Display module and head-mounted device

Abstract

The present application provides a display module and a head-mounted device. The display module includes: a display lens, a host, and a rigid seal; the display lens is connected to the host, and the display lens is provided with a waveguide plate; the waveguide plate is configured to present a virtual reality or augmented reality environment under the control of the host; the rigid seal is disposed between the waveguide plate and the host and is in contact with the waveguide plate and the host respectively, and one side of the rigid seal close to the waveguide plate is further configured to have a rough surface so as to form a gap between the waveguide plate and the rigid seal. In this way, not only can the rigid seal be used to seal the waveguide plate and the host, but also the stacked thickness and weight of the display lens can be reduced.

Description

Technical Field

[0001] This application relates to the technical field of electronic devices, and more particularly to a display module and a head-mounted device. Background Art

[0002] With the continuous development and popularization of smart glasses, more and more electronic devices are installed in existing smart glasses, and the functions realized are becoming more and more comprehensive, so that people often wear smart glasses to go out for work or social activities. Therefore, how to reduce the weight of smart glasses has become the main concern of the industry. Summary of the Invention

[0003] One aspect of the embodiments of this application provides a display module, which includes: a display lens, a host, and a rigid seal; the display lens is connected to the host, and the display lens is provided with a waveguide; the waveguide is configured to present a virtual reality or augmented reality environment under the control of the host; the rigid seal is disposed between the waveguide and the host, and is in contact with the waveguide and the host respectively, and one side of the rigid seal close to the waveguide is further configured to have a rough surface so as to form a gap between the waveguide and the rigid seal.

[0004] Another aspect of the embodiments of this application further provides a head-mounted device, which includes: a wearing bracket and a display module, and the display module is provided with a display lens, a host, and a rigid seal; the display lens is connected to the host, and the display lens is provided with a waveguide; the waveguide is configured to present a virtual reality or augmented reality environment under the control of the host; the host is connected to the wearing bracket; the rigid seal is disposed between the waveguide and the host, and is in contact with the waveguide and the host respectively, and one side of the rigid seal close to the waveguide is further configured to have a rough surface so as to form a gap between the waveguide and the rigid seal.

[0005] In another aspect of the embodiments of the present application, a display module is further provided. The display module includes: a display lens, a frame, a host, and a rigid seal; the display lens is disposed on the frame, and the frame is connected to the host; the display lens is further provided with a waveguide sheet; the waveguide sheet is configured to present a virtual reality or augmented reality environment under the control of the host; the rigid seal is disposed between the waveguide sheet and the host and is in contact with the waveguide sheet and the host respectively, and one side of the rigid seal close to the waveguide sheet is further configured to have a rough surface so that a gap is formed between the waveguide sheet and the rigid seal; one of the frame and the host is provided with a connecting member, and the other is provided with a mating member; the connecting member is configured to be insertable into the mating member and rotatable relative to the mating member after being inserted into the mating member, and the connecting member is further configured to be engaged with the mating member after rotating relative to the mating member.

[0006] In the display module provided by the embodiments of the present application, by disposing a rigid seal between the waveguide sheet and the host, and one side of the rigid seal close to the waveguide sheet has a rough surface, not only can the rigid seal be used to seal the waveguide sheet and the host, but also a gap can be formed between the waveguide sheet and the rigid seal, so as to form an air layer on the waveguide sheet by using the gap to achieve total reflection of the waveguide sheet. Compared with ordinary display lenses, the display lens provided in this embodiment can cancel the protective glass on the surface of the waveguide sheet, directly use the rigid seal to seal the waveguide sheet and the host, and will not damage the air layer on the surface of the waveguide sheet, so as to reduce the stacking thickness and weight of the display lens while achieving total reflection of the waveguide sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0008] Figure 1 is a schematic structural diagram of a head-mounted device 5 provided by the embodiments of the present application;

[0009] Figure 2 is Figure 1 a schematic structural diagram of the wearing bracket 10 in

[0010] Figure 3 is Figure 1 a schematic structural diagram of the display module 20 in

