Patent Description:
With development of near-eye display technologies, head-mounted display devices are widely applied in scenarios such as work, life, and entertainment. The head-mounted display device generally includes a display apparatus and a mask. When a user wears the head-mounted display device, the mask fits the face to form closed space, to enhance a sense of immersion for the user. In related technologies, generally, a plurality of foam layers are used to increase a thickness of a face fitting part fitting the face, so that the mask can match faces with different face shapes. However, the relatively thick face fitting part causes relatively poor air permeability of the mask, which affects wearing comfortableness of the mask.

<CIT> discloses a head-mounted display device. The head-mounted display device includes a head-mounted display main body and a face fitting part.

<CIT> discloses a head-mounted display device including a body, a strap, two first elastic parts, two second elastic parts, two first soft pads and two second soft pads.

<CIT> discloses a head-mounted device which comprises a component configured to adjust the slight distance and the interpupillary distance.

This application provides a mask and a head-mounted display device, as defined in the appended set of claims, to reduce a thickness of a face fitting part of a mask and improve air permeability of the mask, thereby improving wearing comfortableness of the mask.

In the mask provided in this application, both the face fitting spring plate and the elastic support can be deformed when being in a stressed state. Therefore, when different users wear the mask, the face fitting spring plate can be deformed adaptively according to different face shapes, so that the face fitting spring plate can fit faces of different users. In related technologies, a plurality of foam layers need to be used to be adapted to different face shapes. In comparison with the related technologies, the face fitting spring plate fits different face shapes through deformation, thereby greatly reducing a foam use amount of a face fitting part of the mask. In this way, a thickness of the face fitting part of the mask is reduced, and air permeability of the mask is improved, thereby further improving wearing comfortableness of the mask. In addition, because the foam use amount is greatly reduced, a volume of the mask may also be significantly reduced, thereby improving convenience in carrying the mask.

In the present application, the face fitting spring plate is a ring-shaped spring plate, and a hole enclosed by the ring-shaped spring plate is the eyepiece hole. By using this design, the face fitting spring plate has a large deformation range, so that the face fitting spring plate can match a larger range of face shapes, thereby improving applicability of the mask.

In the present application, a middle depression on the lower side edge of the ring-shaped spring plate forms the nose support, and a part that is of the ring-shaped spring plate and that forms the nose support is twisted by a specified angle relative to the remaining part of the ring-shaped spring plate. By using this design, when the user wears the mask, the nose support fits the nose of the user, to support the mask by using the nose of the user, thereby preventing the mask from slipping from the face of the user.

In the present application, a left-eye lens hole and a right-eye lens hole are disposed in a frame board, and the left-eye lens hole and the right-eye lens hole form the lens holes. By using this design, no obstacle exists in regions corresponding to the left eye and the right eye of the user, thereby improving image integrity in the eyes of the user.

In the present application, at least one lightening hole is disposed in a region located between the left-eye lens hole and the right-eye lens hole of the support. By using this design, a weight of the support can be reduced, and face fatigue can be avoided when the user wears the mask for a long time.

In the present application, the elastic support is a long-strip-shaped elastic strip. The long-strip-shaped elastic strip is used to connect the support and the face fitting spring plate, so that the face fitting spring plate has a larger deformation range, thereby improving applicability of the mask.

In the present application, left and right sides of the face fitting spring plate are respectively connected to left and right sides of the support by using the long-strip-shaped elastic strips. By using this design, the face fitting spring plate can be symmetrically supported on the left and right sides, thereby improving a fitting effect between the face fitting spring plate and the face of the user.

A mask provided in the embodiments of this application is applicable to a head-mounted display device such as a virtual reality head-mounted display device (Virtual Reality, VR head-mounted display for short), an augmented reality head-mounted display device (Augmented Reality, AR head-mounted display for short), or a mixed reality head-mounted display device (Mixed Reality, MR head-mounted display for short). The following uses a mask in the virtual reality head-mounted display device as an example for description.

As shown in <FIG>, generally, a virtual reality head-mounted display device includes a mask <NUM> and a display apparatus <NUM> installed in front of the mask <NUM>. The display apparatus <NUM> may be an apparatus for displaying information such as a text, an image, or an animation, for example, a mobile phone, a game console, or a tablet computer. The display apparatus <NUM> is disposed in front of the mask <NUM>, and the mask fits the face of a user at rear of the mask, to prevent external light from entering between the eyes of the user and the display apparatus <NUM>, thereby enhancing a sense of immersion of the user.

In the mask provided in this embodiment of this application, a face fitting spring plate is used in a part of the mask fitting the face of the user. The face fitting spring plate can be deformed to some extent when being under an external force. In this way, when different users wear the mask, the face fitting spring plate can be deformed adaptively according to different face shapes of users, so that the face fitting spring plate can fit faces of different users. In related technologies, a plurality of foam layers need to be used to be adapted to different face shapes. In comparison with the related technologies, the face fitting spring plate can be used to ensure fitting the faces of different users, thereby greatly reducing a foam use amount. In this way, air permeability of the mask is improved, thereby further improving wearing comfortableness of the mask. The following describes the implementations of the embodiments of this application in detail with reference to the accompanying drawings.

