Mask and head-mounted display device

Abstract

The application provides a mask and a head-mounted display device, wherein the mask comprises a plurality of folded surface structures arranged side by side, the folded surface structure has at least two folded surface bodies arranged in a stacking manner along the thickness direction of the mask, one side edge of two adjacent folded surface bodies is connected, and the other side edge is arranged in a spaced manner to form an opening; one of the folded surface structures is partially arranged in the opening of the other folded surface structure between two adjacent folded surface structures, and the two folded surface structures are arranged in a spaced manner to form an air duct between the two adjacent folded surface structures, which communicates the inside and outside of the mask in the thickness direction. The technical scheme of the application can make the mask and the head-mounted display device have good light shielding and air permeability.

Description

Technical Field

[0001] This invention relates to the field of head-mounted display technology, and particularly to a face mask and a head-mounted display device. Background Technology

[0002] VR (Virtual Reality) devices, MR (Mixed Reality) devices, and other head-mounted display devices are typically designed as helmets or glasses to be worn over the user's face. In this case, the head-mounted display device needs to have good light-blocking properties to prevent external light from affecting the user's viewing. However, the face masks of current head-mounted display devices are mostly made of foam material as the inner core, covered with fabric or PU material. Foam material is soft but not breathable, and the heat generated during device use can cause stuffiness and discomfort on the forehead and eyes. Summary of the Invention

[0003] The main objective of this invention is to provide a face mask and head-mounted display device that have good light-blocking and breathability.

[0004] To achieve the above objectives, the present invention provides a face mask comprising a plurality of folded structures arranged side by side, wherein each folded structure has at least two folded bodies stacked along the thickness direction of the face mask, wherein one side of two adjacent folded bodies is connected and the other side is spaced apart to form an opening;

[0005] Between two adjacent folded structures, one of the folded structures is partially inserted into the opening of the other folded structure, and the two folded structures are spaced apart to form an air duct connecting the inner and outer sides of the mask in the thickness direction between the two adjacent folded structures.

[0006] In one embodiment of this application, at least one of the two folded bodies forming the opening is an arc-shaped structure;

[0007] And / or, at least a portion of the faceplate near the outer side of the mask is an arc-shaped structure protruding outwards from the mask.

[0008] In one embodiment of this application, at least a portion of the folded surface forming the periphery of the air duct is provided with a light-absorbing structure.

[0009] In one embodiment of this application, the light-absorbing structure includes a plurality of protrusions.

[0010] In one embodiment of this application, the side of two adjacent folded bodies in the folded structure is inserted into the opening of another folded structure.

[0011] In one embodiment of this application, between two adjacent folded structures, the insertion end of one folded structure is spaced apart from the folded body surface of the other folded structure, and a portion of the edge of the insertion end is connected to the folded body of the other folded structure via a connector.

[0012] In one embodiment of this application, the connector is an elastic connector.

[0013] In one embodiment of this application, the elastic connector of the mask has different stiffness in at least two regions.

[0014] In one embodiment of this application, the hardness of the faceplate is different in at least two regions located inside the mask.

[0015] In one embodiment of this application, the folded structure includes at least three folded bodies. Among the three adjacent folded bodies, the two oppositely arranged sides of the folded body located in the middle layer are respectively connected to the other two folded bodies, and the two adjacent openings of the folded structure are arranged back to back.

[0016] In one embodiment of this application, the folded structure extends along a first direction, and each of the folded structures is arranged sequentially along a second direction, wherein the first direction and the second direction are set at an angle.

[0017] And / or, the mask is a ring-shaped structure.

[0018] In one embodiment of this application, the mask is formed using an additive manufacturing method.

[0019] This application also proposes a head-mounted display device, the head-mounted display device including a mask as described in any of the foregoing embodiments, the mask including a plurality of folded structures arranged side by side, the folded structure having at least two folded bodies stacked along the thickness direction of the mask, one side of two adjacent folded bodies being connected, and the other side being spaced apart to form an opening;

[0020] Between two adjacent folded structures, one of the folded structures is partially inserted into the opening of the other folded structure, and the two folded structures are spaced apart to form an air duct connecting the inner and outer sides of the mask in the thickness direction between the two adjacent folded structures.