[0011] Figure 4 is Figure 3Schematic diagram of the structure of the middle lens assembly 200;

[0012] Figure 5 is Figure 4 Schematic diagram of the laminated structure of the display lens 210 in the middle;

[0013] Figure 6 is Figure 4 Schematic diagram of the structure of the middle frame 220;

[0014] Figure 7 is Figure 6 Schematic diagram of the structure of the middle frame 220 from another perspective;

[0015] Figure 8 is Figure 7 Partial enlarged view of part A in the middle;

[0016] Figure 9 is Figure 3 Schematic diagram of a partial cross-sectional structure of the middle display module 20 along V-V;

[0017] Figure 10 is Figure 9 Schematic diagram of the structure of the middle housing 310;

[0018] Figure 11 is Figure 10 Partial enlarged view of part B in the middle;

[0019] Figure 12 is Figure 9 Partial enlarged view of part C in the middle;

[0020] Figure 13 is Figure 9 Schematic diagram of the state where the engaging part 2223 is inserted into the mating part 312 in the middle;

[0021] Figure 14 is Figure 13 Another schematic diagram of the state where the engaging part 2223 is inserted into the mating part 312 in the middle;

[0022] Figure 15 is Figure 14 Another schematic diagram of the state where the engaging part 2223 is inserted into the mating part 312 in the middle;

[0023] Figure 16 is Figure 15 Schematic diagram of the state where the engaging part 2223 is inserted into the mating part 312 in an embodiment;

[0024] Figure 17 is Figure 15 Schematic diagram of the state where the engaging part 2223 is inserted into the mating part 312 in another embodiment;

[0025] Figure 18 is Figure 15Schematic diagram of the state of the middle engaging part 2223 inserted into the mating part 312 in another embodiment;

[0026] Figure 19 It is a schematic structural diagram of the dust cover 30 provided by the embodiment of the present application;

[0027] Figure 20 It is a schematic connection structure diagram of the earhook 40 and the host 300 provided by the embodiment of the present application;

[0028] Figure 21 Is Figure 20 It is a schematic cross-sectional structure diagram of the dust cover 30, the earhook 40, and the housing 310 along IV-IV;

[0029] Figure 22 Is Figure 3 It is another partial cross-sectional structure diagram of the display module 20 along V-V in the middle;

[0030] Figure 23 Is Figure 22 It is a partial enlarged view at D in the middle;

[0031] Figure 24 Is Figure 22 It is a schematic structural diagram of the rigid seal 500 in the middle;

[0032] Figure 25 Is Figure 24 It is a partial enlarged view at E in the middle;

[0033] Figure 26 Is Figure 24 It is another partial schematic diagram at E in the middle;

[0034] Figure 27 It is another schematic structural diagram of the head-mounted device 5 provided by the embodiment of the present application. Detailed implementation manners

[0035] Next, with reference to the drawings and embodiments, the present application will be further described in detail. It should be particularly noted that the following embodiments are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following embodiments are only partial embodiments of the present application rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0036] When "embodiment" is mentioned in the present application, it means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0037] This application describes a head-mounted device. The head-mounted device can be an augmented reality or virtual reality device, such as augmented reality or virtual reality glasses. Of course, the head-mounted device can also be other devices that need to be worn on the head, such as glasses, such as devices with other functions such as lighting and wearable on the head, which will not be elaborated here. Hereinafter, augmented reality or virtual reality glasses will be taken as an example for detailed elaboration.

[0038] In the example of augmented reality or virtual reality glasses, the head-mounted device can be configured to transmit data to an external processing device via a signal connection and receive data from the external processing device. The signal connection can be a wired connection, a wireless connection, or a combination thereof. However, in other cases, the head-mounted device can be used as a stand-alone device, that is, data processing is performed within the head-mounted device itself. The signal connection can be configured to carry any kind of data, such as image data (e.g., still images and / or full-motion video, including 2D and 3D images), audio, multimedia, voice, and / or any other type of data. The external processing device can be, for example, a game console, a personal computer, a tablet computer, a smart phone, or other types of processing devices. The signal connection can be, for example, a Universal Serial Bus (USB) connection, a Wi-Fi connection, a Bluetooth or Bluetooth Low Energy (BLE) connection, an Ethernet connection, a cable connection, a DSL connection, a cellular connection (e.g., 3G, LTE / 4G, or 5G), etc., or a combination thereof. Additionally, the external processing device can communicate with one or more other external processing devices via a network, which can be or include, for example, a Local Area Network (LAN), a Wide Area Network (WAN), an intranet, a Metropolitan Area Network (MAN), the global Internet, or a combination thereof.