As shown in <FIG>, a mask provided in Embodiment <NUM> of this application includes a support <NUM>, an elastic support <NUM>, and a face fitting spring plate <NUM>. The support <NUM> includes a frame board <NUM> and two lens holes <NUM> disposed in the frame board <NUM>. The frame board <NUM> is a rectangular board. Four corners of the rectangular board are rounded corners, to improve beauty of the frame board <NUM>. In addition, by using a design of the rounded corners of the frame board <NUM>, the user can be protected from a scratch, thereby improving use safety of the mask.

The two lens holes <NUM> are disposed inside the frame board, and the two lens holes <NUM> are symmetrically disposed in the frame board <NUM>. When the user wears the mask, the two lens holes <NUM> are respectively opposite to the eyes of the user. The lens hole <NUM> opposite to the left eye of the user may be referred to as a left-eye lens hole, and the lens hole <NUM> opposite to the right eye of the user may be referred to as a right-eye lens hole. The lens holes <NUM> are used to accommodate lenses. The lens may be a convex lens, or a combination of convex lenses and concave lenses. The lens hole <NUM> includes but is not limited to a circular hole, an elliptical hole, a triangular hole, a square hole, or a polygonal hole. In this embodiment, the lens hole is a circular hole, and the lens correspondingly mounted in the lens hole <NUM> is a circular lens.

The elastic support <NUM> is a long-strip-shaped elastic strip, and is used to connect the support <NUM> and the face fitting spring plate <NUM> together. In addition, when the user wears the mask, the elastic support <NUM> is also deformed to some extent, so that the face fitting spring plate <NUM> better fits the face of the user. A quantity of elastic supports <NUM> may be one, two, or more. When different quantities of elastic supports <NUM> are used to connect the support <NUM> and the face fitting spring plate <NUM>, there are also a plurality of options of connection locations for the elastic supports <NUM> separately connecting the support <NUM> to the face fitting spring plate <NUM>.

For example, when one elastic support <NUM> is used, two ends of the elastic support <NUM> are generally connected to a middle part of the frame board <NUM> and a middle part of the face fitting spring plate <NUM>. To be specific, one end of the elastic support <NUM> is connected to the middle part of the frame board <NUM>, and the other end of the elastic support <NUM> is connected to the middle part of the face fitting spring plate <NUM>. For another example, when two elastic supports <NUM> are used, the two elastic supports <NUM> may be connected to both left and right sides of the frame board. One end of one elastic support <NUM> is connected to the left side of the frame board <NUM>, and the other end of the elastic support <NUM> is connected to a left side of the face fitting spring plate <NUM>. One end of the other elastic support <NUM> is connected to the right side of the frame board <NUM>, and the other end of the other elastic support <NUM> is connected to a right side of the face fitting spring plate <NUM>. Alternatively, both the two elastic supports <NUM> are disposed in the middle part of the frame board <NUM>. One end of one elastic support <NUM> is connected to an upper side edge of the frame board <NUM>, and one end of the other elastic support <NUM> is connected to a lower side edge of the frame board <NUM>. Correspondingly, the other end of the elastic support <NUM> in the two elastic supports <NUM> is connected to an upper side edge of the face fitting spring plate <NUM>, and the other end of the other elastic support <NUM> is connected to a lower side edge of the face fitting spring plate <NUM>.

For still another example, when three elastic supports <NUM> are used, in a direction from left to right of the frame board <NUM>, the three elastic supports <NUM> are respectively connected to a left side, a middle part, and a right side of the frame board <NUM>. In other words, in the direction from left to right of the frame board <NUM>, the left side, the middle part, and the right side of the frame board <NUM> each are connected to one end of one elastic support <NUM>, and the other ends of the three elastic supports <NUM> each are connected to a left side, a middle part, and a right side of the face fitting spring plate <NUM>. It may be understood that, on the two sides of the frame board <NUM>, two or more elastic supports <NUM> may be used to connect the face fitting spring plate <NUM> on one side such as the left side, and elastic supports <NUM> with a quantity that is the same as or different from the left side may be used to connect the face fitting spring plate <NUM> on the other side such as the right side. In addition, when two or more elastic supports <NUM> are disposed on each of the left side and/or the right side of the frame board <NUM>, the elastic supports <NUM> on the same side may be disposed in parallel, or may be disposed in a crossing manner.