[0021] The technical solution of this invention provides a face mask composed of several folded structures arranged in a specific pattern. Each folded structure has at least two folded bodies connected sequentially along the thickness direction of the face mask. Two adjacent folded bodies in the folded structure are arranged at an angle and form an opening facing another folded structure, allowing a portion of the other folded structure to be inserted into this opening. This results in partial overlap between adjacent folded structures and a gap between them. Because any two adjacent folded structures are staggered and partially overlapped in their arrangement direction, the face mask does not have any openwork areas. The mask is designed to prevent external light from passing through, thus providing excellent light-blocking capabilities. The spacing between adjacent folded structures creates a tortuous airflow channel connecting both sides of the mask in the thickness direction, allowing air exchange between the inside and outside of the mask and providing good ventilation and heat dissipation. When applied to head-mounted displays, the mask also enhances light-blocking and breathability, reducing the impact of external light on the user's viewing experience and preventing stuffiness, thereby improving the user experience. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a structural diagram of an embodiment of the face mask of the present invention;

[0024] Figure 2 This is a schematic diagram of the two-fold structure combination and optical path in one embodiment of the face mask of the present invention;

[0025] Figure 3 for Figure 2 A diagram illustrating the airflow from the face mask;

[0026] Figure 4 This is a schematic diagram of the two-fold structure combination and optical path in another embodiment of the face mask of the present invention;

[0027] Figure 5 for Figure 4 A diagram illustrating the airflow from the face mask;

[0028] Figure 6 This is a schematic diagram of an embodiment of the folded structure of the face mask of the present invention;

[0029] Figure 7 This is a schematic diagram of the two-fold structure at the connection position in another embodiment of the face mask of the present invention;

[0030] Figure 8 This is a diagram illustrating the forces acting on the human face.

[0031] Explanation of icon numbers:

[0032] 100 face mask 15 Air duct 10 Folded structure 17 Plug end 11 folded body 30 connector 13 light-absorbing structure 200 Forehead area 131 protrusion 300 Cheekbone area

[0033] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0036] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0038] This application proposes a face mask 100 with good light-blocking and breathability.

[0039] Please refer to Figures 1 to 7 In some embodiments of this application, the face mask 100 includes a plurality of folded structures 10 arranged side by side. Each folded structure 10 has at least two folded bodies 11 stacked along the thickness direction of the face mask 100. One side of two adjacent folded bodies 11 is connected, and the other side is spaced apart to form an opening.

[0040] Between two adjacent folded structures 10, one folded structure 10 is partially inserted into the opening of the other folded structure 10, and the two folded structures 10 are spaced apart to form an air duct 15 connecting the inner and outer sides of the mask 100 in the thickness direction between the two adjacent folded structures 10.

[0041] The mask 100 proposed in this application can be applied in head-mounted display devices such as VR (Virtual Reality) devices and MR (Mixed Reality) devices. The mask 100 is defined to have an inward and outward direction, that is, the thickness direction of the mask 100, and the inner side of the mask 100 is the side that touches the face. Specifically, the face mask 100 includes several folded structures 10 arranged side by side. These folded structures 10 combine to form the face-fitting main body of the face mask 100, generally in the form of a planar or cover structure, such as a curved surface, a flat surface, or a cover structure that conforms to the shape of the user's face. Each folded structure 10 includes at least two folded bodies 11 stacked along the thickness direction of the face mask 100. Each folded body 11 can be a flat surface, a curved surface, or other regular or irregular sheet-like structure. Each folded body 11 has two spaced-apart sides. Two adjacent folded bodies 11 in the same folded structure 10 have their sides connected on the same side, while the sides opposite to this connection are spaced apart, i.e., adjacent folded bodies 11 in the same folded structure 10 are arranged at an angle. The sides of the two folded bodies 11 away from the connecting side enclose an opening, which faces the other folded structure 10, such that the folded structure 10 opposite the opening... Partially inserted into the opening, the portion inserted into the opening is spaced apart from the edge of the opening and the two folded surfaces 11 on both sides of the opening. This creates an air duct 15 connecting the inside and outside of the mask 100 at the insertion and overlapping position of the two folded structures 10. The air duct 15 has at least one fold point that does not run straight through the thickness direction of the mask 100. With this arrangement, since any two adjacent folded structures 10 are partially staggered in the arrangement direction, the mask 100 as a whole forms a continuous light-blocking surface. External light hitting any position on the mask 100 can be blocked and cannot pass through the mask 100, giving the mask 100 a good light-blocking effect. The air duct 15 formed between any two folded structures 10 allows ventilation and air exchange on both the inside and outside of the mask, providing good breathability and heat dissipation, preventing the user from feeling stuffy when wearing the mask 100. In addition, when light is directed toward the folded structure 10 and reflected along the surfaces on both sides of the air duct 15, the tortuous air duct 15 increases the propagation path of the light and increases the loss of the light during the propagation process. This causes the light entering the air duct 15 to attenuate during propagation, which can also prevent the light from propagating from the air duct 15 into the inside of the mask 100, and also allows the mask 100 to have a better light-blocking effect.