[0039] A display component, an optical device, a sensor, a processor, etc. can be installed in the head-mounted device. In the example of augmented reality or virtual reality glasses, the display component is designed to, for example, achieve the function of virtual reality glasses by projecting light into the user's eyes, and to, for example, achieve the function of augmented reality glasses by projecting light into the user's eyes and overlaying an image on the user's view of the real-world environment. The head-mounted device can also include an ambient light sensor, and can also include an electronic circuit system to control at least some of the above components and perform associated data processing functions. The electronic circuit system can include, for example, one or more processors and one or more memories.

[0040] Please refer to Figures 1 to 3 , Figure 1 which is a schematic structural diagram of the head-mounted device 5 provided by an embodiment of this application, Figure 2 is Figure 1 a schematic structural diagram of the wearing bracket 10 in Figure 3 is Figure 1 a schematic structural diagram of the display module 20 in

[0041] As Figure 1 shown, the head-mounted device 5 provided by the embodiment of the present application may include: a wearing bracket 10 and a display module 20. Among them, the wearing bracket 10 can be worn on the user's head, the display module 20 can be arranged on the wearing bracket 10, and the display module 20 can be used to present an augmented reality or virtual reality environment in front of the user's eyes. Of course, the display module 20 can also be used to implement other functions required by the head-mounted device 5, which is not limited in this embodiment.

[0042] The wearing bracket 10 can be used to carry the display module 20, so that the user can wear the display module 20 on the head through the wearing bracket 10 to present a virtual reality or augmented reality environment in front of the user's eyes. As Figure 2 shown, the wearing bracket 10 can be provided with a lens frame 110 and temple arms 120. The lens frame 110 can be worn above the user's nose, that is, in front of the user's eyes. The temple arms 120 can be arranged on opposite sides of the lens frame 110, and the temple arms 120 can be worn on the user's ears. In this way, the lens frame 110 and the temple arms 120 cooperate to realize the wearing function of the wearing bracket 10, so that the user can wear the display module 20 on the head through the wearing bracket 10 for use. Among them, the lens frame 110 and the temple arms 120 can be fixedly connected by means such as snap connection, welding and bonding to prevent the temple arms 120 from moving relative to the lens frame 110, resulting in interference between the display module 20 and the wearing bracket 10. Of course, the lens frame 110 and the temple arms 120 can also be integrally formed by processes such as stamping, injection molding and thermoforming to improve the structural strength of the two.

[0043] Further, the lens frame 110 can also be used to install corresponding functional lenses, and the temple arms 120 can also be used to connect to the display module 20. Among them, the lens 110 can be used to install functional lenses such as plano lenses, anti-glare lenses, colored lenses and myopia lenses, so as to facilitate the use of users with special needs. The temple arms 120 and the display module 20 can be detachably connected by means such as magnetic attraction, snap connection and interference fit, so that the user can replace the wearing bracket 10 or the display module 20 with different functions or styles according to needs. In some embodiments, the lens frame 110 can also be only used to connect the temple arms 120 without installing corresponding functional lenses. The temple arms 120 and the display module 20 can also be fixedly connected by means such as welding, snap connection and bonding. In addition, the specific structures of the lens frame 110 and the temple arms 120 can refer to the prior art, which will not be elaborated in this embodiment.