The middle part of the face fitting spring plate <NUM> is sunken to the support <NUM>. In the direction from left to right of the frame board <NUM>, the face fitting spring plate <NUM> is approximately in an arc shape. A contour shape of the face fitting spring plate <NUM> is similar to a contour of the face of the user. More specifically, the contour shape of the face fitting spring plate <NUM> is similar to the contour of the face above the nose of the user. When the user wears the mask, the face fitting spring plate <NUM> can fit the face of the user. The face fitting spring plate <NUM> is made of an elastic material, so that the face fitting spring plate can be deformed under an external force. In this way, the face fitting spring plate <NUM> can fit different face shapes, thereby improving applicability of the mask. As shown in <FIG>, <FIG>, the face fitting spring plate <NUM> in <FIG> is not under an external force. In this case, the face fitting spring plate <NUM> is in an arc shape. The face fitting spring plate <NUM> in <FIG> is under an external force. In this case, the face fitting spring plate <NUM> in <FIG> is deformed to some extent relative to the face fitting spring plate <NUM> in <FIG>. <FIG> is a comparison diagram of the face fitting spring plate <NUM> before being under an external force and the face fitting spring plate <NUM> after being under an external force. Black solid lines show shapes of the elastic support <NUM> and the face fitting spring plate <NUM> after being under an external force, and lines in a lighter color show shapes of the elastic support <NUM> and the face fitting spring plate <NUM> before being under the external force.

In this embodiment, the face fitting spring plate <NUM> includes a ring-shaped spring plate <NUM>. The ring-shaped spring plate <NUM> is a sheet-like elastic plate with an opening inside. The opening inside the ring-shaped spring plate <NUM> is an eyepiece hole <NUM>. The eyepiece hole <NUM> may be a long-strip-shaped rectangular hole. Content displayed by using the display apparatus enters the eyes of the user through the lens holes <NUM> and the eyepiece hole <NUM>. The ring-shaped spring plate <NUM> includes a left side edge and a right side edge that are disposed opposite to each other, and an upper side edge and a lower side edge that are disposed opposite to each other. The upper side edge and the lower side edge are located between the left side edge and the right side edge, and are separately connected to the left side edge and the right side edge. The left side edge, the right side edge, the upper side edge, and the lower side edge may be an integrated structure. The eyepiece hole <NUM> is enclosed by using the left side edge, the right side edge, the upper side edge, and the lower side edge.

A surface that is of the ring-shaped spring plate <NUM> and that is away from the support <NUM> is a face fitting surface. The face fitting surface is a surface fitting the face of the user. A width w of each side edge of the ring-shaped spring plate <NUM> is greater than a thickness h of the ring-shaped spring plate. In this way, when the face fitting surface of the ring-shaped spring plate <NUM> fits the face of the user, a contact area between the ring-shaped spring plate <NUM> and the face of the user is relatively large. Therefore, when the user wears the mask for a long time, the ring-shaped spring plate <NUM> is forced into the face of the user, causing a significant indentation or a ligature mark on the face of the user.

The left side edge and the right side edge of the ring-shaped spring plate <NUM> are respectively connected to the left and right sides of the frame board <NUM> by using the elastic support <NUM>. Both the upper side edge and the lower side edge of the ring-shaped spring plate <NUM> are in an arc shape. A middle part of the lower side edge of the ring-shaped spring plate <NUM> is sunken to the support <NUM> to form a nose support <NUM>. A part that is of the spring plate and that forms the nose support <NUM> is twisted by a specified angle relative to the spring plate in the remaining region of the lower side edge, or the spring plate in the nose support is inclined by a specific angle relative to the remaining region of the lower side edge. The angle is greater than <NUM> degrees and less than <NUM> degrees. When the user wears the mask, the part that is of the ring-shaped spring plate <NUM> and that is located in the nose support <NUM> fits the nose of the user, and the ring-shaped spring plate <NUM> in the remaining region other than the nose support <NUM> fits the face of the user. By using this design, a fitting effect between the face fitting spring plate <NUM> and the face of the user can be improved, and the nose support <NUM> fits the nose of the user to support the mask, thereby preventing the mask from slipping from the face of the user and improving comfortableness of the mask.

In the mask provided in Embodiment <NUM> of this application, both the face fitting spring plate <NUM> and the elastic support <NUM> can be deformed under an external force. Therefore, when different users wear the mask, the face fitting spring plate <NUM> and the elastic support <NUM> are deformed in different degrees. In other words, the face fitting spring plate <NUM> and the elastic support <NUM> are deformed adaptively according to face shapes of different users, so that the face fitting spring plate <NUM> fits the faces of users. In related technologies, a plurality of foam layers are used to be adapted to different face shapes. In comparison with the related technologies, the mask is applicable to different face shapes without using the plurality of foam layers. In this way, a thickness of a face fitting part of the mask is significantly reduced, and air permeability of the mask is improved, thereby further improving wearing comfortableness of the mask. In addition, because a foam use amount is greatly reduced, a volume of the mask is also significantly reduced, thereby improving convenience in carrying the mask.