[0042] In addition, the folded structure 10 is formed by at least two folded bodies 11 arranged at an angle. In the thickness direction of the mask 100, the folded structure 10 has a certain elastic deformation capability to absorb the impact force when the mask 100 is impacted, and play a certain degree of buffering role. This can reduce the risk of damage to the mask 100 and provide better protection for the user's face when the user wears the mask 100.

[0043] It should be noted that the insertion end 17 of the folded structure 10 inserted into another folded structure 10 can be the end of the folded body 11 away from the connection position, or the ends of two adjacent folded bodies 11 away from the connection position can be inserted into the same opening, or the connection position of two adjacent folded bodies 11 can be inserted into the opening; in addition, the folded structure 10 has at least two folded bodies 11 stacked together, which can be two or more. When there are two or more, taking three as an example, each folded body 11 can be stacked together. The same side of 1 is connected so that each opening formed by the folded structure 10 faces the same structure; or in the following embodiment, the upper and lower folded bodies 11 are respectively connected to the two sides of the middle folded body 11, so that the two adjacent openings are arranged back to back; in addition, when the folded structure 10 has two or more openings, the adjacent folded structures 10 can be provided with only one plug end 17 inserted into one of the openings, or at least two plug ends 17 can be provided and inserted into at least two openings respectively, which is not limited here.

[0044] It should also be noted that the folded structure 10 can be formed by bending or injection molding, and then the folded structures 10 can be connected to form the mask 100; or the folded structure 10 can be printed by additive manufacturing, such as 3D printing, or the mask 100 can be directly formed; in addition, the folded structures 10 can be arranged in a manner similar to a scale array structure. In this case, a connector 30 can be set between two adjacent folded structures 10 for connection and fixation; or the folded structure 10 can be set as a long strip structure, and multiple folded structures 10 can be arranged sequentially. In this case, a bracket can be set at the end of the folded structure 10 to fix each folded structure 10, so that the folded structures 10 can be combined and connected; or a connector 30 can be set between adjacent folded structures 10. When using the method of setting a connector 30 to connect two adjacent folded structures 10, the connector 30 must be smaller than the width of the air duct 15 to avoid the connector 30 blocking the air duct 15.

[0045] Therefore, it is understood that in the technical solution of the present invention, the mask 100 is composed of a plurality of folded structures 10 arranged in a manner; each folded structure 10 has at least two folded bodies 11 connected sequentially along the thickness direction of the mask 100, two adjacent folded bodies 11 in the folded structure 10 are arranged at an angle and form an opening facing another folded structure 10, and a portion of the other folded structure 10 is inserted into the opening, thereby partially overlapping the two adjacent folded structures 10 and spacing them apart; in this arrangement, the double-layered folded structure 10 can reduce light transmittance, and since any two adjacent folded structures 10 are staggered in the arrangement direction and partially overlapped, the mask 100 does not have any open spaces, preventing external light from directly passing through the mask 100, while when light enters the air duct 15 and passes through the folded body 10, it is avoided that the mask 100 has any open spaces. The surface reflects light repeatedly, and the tortuous air duct 15 structure extends the light reflection and propagation path, increasing light loss during transmission and causing significant light attenuation. This prevents light from entering the inside of the mask 100 through the air duct 15, giving the mask 100 a better light-shielding effect. Furthermore, the two adjacent folded structures 10 are spaced apart, forming a tortuous air duct 15 between the folded bodies 11 of the two folded structures 10, connecting the mask 100 on both sides in the thickness direction. This allows for air exchange between the inner and outer sides of the mask 100, resulting in better ventilation and heat dissipation. When the mask 100 is used in a head-mounted display device, it also provides better light-shielding and breathability, reducing the impact of external light on the user's viewing experience and preventing the user from feeling stuffy when wearing the head-mounted display device, thus improving the user experience.