[0044] The display module 20 can be connected to the temple arms 120, and a part of the display module 20 can be arranged opposite to the lens frame 110, so as to facilitate the display module 20 to present a virtual reality or augmented reality environment in front of the user's eyes. AsFigure 3 As shown, the display module 20 may be provided with a lens assembly 200 and a host 300. The lens assembly 200 may be connected to the host 300, and the lens assembly 200 may present a virtual reality or augmented reality environment under the control of the host 300. In this embodiment, the display module 20 may specifically be a near-eye display device, which can be used independently or can be externally mounted on the temple 120 of the wearing bracket 10 for use. Moreover, the wearing bracket 10 and the display module 20 can jointly form a split-type head-mounted device 5 for users in need. In some embodiments, the display module 20 can also implement other functions besides the virtual reality or augmented reality environment, such as shooting, lighting, and audio playback, etc., to improve the functional diversity of the head-mounted device 5.

[0045] Please refer to Figures 4 to 5 , Figure 4 is Figure 3 a schematic structural diagram of the lens assembly 200 in Figure 4 and FIG. 5 is a schematic stacked structure diagram of the display lens 210 in

[0046] The lens assembly 200 can be connected to the host 300 and can present the function of a virtual reality or augmented reality environment under the control of the host 300. As Figure 4 shown, the lens assembly 200 may be provided with a display lens 210 and a frame 220. The display lens 210 may be disposed on the frame 220, the frame 220 may be connected to the host 300, and the display lens 210 may implement the function of virtual reality or augmented reality under the control of the host 300. Among them, the frame 220 may be arranged in a ring shape, and the display lens 210 may be disposed in the space surrounded by the frame 220 and fixedly connected to the frame 220. For example, the display lens 210 and the frame 220 may be bonded by dispensing to fix the display lens 210 on the frame 220. Of course, in addition to bonding, the display lens 210 can also be fixed on the frame 220 by means such as snap connection or interference fit, and this embodiment does not limit this.

[0047] The display lens 210 may be disposed on the frame 220, and when the user wears the head-mounted device 5, the display lens 210 may be located in front of the user's eyes to implement the function of virtual reality or augmented reality under the control of the host 300. As Figure 5As shown in the figure, the display lens 210 may be provided with a waveguide sheet 211, a protective sheet 212, an explosion-proof film 213, a functional film 214, and a filter 215. The waveguide sheet 211 may be used to conduct the light emitted by the host 300 to the user's eyes and form an image on the retina, so as to realize the virtual reality or augmented reality function of the display module 20. The protective sheet 212 may be disposed on opposite sides of the waveguide sheet 211, and it may be used to protect the waveguide sheet 211. The explosion-proof film 213 may be disposed on the side of the protective sheet 212 facing away from the waveguide sheet 211, and it may be used to prevent the protective sheet 212 from bursting. The functional film 214 may be disposed on the side of the explosion-proof film 213 facing away from the protective sheet 212, and it may be used for color change. The filter 215 may be disposed on the side of the functional module 214 facing away from the explosion-proof film 213, and it may be used to filter out stray light. In some embodiments, when the display module 20 does not need to implement the virtual reality or augmented reality function, the display lens 210 may also be an ordinary functional lens.

[0048] The waveguide sheet 211 may be provided with a grating structure 2111 and a waveguide glass 2112. The grating structure 2111 may be disposed on the waveguide glass 2112, and it may be used to couple in the light emitted by the host 300 and couple out the light to the user's retina for imaging, so as to realize the virtual reality or augmented reality function of the display lens 210. Among them, the grating structure 2111 may be a nanostructure, and it may be processed and formed on the waveguide glass 2112 by nanoimprinting technology. The waveguide glass 2112 may be a glass substrate with a high refractive index, and the waveguide glass 2112 may have outer surfaces 2101 and inner surfaces 2102 arranged opposite to each other, and the grating structure 2111 may be formed on the outer surface 2101 of the waveguide glass 2112. In this embodiment, the aforementioned outer surface 2101 may be the side of the waveguide glass 2112 facing away from the user's eyes when the user wears the display module 20 on the head, and the inner surface 2102 may be the side of the waveguide glass 2112 close to the user's eyes. In addition, the specific optical principle of the waveguide sheet 211 may refer to the prior art, and this embodiment will not be elaborated here.