In the foregoing mask, materials of the support <NUM>, the elastic support <NUM>, and the face fitting spring plate <NUM> may be plastic, metal, or alloy. In addition, the support <NUM>, the elastic support <NUM>, and the face fitting spring plate <NUM> may be an integrated molding structure. For example, the support <NUM>, the elastic support <NUM>, and the face fitting spring plate <NUM> are an integrated injection molding structure. However, this is not limited thereto. The support <NUM>, the elastic support <NUM>, and the face fitting spring plate <NUM> may alternatively be independent parts to form the foregoing structure of the mask in a connection manner such as screwing, welding, or bonding. For example, the support <NUM>, the elastic support <NUM>, and the face fitting spring plate <NUM> are respectively titanium alloy parts, and are connected together in a welding manner.

To facilitate wearing performed by the user, in a possible implementation, the foregoing mask generally further includes a headband. Both ends of the headband may be connected to the left and right sides of the frame board <NUM>, or may be connected to the left and right sides of the face fitting spring plate <NUM>. When the user wears the mask, the mask may be fastened to the face of the user through adjusting the headband. In addition, the headband generates a pulling force, and exerts the pulling force to the face fitting spring plate <NUM> and the elastic support <NUM>, so that the face fitting spring plate <NUM> is deformed. In this way, a shape of the face fitting spring plate <NUM> matches the face of the user, so that the face fitting spring plate <NUM> fits the face of the user.

The mask provided in Embodiment <NUM> of this application generally further includes a light shielding cloth. The light shielding cloth generally covers a side surface of the support <NUM> and a side surface of the face fitting spring plate <NUM>. The light shielding cloth is used to cover space between the support <NUM> and the face fitting spring plate <NUM>, to prevent external light from entering the mask after the user wears the mask. It may be understood that the elastic support strip <NUM> is covered by the light shielding cloth. A light shielding effect may be improved. In addition, the elastic support strip <NUM> may be hidden under the light shielding cloth. In this way, a design of an outer surface of the mask is simple and elegant, thereby improving beauty of the mask.

In a possible implementation, the mask generally further includes a foam. The foam is a single foam layer. The foam is generally disposed on the face fitting surface that is of the face fitting spring plate <NUM> and that fits the face of the user, to improve wearing comfortableness of the mask. A shape and a size of the foam are the same as or similar to those of the face fitting spring plate <NUM>. A through hole corresponding to the eyepiece hole <NUM> is disposed in a middle part of the foam. In this way, the foam does not block light from entering the eyes of the user, thereby ensuring a viewing angle range of the mask. In addition, the foam is usually wrapped in the light shielding cloth. The light shielding cloth can be used to protect the foam from damage and prolong service life of the foam.

As shown in <FIG>, a mask provided in Embodiment <NUM> of this application includes a support <NUM>, an elastic support <NUM>, and a face fitting spring plate <NUM>. The support <NUM> includes a lens frame <NUM> and two lens holes <NUM> disposed in the lens frame <NUM>. The lens frame <NUM> is similar to a glasses frame. The lens frame <NUM> includes two lens rims and a bridge part connecting the two lens rims. Each lens rim is disposed with one lens hole <NUM>. The two lens holes <NUM> are symmetrically disposed in the lens frame <NUM>. The lens hole <NUM> is used to accommodate a lens. The lens hole <NUM> includes but is not limited to a circular hole, an elliptical hole, a triangular hole, a square hole, or a polygonal hole. In this embodiment, the lens hole is a circular hole, and the lens correspondingly mounted in the lens hole <NUM> is a circular lens.

The bridge part and the two lens rims may be an integrated molding structure. As shown in <FIG>, at least one lightening hole <NUM> and at least one mounting hole <NUM> are disposed in the bridge part. In other words, the lightening hole <NUM> and the mounting hole <NUM> are disposed in a region of the lens frame <NUM> between the two lens holes <NUM>. In this design, a weight of the support <NUM> may be reduced to further reduce a weight of the mask, and face fatigue can be avoided when a user wears the mask for a long time. In addition, an indicator or another function key may be disposed in the lightening hole <NUM> and the mounting hole <NUM>. In related technologies, the function key is disposed outside the mask. In comparison with the related technologies, the function key is disposed inside the mask, so that a shape of the mask is simple and elegant, thereby improving beauty of the mask.

An arc-shaped notch <NUM> is disposed between the two lens holes <NUM>. Two side surfaces of the arc-shaped notch <NUM> each are a part of an outer surface of each of the two lens rims. A bottom surface of the arc-shaped notch <NUM> is a part of an outer surface of the bridge part. The arc-shaped notch <NUM> corresponds to a nose support part of the face fitting spring plate <NUM>. In this design, a circumferential contour of a region of the support <NUM> of the mask is the same as or similar to that of a region of the face fitting spring plate <NUM>, thereby improving overall beauty of the mask.