[0046] Please refer to Figure 2 and Figure 3 In one embodiment of this application, at least one of the two folded bodies 11 forming the opening is an arc-shaped structure.

[0047] The technical solution of this application utilizes multiple overlapping folded structures 10 to form a connected light-shielding surface, while simultaneously forming a tortuous air duct 15 for ventilation. The tortuous nature of the air duct 15 also extends the propagation path of light within it, thereby increasing light loss and effectively blocking light. In this embodiment, at least one of the two folded bodies 11 forming the opening is an arc-shaped structure. This design increases the curvature of the reflective surface formed by the folded body 11, causing light to enter the air duct 15 and creating a diffuse reflection-like effect on the surface of the folded body 11. This results in multi-angle and multi-directional reflection of light on the surface of the folded body 11, increasing light loss and further blocking light, thus improving the light-shielding effect of the mask 100.

[0048] Please refer to Figure 2 and Figure 3 In one embodiment of this application, at least a portion of the faceplate 11 near the outer side of the mask 100 is an arc-shaped structure protruding outward from the mask 100.

[0049] In this embodiment, among the plurality of folded structures 10 that combine to form the mask 100, at least some of the outermost folded bodies 11 of the folded structures 10 are arc-shaped structures that bulge outward from the mask 100. With this configuration, when external light strikes the outer surface of the mask 100, some of the light will be reflected by the outermost folded bodies 11 of each folded structure 10. The outwardly convex arc-shaped reflective surfaces can reflect the light at multiple angles and in multiple directions, causing the reflected light to interfere with more light rays striking the mask 100, thus weakening the light rays striking the mask 100 and improving the mask 100's light-blocking effect. It should be noted that in this embodiment, all the outermost folded bodies 11 can be outwardly convex arc-shaped structures to achieve better light blocking; alternatively, only some of the outermost folded bodies 11 can be outwardly convex arc-shaped structures, which can also improve the light-blocking effect to a certain extent.

[0050] In some embodiments, at least one of the two folded bodies 11 that enclose the opening in the folded structure 10 is an arc-shaped structure. If one of the two folded bodies 11 that form the opening is the outermost folded body 11 of the folded structure 10, then at least the outermost folded body 11 can be set as an outwardly convex arc-shaped structure.

[0051] Please refer to Figure 6 In one embodiment of this application, at least a portion of the surface of the folded body 11 forming the periphery of the air duct 15 is provided with a light-absorbing structure 13.

[0052] In this embodiment, a light-absorbing structure 13 is provided on at least a portion of the sidewall of the air duct 15, that is, on at least a portion of the surface of the folded body 11 that encloses and forms the air duct 15. The light-absorbing structure 13 can be a light-absorbing coating or a rough surface as described in the following embodiment. The provision of the light-absorbing structure 13 can increase the light loss during the reflection and propagation of light entering the air duct 15 through the sidewall of the air duct 15, that is, the surface of the folded body 11, thereby improving the light absorption effect of the mask 100.

[0053] Please refer to Figure 6 In one embodiment of this application, the light-absorbing structure 13 includes a plurality of protrusions 131.

[0054] In this embodiment, at least a portion of the sidewalls of the air duct 15, i.e., at least a portion of the surface of the folded body 11 that encloses and forms the air duct 15, are provided with a plurality of protrusions 131 as light-absorbing structures 13. The plurality of protrusions 131 may include at least one of regular or irregular protrusions 131 such as spherical, hemispherical, rectangular, or sawtooth shapes. This arrangement makes at least a portion of the sidewalls of the air duct 15 a rough surface. When light enters the air duct 15 and is reflected and propagated through the sidewalls of the air duct 15, the light is scattered in multiple stages on the rough surface and absorbed and attenuated, causing the light intensity to decrease rapidly and improving the light-shielding effect of the mask 100.

