; and A positioning and stabilizing structure is configured to hold the display unit in an operating position on the user's face during use. The display unit includes: a display unit housing, the display unit housing including a display configured to be visible to a user when the display unit is in an operating position; and an interface structure according to any one of claims 1 to 12, the interface structure extending around the display and forming an opening for viewing the display.

14. A virtual reality display device, comprising: The display unit includes: A display configured to selectively output computer-generated images visible to a user at an operating position. The display unit housing that supports the display. The interface structure according to any one of claims 1 to 12, wherein the interface structure at least partially forms an observation opening configured to receive a user's face in an operating position, and the interface structure is at least partially made of an opaque material configured to at least partially block ambient light from reaching the observation opening in the operating position, and At least one lens, coupled to the display unit housing and disposed within the viewing opening and aligned with the display, such that in the operating position, the user can view the display through the at least one lens; and A control system having at least one sensor that communicates with a processor, wherein, The at least one sensor is configured to measure parameters and transmit the measured values ​​to the processor, and the processor is configured to modify a computer-generated image output by the display based on the measured values.

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