The elastic support <NUM> may be a U-shaped elastic strip or a V-shaped elastic strip, and is used to connect the support <NUM> and the face fitting spring plate <NUM> together. In addition, when the user wears the mask, the elastic support <NUM> is also deformed to some extent, so that the face fitting spring plate better fits the face of the user. In this embodiment, the elastic support <NUM> uses a U-shaped elastic strip, and there are two U-shaped elastic strips. The two U-shaped elastic strips are separately connected to left and right sides of the support <NUM> and left and right sides of the face fitting spring plate <NUM>. More specifically, as shown in <FIG> and <FIG>, two ends of the U-shaped elastic strip are respectively connected to middle parts of upper and lower side edges of the lens hole <NUM>, and a bottom of the U-shaped elastic strip is connected to the face fitting spring plate <NUM>.

In comparison with Embodiment <NUM> in which the elastic support <NUM> is a long-strip-shaped elastic strip, in Embodiment <NUM>, the elastic support <NUM> is a U-shaped elastic strip or a V-shaped elastic strip having relatively large strength, thereby improving connection strength between the face fitting spring plate <NUM> and the support <NUM>. In addition, when the user wears the mask in Embodiment <NUM>, two side edges of the U-shaped elastic strip or the V-shaped elastic strip are used to support the face fitting spring plate <NUM>, so that the face fitting spring plate <NUM> has better stability.

A middle part of the face fitting spring plate <NUM> is sunken to the support <NUM>. In a direction from left to right of the lens frame <NUM>, the face fitting spring plate <NUM> is approximately in an arc shape. A contour shape of the face fitting spring plate <NUM> is similar to a contour of the face of the user. More specifically, the contour shape of the face fitting spring plate <NUM> is similar to the contour of the face above the nose of the user. When the user wears the mask, the face fitting spring plate <NUM> can fit the face of the user. The face fitting spring plate <NUM> is made of an elastic material, so that the face fitting spring plate <NUM> can be deformed under an external force. In this way, the face fitting spring plate <NUM> can fit different face shapes, thereby improving applicability of the mask.

In this embodiment, the face fitting spring plate <NUM> includes a ring-shaped spring plate <NUM>. The ring-shaped spring plate <NUM> is a sheet-like elastic plate with an opening inside. The opening inside the ring-shaped spring plate <NUM> is an eyepiece hole <NUM>. Content displayed by using a display apparatus enters the eyes of the user through the lens holes <NUM> and the eyepiece hole <NUM>. A shape of the ring-shaped spring plate <NUM> is similar to a shape of a racetrack. The ring-shaped spring plate <NUM> includes a left side edge and a right side edge that are disposed opposite to each other, and an upper side edge and a lower side edge that are disposed opposite to each other. The upper side edge and the lower side edge are two long side edges of the ring-shaped spring plate <NUM>, and the left side edge and the right side edge are two short side edges of the ring-shaped spring plate <NUM>. The upper side edge and the lower side edge are located between the left side edge and the right side edge, and are separately connected to the left side edge and the right side edge. The left side edge, the right side edge, the upper side edge, and the lower side edge are an integrated structure. The eyepiece hole <NUM> is enclosed by using the left side edge, the right side edge, the upper side edge, and the lower side edge. The eyepiece hole <NUM> includes a left eyepiece hole part and a right eyepiece hole part that are connected to each other. The left eyepiece hole part and the right eyepiece hole part are located on two sides of a nose support <NUM>. The left eyepiece hole part and the right eyepiece hole part are connected to each other on sides opposite to each other. The left eyepiece hole part corresponds to the lens hole <NUM> corresponding to the left eye of the user in the lens frame <NUM>, and the right eyepiece hole part corresponds to the lens hole <NUM> corresponding to the right eye of the user in the lens frame <NUM>. Areas of the left eyepiece hole part and the right eyepiece hole part are generally greater than areas of the corresponding lens holes <NUM>, to enlarge a field of view of the eyepiece hole <NUM>. In this way, an edge of the eyepiece hole <NUM> does not block light emitted by the display device from entering human eyes.

A surface that is of the ring-shaped spring plate <NUM> and that is away from the support <NUM> is a face fitting surface. The face fitting surface is a surface fitting the face of the user. A width of each side edge of the ring-shaped spring plate <NUM> is greater than a thickness of the ring-shaped spring plate. In this way, when the face fitting surface of the ring-shaped spring plate <NUM> fits the face of the user, a contact area between the ring-shaped spring plate <NUM> and the face of the user is relatively large. Therefore, when the user wears the mask for a long time, the ring-shaped spring plate <NUM> is forced into the face of the user, causing a significant indentation or a ligature mark on the face of the user.