[0055] In addition, it is understandable that having light-absorbing structures 13 on all areas of the inner surface of the folded body 11 that encloses the air duct 15 can effectively improve the light intensity attenuation effect. However, having light-absorbing structures 13 only in some areas can also improve the light-blocking effect of the mask 100 to a certain extent.

[0056] In one embodiment of this application, the folded structure 10 includes at least three folded bodies 11. Among the three adjacent folded bodies 11, the two oppositely arranged sides of the folded body 11 located in the middle layer are respectively connected to the other two folded bodies 11, and the two adjacent openings of the folded structure 10 are arranged back to back.

[0057] In this embodiment, the folded structure 10 includes three or more folded bodies 11 stacked and connected sequentially along the thickness direction of the mask 100. Taking any three adjacent folded bodies 11 as an example, the folded body 11 in the middle layer has two opposite sides, so that the two folded bodies 11 above and below the folded body 11 are connected, so that the folded structure 10 forms a reciprocating folded structure. At this time, the two openings adjacent to each other along the thickness direction of the mask 100 in the folded structure 10 are arranged back to back. At this time, a single folded structure 10 has at least three layers of folded bodies 11, which can reduce the light transmittance of the folded structure 10 and improve the light blocking effect. In addition, it can also increase the elastic buffering effect of the folded structure 10 in the thickness direction of the mask 100. In some embodiments, when two adjacent folded structures 10 have three or more folded bodies 11, the two folded structures 10 can be interlocked, extending the length of the air duct 15, improving the light blocking effect and improving the connection strength between the two folded structures 10.

[0058] Please refer to Figure 2 and Figure 3 In one embodiment of this application, the side of two adjacent folded bodies 11 in the folded structure 10 is inserted into the opening of another folded structure 10.

[0059] In the face mask 100 of this application, one portion of two adjacent folded structures 10 is inserted into the opening of another folded structure 10, with the end inserted into the opening serving as the insertion end 17. In this embodiment, two adjacent folded bodies 11 in the folded structure 10 are connected at one end to form the insertion end 17, which is then inserted into the opening of another folded structure 10.

[0060] Please refer to Figure 7 In one embodiment of this application, between two adjacent folded structures 10, the insertion end 17 of one folded structure 10 is spaced apart from the surface of the folded body 11 of the other folded structure 10, and a portion of the edge of the insertion end 17 is connected to the folded body 11 of the other folded structure 10 through a connector 30.

[0061] In this embodiment, two adjacent and interlocking folded structures 10 are connected by a connector 30, so that each folded structure 10 is sequentially connected to form a mask 100. Specifically, each folded body 11 of the folded structure 10 is approximately a sheet-like structure with various sides. Two adjacent folded structures 10 are defined as the first folded structure 10 and the second folded structure 10, and taking the first folded structure 10 inserted into the opening of the second folded structure 10 as an example, the ends of the first folded structure 10 inserted into the insertion end 17 of the second folded structure 10 have a certain length. At this time, the insertion end 17 and the surface of the folded body 11 inside the opening of the second folded structure 10 are spaced apart to form a connected air duct 15. At this time, at the insertion end 17 A connector 30 is provided at a portion of the end edge to connect the plug-in section to at least one of the folded bodies 11 that form an opening in the second folded structure 10, thereby connecting the first folded structure 10 and the second folded structure 10. The connector 30 is only provided at a portion of the end edge of the plug-in section, so it does not completely close the air duct 15. This arrangement can keep the relative positions of adjacent first folded structures 10 and second folded structures 10 stable, avoiding the problem of light leakage or closure of the air duct 15 due to misalignment of the first folded structure 10 and the second folded structure 10, and ensuring the stable light blocking and ventilation performance of the mask 100. It also eliminates the need for other support structures to fix each folded structure 10, making the structure of the mask 100 simpler.