The left side edge and the right side edge of the ring-shaped spring plate <NUM> are respectively connected to left and right sides of the lens frame <NUM> by using the elastic support <NUM>. Both the upper side edge and the lower side edge of the ring-shaped spring plate <NUM> are in an arc shape. A middle part of the lower side edge of the ring-shaped spring plate <NUM> is sunken to the support <NUM> to form the nose support <NUM>. As shown in <FIG>, a part that is of the spring plate and that forms the nose support <NUM> is twisted by a specified angle relative to the remaining region of the lower side edge, or the spring plate in the nose support <NUM> is inclined by a specific angle relative to the spring plate in the remaining region of the lower side edge. The angle is greater than <NUM> degrees and less than <NUM> degrees. When the user wears the mask, the part that is of the ring-shaped spring plate <NUM> and that is located in the nose support <NUM> fits the nose of the user, and the ring-shaped spring plate <NUM> in the remaining region other than the nose support <NUM> fits the face of the user. By using this design, a fitting effect between the face fitting spring plate <NUM> and the face of the user can be improved, and the nose support <NUM> fits the nose of the user to support the mask, thereby preventing the mask from slipping from the face of the user and improving comfortableness of the mask.

In the mask provided in Embodiment <NUM> of this application, both the face fitting spring plate <NUM> and the elastic support <NUM> can be deformed under an external force. Therefore, when different users wear the mask, the face fitting spring plate <NUM> and the elastic support <NUM> are deformed in different degrees, so that the face fitting spring plate <NUM> can fit faces of different users. In related technologies, a plurality of foam layers are used to be adapted to different face shapes. In comparison with the related technologies, the mask is applicable to different face shapes without using the plurality of foam layers. In this way, a thickness of the face fitting part of the mask is significantly reduced, and air permeability of the mask is improved, thereby further improving wearing comfortableness of the mask. In addition, because the foam use amount is greatly reduced, a volume of the mask may also be significantly reduced, thereby improving convenience in carrying the mask.

In the foregoing mask, materials of the support <NUM>, the elastic support <NUM>, and the face fitting spring plate <NUM> may be plastic, metal, or alloy. In addition, the support <NUM>, the elastic support <NUM>, and the face fitting spring plate <NUM> may be an integrated molding structure. For example, the support <NUM>, the elastic support, and the face fitting spring plate <NUM> are an integrated injection molding structure. However, this is not limited thereto. The support <NUM>, the elastic support <NUM>, and the face fitting spring plate <NUM> may alternatively be independent parts to form the foregoing structure of the mask in a connection manner such as screwing, welding, or bonding. For example, the support <NUM>, the elastic support <NUM>, and the face fitting spring plate <NUM> are respectively titanium alloy parts, and are connected together in a welding manner.

To facilitate wearing performed by the user, in a possible implementation, the foregoing mask generally further includes a headband. Both ends of the headband may be connected to the left and right sides of the lens frame <NUM>, or may be connected to the left and right sides of the face fitting spring plate <NUM>. When the user wears the mask, the mask may be fastened to the face of the user through adjusting the headband. In addition, the headband generates a pulling force, and exerts the pulling force to the face fitting spring plate <NUM> and the elastic support <NUM>, so that the face fitting spring plate <NUM> is deformed. In this way, a shape of the face fitting spring plate <NUM> matches the face of the user, so that the face fitting spring plate <NUM> fits the face of the user.

As shown in <FIG>, a mask provided in Embodiment <NUM> of this application includes a support <NUM>, an elastic support <NUM>, and a face fitting spring plate <NUM>. The support <NUM> includes a sheet-like frame <NUM> and lens holes <NUM> disposed in the sheet-like frame <NUM>. A frame thickness h of the sheet-like frame <NUM> is far less than a width w of the frame, so that a side wall of the lens hole <NUM> is tubular. In a length direction of the sheet-like frame <NUM>, the lens holes <NUM> include a left-eye lens hole and a right-eye lens hole that are connected to each other. The left-eye lens hole and the right-eye lens hole form a B-shaped through hole. In this design, no obstacle exists in regions corresponding to left and right eyes of a user, thereby improving image integrity in the eyes of the user. An arc-shaped notch <NUM> is disposed between the left-eye lens hole and the right-eye lens hole. The arc-shaped notch <NUM> corresponds to a nose support of the face fitting spring plate <NUM>.

A middle part of the face fitting spring plate <NUM> is sunken to the support <NUM>. In a direction from left to right of the lens frame <NUM>, the face fitting spring plate <NUM> is approximately in an arc shape. A contour shape of the face fitting spring plate <NUM> is similar to a contour of the face of the user. More specifically, the contour shape of the face fitting spring plate <NUM> is similar to the contour of the face above the nose of the user. When the user wears the mask, the face fitting spring plate <NUM> can fit the face of the user. The face fitting spring plate <NUM> is made of an elastic material, so that the face fitting spring plate can be deformed under an external force. In this way, the face fitting spring plate can fit different face shapes, thereby improving applicability of the mask.

In this embodiment, the face fitting spring plate <NUM> includes a ring-shaped spring plate <NUM>. The ring-shaped spring plate <NUM> is a sheet-like elastic plate with an opening inside. The opening inside the ring-shaped spring plate <NUM> is an eyepiece hole <NUM>. Content displayed by using a display apparatus enters the eyes of the user through the lens holes <NUM> and the eyepiece hole <NUM>. A shape of the ring-shaped spring plate <NUM> is similar to a shape of a racetrack. The ring-shaped spring plate <NUM> includes a left side edge and a right side edge that are disposed opposite to each other, and an upper side edge and a lower side edge that are disposed opposite to each other. The upper side edge and the lower side edge are two long side edges of the ring-shaped spring plate, and the left side edge and the right side edge are two short side edges of the ring-shaped spring plate. The upper side edge and the lower side edge are located between the left side edge and the right side edge, and are separately connected to the left side edge and the right side edge. The left side edge, the right side edge, the upper side edge, and the lower side edge are an integrated structure. The eyepiece hole <NUM> is enclosed by using the left side edge, the right side edge, the upper side edge, and the lower side edge. The eyepiece hole <NUM> includes a left eyepiece hole part and a right eyepiece hole part that are connected to each other. The left eyepiece hole part and the right eyepiece hole part are located on two sides of the nose support <NUM>. The left eyepiece hole part and the right eyepiece hole part are connected to each other on sides opposite to each other. The left eyepiece hole part corresponds to the left-eye lens hole <NUM> in the lens frame <NUM>, and the right eyepiece hole part corresponds to the right-eye lens hole <NUM> in the lens frame <NUM>. Areas of the left eyepiece hole part and the right eyepiece hole part are generally greater than areas of the lens holes <NUM>, to enlarge a field of view of the eyepiece hole. In this way, the face fitting spring plate does not block light emitted by the display device.

The left side edge and the right side edge of the ring-shaped spring plate <NUM> are respectively connected to left and right sides of a frame board <NUM> by using the elastic support <NUM>. Both the upper side edge and the lower side edge of the ring-shaped spring plate <NUM> are in an arc shape. A middle part of the lower side edge of the ring-shaped spring plate <NUM> is sunken to the support <NUM> to form the nose support <NUM>. As shown in <FIG>, a part that is of the spring plate and that forms the nose support <NUM> is twisted by a specified angle relative to the remaining region of the lower side edge, or the spring plate in the nose support <NUM> is inclined by a specific angle relative to the spring plate in the remaining region of the lower side edge. The angle is greater than <NUM> degrees and less than <NUM> degrees. When the user wears the mask, the part that is of the ring-shaped spring plate <NUM> and that is located in the nose support <NUM> fits the nose of the user, and the ring-shaped spring plate <NUM> in the remaining region other than the nose support <NUM> fits the face of the user. By using this design, a fitting effect between the face fitting spring plate <NUM> and the face of the user can be improved, and the nose support <NUM> fits the nose of the user to support the mask, thereby preventing the mask from slipping from the face of the user and improving comfortableness of the mask.

A shape of the elastic support <NUM> is the same as or similar to a shape of the face fitting spring plate <NUM>. A size of the elastic support <NUM> is the same as or similar to a size of the face fitting spring plate <NUM>. In other words, the elastic support <NUM> also includes a ring-shaped spring plate. The ring-shaped spring plate is a sheet-like elastic plate with an opening inside. The opening inside the ring-shaped spring plate corresponds to the eyepiece hole <NUM> of the face fitting spring plate <NUM>. Content displayed by using the display apparatus enters the eyes of the user through the lens holes <NUM> and the eyepiece hole <NUM>.

In this embodiment, as shown in <FIG>, the elastic support <NUM> is located between the support <NUM> and the face fitting spring plate <NUM>. A middle part of the elastic support <NUM> is connected to a middle part of the support <NUM>. Left and right sides of the elastic support <NUM> are respectively connected to left and right sides of the face fitting spring plate <NUM> by using a connector <NUM>. In this design, in comparison with Embodiment <NUM> in which the elastic support <NUM> is a long-strip-shaped elastic strip, the elastic support <NUM> is an elastic support <NUM> that is the same as or similar to the face fitting spring plate <NUM> and that is used to connect the support <NUM> and the face fitting spring plate <NUM>, thereby greatly improving entire strength of the mask and protect the mask from damage. In addition, when the user wears the mask in Embodiment <NUM>, the elastic support <NUM> that is the same as or similar to the face fitting spring plate <NUM> is used to support the face fitting spring plate <NUM>, so that the face fitting spring plate <NUM> has better stability.