[0062] Additionally, it should be noted that when there are at least two interlocking structures between two adjacent folded structures 10, for example, when the first folded structure 10 has at least two interlocking ends 17 inserted into the second folded structure 10, or when the first folded structure 10 has one interlocking end 17 inserted into the second folded structure 10, and the second folded structure 10 also has one interlocking end 17 inserted into the first folded structure 10, the connector 30 can be provided at each interlocking position, or the connector 30 can be provided at only one or some of the interlocking positions, which is not limited here.

[0063] In one embodiment of this application, the connector 30 is an elastic connector 30.

[0064] In this embodiment, the connector 30 used to connect two adjacent folded structures 10 is an elastic connector 30. With this configuration, when the mask 100 is subjected to external force, the elastic connector 30 can undergo elastic deformation under the action of the external force, thus acting as a buffer between the two adjacent folded structures 10. This avoids the rigid connection of the connector 30, which could lead to damage under large external forces. Furthermore, the elasticity of the connector 30 allows for a certain range of relative movement between the two adjacent folded structures 10, giving the mask 100 a certain degree of deformation capability. This allows the mask 100 to better fit the user's face when worn, and also reduces the risk of damage to the mask 100 from external impacts. The elastic connector 30 can be made of materials such as silicone, rubber, silicone adhesive, polyurethane adhesive, or thermoplastic polyester elastomer. It can be formed by injecting adhesive or similar materials between the two folded structures 10 and allowing the adhesive to solidify, or it can be formed through additive manufacturing methods such as 3D printing; no limitation is made here.

[0065] In one embodiment of this application, the elastic connector 30 of the mask 100 has different hardness in at least two regions.

[0066] In this embodiment, the elastic connectors 30 in at least two regions have different hardnesses, resulting in different degrees of elasticity and ease of deformation under stress in each region. This allows the mask 100 to deform in different regions when the user wears it, applying the required pressure to each area of ​​the user's face. For example, the hardness of the elastic connectors 30 in each region can be set according to the degree of pressure experienced by different areas of the face. Please refer to [reference needed]. Figure 8 , Figure 8 As shown in the tolerance analysis diagram of the human face, it is understandable that due to differences in facial bone distribution and individual perception, the degree of pressure and force that a user can withstand and feel relatively comfortable varies in different areas of the face. For head-mounted display devices, the areas that typically come into contact with and apply pressure include the forehead area 200 and the cheekbone areas 300 on both sides of the nose. Therefore, based on the different fixing methods and structural forms of the mask 100 and the head-mounted display device, as well as the different tolerances of users in different areas, elastic connectors 30 with the required hardness can be set in each area. Thus, when the user wears the mask 100, different areas of the mask 100 can deform accordingly and apply the required pressure to each area of ​​the user's face, improving the user experience.

[0067] It should be noted that the above description is only one implementation method of regional division. Other methods can be used to divide the human face to create two regions with different forces, or multiple regions.

[0068] In one embodiment of this application, the hardness of the faceplate 11 located in at least two regions inside the mask 100 is different.

[0069] In this embodiment, the hardness of the faceplate 11 in at least two areas on the inner surface of the mask 100 that contacts the user is different. This results in different hardnesses of the mask 100 felt by different facial areas when the user wears it, thus providing the user with a better wearing experience. Similarly, the hardness of the faceplate 11 in each area can be adjusted according to the degree of pressure on different facial areas and the user's tolerance in different facial areas. The faceplate 11 in different areas can be made of different materials to achieve different hardnesses, which is not limited here.

[0070] In one embodiment of this application, the folded structure 10 extends along a first direction, and each of the folded structures 10 is arranged sequentially along a second direction, with the first direction and the second direction forming an angle.

[0071] In this embodiment, a first direction and a second direction are defined along the surface of the mask 100 at an angle. The folded structures 10 extend along the first direction, such that each folded body 11 is approximately elongated, and adjacent folded bodies 11 are connected by one of their long sides. The folded structures 10 are arranged sequentially along the second direction. This arrangement creates a relatively long air duct 15 extending along the first direction between adjacent folded structures 10. It is understood that when the width of the air duct 15 is smaller, the air resistance encountered by the airflow is greater due to the slit effect, resulting in greater airflow loss during flow and affecting the breathability of the mask 100. Increasing the width of the air duct 15 reduces the flow resistance of the airflow within it, allowing for faster airflow for ventilation and better heat dissipation. Furthermore, compared to a scale-like arrangement of folded structures 10, this arrangement reduces the number of folded structures 10, simplifies the mask 100 structure, reduces the manufacturing difficulty of the mask 100, and improves the production efficiency of the mask 100.

[0072] Please refer to Figure 1 In one embodiment of this application, the mask 100 has a ring structure.

[0073] In this embodiment, the mask 100 is configured as a ring structure. When a user uses the mask 100 or the corresponding head-mounted display device, the mask 100 can be worn around the user's head, which can improve the stability of the mask 100 when worn and prevent it from falling off. In some embodiments, the folded structure 10 of the mask 100 extends along a first direction, and the folded structures 10 are arranged along a second direction. In this case, the folded structures 10 can be arranged around the user, that is, the circumference of the ring structure is taken as the first direction. In this case, the folded structures 10 can be connected to each other to maintain the structural integrity and continuity of the mask 100.

[0074] In one embodiment of this application, the mask 100 is formed using an additive manufacturing method.

[0075] In this embodiment, the mask 100 is made by additive manufacturing methods such as 3D printing. The processing method is relatively simple, reducing the assembly process of the mask 100. Moreover, only the printing process of the equipment needs to be set, and the materials used in different areas can be adjusted to meet the material usage requirements of different areas.

[0076] This application also proposes a head-mounted display device, which includes a mask 100 as described in any of the foregoing embodiments. The structure of the mask 100 is the same as in the foregoing embodiments and will not be repeated here. The head-mounted display device proposed in this application can be a VR (Virtual Reality) device, MR (Mixed Reality), or AR (Augmented Reality) device, and can be a helmet, glasses, or mask, etc., without limitation.

[0077] Since the head-mounted display device proposed in this application applies all the technical solutions of all the foregoing embodiments, it has at least all the beneficial effects brought by all the foregoing technical solutions, which will not be elaborated here.

[0078] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A face mask, characterized in that, The face mask includes several folded structures arranged side by side, and the several folded structures are combined to form the face-fitting body of the face mask. Each folded structure has at least two folded bodies stacked along the thickness direction of the face mask. One side of two adjacent folded bodies is connected, and the other side is spaced apart to form an opening. The folded structure has elastic deformation capability in the thickness direction of the face mask. Between two adjacent folded structures, one of the folded structures is partially inserted into the opening of the other folded structure, and the two folded structures are spaced apart to form an air duct connecting the inner and outer sides of the mask in the thickness direction between the two adjacent folded structures.

2. The face mask as described in claim 1, characterized in that, Of the two faceted bodies that form the opening, at least one faceted body is an arc-shaped structure; And / or, at least a portion of the faceplate near the outer side of the mask is an arc-shaped structure protruding outwards from the mask.

3. The face mask as described in claim 1, characterized in that, At least a portion of the folded surface forming the periphery of the air duct is provided with a light-absorbing structure.

4. The face mask as described in claim 1, characterized in that, The side of the two adjacent folded bodies in the folded structure is inserted into the opening of another folded structure.

5. The face mask as described in claim 1, characterized in that, Between two adjacent folded structures, the insertion end of one folded structure is spaced apart from the folded body surface of the other folded structure, and a portion of the edge of the insertion end is connected to the folded body of the other folded structure via a connector.

6. The face mask as described in claim 5, characterized in that, The connector is an elastic connector.

7. The face mask as claimed in claim 1, characterized in that, The folded structure includes at least three folded bodies. Among the three adjacent folded bodies, the two opposite sides of the folded body located in the middle layer are respectively connected to the other two folded bodies, and the two adjacent openings of the folded structure are arranged back to back.

8. The face mask as claimed in claim 1, characterized in that, The folded structure extends along a first direction, and each of the folded structures is arranged sequentially along a second direction, with the first direction and the second direction forming an angle. And / or, the mask is a ring-shaped structure.

9. The face mask as described in any one of claims 1 to 8, characterized in that, The mask is manufactured using an additive manufacturing method.

10. A head-mounted display device, characterized in that, The head-mounted display device includes a face mask as described in any one of claims 1 to 9.

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