In the mask provided in Embodiment <NUM> of this application, both the face fitting spring plate <NUM> and the elastic support <NUM> can be deformed under an external force. Therefore, when different users wear the mask, the face fitting spring plate <NUM> and the elastic support <NUM> are deformed in different degrees, so that the face fitting spring plate <NUM> can fit faces of different users. In related technologies, a plurality of foam layers are used to be adapted to different face shapes. In comparison with the related technologies, the mask is applicable to different face shapes without using the plurality of foam layers. In this way, a thickness of a face fitting part of the mask is significantly reduced, and air permeability of the mask is improved, thereby further improving wearing comfortableness of the mask. In addition, because the foam use amount is greatly reduced, a volume of the mask may also be significantly reduced, thereby improving convenience in carrying the mask.

In the foregoing mask, materials of the support <NUM>, the elastic support <NUM>, the face fitting spring plate <NUM>, and the connector <NUM> may be plastic, metal, or alloy. In addition, the support <NUM>, the elastic support <NUM>, the face fitting spring plate <NUM>, and the connector <NUM> may be an integrated molding structure. For example, the support <NUM>, the elastic support <NUM>, the face fitting spring plate <NUM>, and the connector <NUM> are an integrated injection molding structure. However, this is not limited thereto. The support <NUM>, the elastic support <NUM>, the face fitting spring plate <NUM>, and the connector <NUM> may alternatively be independent parts to form the foregoing structure of the mask in a connection manner such as screwing, welding, or bonding. For example, the support <NUM>, the elastic support <NUM>, the face fitting spring plate <NUM>, and the connector <NUM> are respectively titanium alloy parts, and are connected together in a welding manner.

To facilitate wearing performed by the user, in a possible implementation, the foregoing mask generally further includes a headband. Both ends of the headband may be connected to the left and right sides of the lens frame <NUM>, or may be connected to the left and right sides of the face fitting spring plate <NUM>. When the user wears the mask, the mask may be fastened to the face of the user through adjusting the headband. In addition, the headband generates a pulling force, and exerts the pulling force to the face fitting spring plate <NUM>, so that the face fitting spring plate <NUM> is deformed. In this way, a shape of the face fitting spring plate <NUM> matches the face of the user, so that the face fitting spring plate fits the face of the user.

An embodiment of this application further provides a head-mounted display device. The head-mounted display device includes the mask described in the foregoing embodiments, and the display apparatus disposed in front of the mask. In front of the mask indicates a surface that is of a support and that is away from a face fitting spring plate. The display apparatus may be an apparatus for displaying information such as a text, an image, or an animation, for example, a mobile phone, a game console, or a tablet computer. When a user wears the head-mounted display device, the face fitting spring plate of the mask fits the face of the user. Because the face fitting spring plate can be deformed when being under an external force. In this way, the face fitting spring plate can be deformed adaptively according to different face shapes, so that the face fitting spring plate can fit faces of different users. In related technologies, a plurality of foam layers need to be used to be adapted to different face shapes. In comparison with the related technologies, a foam use amount of a face fitting part of the mask is greatly reduced, and air permeability of the mask is improved, thereby further improving wearing comfortableness of the mask. In addition, because the foam use amount is greatly reduced, a volume of the mask may also be significantly reduced, thereby improving convenience in carrying the mask.

In the descriptions in this specification, descriptions about reference terms such as "an embodiment", "some embodiments", "an example", "a specific example", and "some examples" mean that specific features, structures, materials, or characteristics described with reference to the embodiments or examples are included in at least one embodiment or example of this application. In the specification, the foregoing example expressions of the terms are not necessarily with respect to a same embodiment or example. In addition, the described specific features, structures, materials, or characteristics may be combined in a proper manner in any one or more of the embodiments or examples.

Claim 1:
A mask (<NUM>), comprising a support (<NUM>), an elastic support (<NUM>), and a face fitting spring plate (<NUM>), wherein lens holes (<NUM>), are disposed in the support, the face fitting spring plate is connected to the support by using the elastic support, a middle part of the face fitting spring plate is sunken to the support, an eyepiece hole (<NUM>) facing the lens holes is disposed in the face fitting spring plate, and a nose support (<NUM>), is disposed in a middle part on a lower side edge of the face fitting spring plate,
wherein the support comprises a frame plate, a left-eye lens hole and a right-eye lens hole are disposed in the frame board, and the left-eye lens hole and the right-eye lens hole form the lens holes,
characterized in that at least one lightening hole (<NUM>) is disposed in a region located between the left-eye lens hole and the right-eye lens hole of the support,
wherein the elastic support is two U-shaped elastic strips or two V-shaped elastic strips, and left and right sides of the face fitting spring plate are respectively connected to left and right sides of the support by using the U-shaped elastic strips or the V-shaped elastic strips,
two ends of one of the U-shaped elastic strips or the V-shaped elastic strips are connected to middle parts of upper and lower side edges of the left-eye hole, two ends of the other one of the U-shaped elastic strips or the V-shaped elastic strips are connected to middle parts of upper and lower side edges of the right-eye hole, and a bottom of the respective U-shaped elastic strip is connected to the face fitting spring plate.