[0049] The protective sheet 212 can be disposed on opposite sides of the optical waveguide sheet 211, and it can be used to protect the grating structure 2111 and the optical waveguide glass 2112, reducing the probability of damage to the optical waveguide sheet 211 caused by external force impact. The protective sheet 212 can be provided with a first protective sheet 2121 and a second protective sheet 2122. The first protective sheet 2121 can be disposed on the outer surface 2101 of the optical waveguide glass 2112, and the second protective sheet 2122 can be disposed on the inner surface 2102 of the optical waveguide glass 2112. In this way, the first protective sheet 2121 and the second protective sheet 2122 can sandwich the optical waveguide sheet 211 therebetween to protect the optical waveguide sheet 211. Among them, the first protective sheet 2121 and the second protective sheet 2122 can be glasses with relatively high structural strength to improve the impact resistance of the protective sheet 212. For example, the first protective sheet 2121 and the second protective sheet 2122 can be Corning glass. Compared with ordinary tempered glass, Corning glass has high durability and scratch resistance, and can withstand strong extrusion and repeated touching, providing sufficient impact resistance for the first protective sheet 2121 and the second protective sheet 2122.

[0050] If the light emitted by the host 300 is to achieve total internal reflection on the optical waveguide sheet 211 for imaging, it is necessary that the optical refractive index of another medium on the surface of the optical waveguide sheet 211, that is, the outer surface 2101 and the inner surface 2102, is low enough. Currently, the medium with a relatively low and appropriate refractive index is air. Therefore, there is also a need for an interval setting between the optical waveguide sheet 211 and the protective sheet 212 to form an air layer between the optical waveguide sheet 211 and the protective sheet 212, so that there is an obvious refractive index difference at the contact surface of the two media, thereby achieving the purpose of total internal reflection.

[0051] In order to enable an interval setting between the optical waveguide sheet 211 and the protective sheet 212, a first frame adhesive 2161 can be provided between the first protective sheet 2121 and the optical waveguide glass 2112. While bonding the first protective sheet 2121 and the optical waveguide glass 2112, the thickness of the first frame adhesive 2161 is used to achieve the interval setting between the first protective sheet 2121 and the optical waveguide glass 2112, thereby forming an air layer between the first protective sheet 2121 and the optical waveguide glass 2112. Correspondingly, a second frame adhesive 2162 can also be provided between the second protective sheet 2121 and the optical waveguide glass 2112. While bonding the second protective sheet 2122 and the optical waveguide glass 2112, the thickness of the second frame adhesive 2162 is used to achieve the interval setting between the second protective sheet 2122 and the optical waveguide glass 2112, thereby forming an air layer between the second protective sheet 2122 and the optical waveguide glass 2112. In this way, not only can total internal reflection of the optical waveguide sheet 211 be achieved, but also the grating structure 2111 can be protected by the interval between the first protective sheet 2121 and the optical waveguide glass 2112, reducing the probability of interference between the first protective sheet 2121 and the grating structure 2111 when the first protective sheet 2121 is impacted by an external force. In this embodiment, the first frame adhesive 2161 and the second frame adhesive 2162 can be provided along the edge of the optical waveguide sheet 211, and the first frame adhesive 2161 and the second frame adhesive 2162 can specifically be optical adhesives to ensure that the display lens 210 has a sufficient visible range and light transmittance.

[0052] The explosion-proof film 213 can be provided on the side of the protective sheet 212 facing away from the optical waveguide sheet 211, and it can be used to prevent the protective sheet 212 from bursting. The explosion-proof film 213 can be provided with a first explosion-proof film 2131 and a second explosion-proof film 2132. The first explosion-proof film 2131 can be provided on the side of the first protective sheet 2121 facing away from the optical waveguide sheet 211, and the second explosion-proof film 2132 can be provided on the side of the second protective sheet 2122 facing away from the optical waveguide sheet 211. In this way, the first explosion-proof film 2131 and the second explosion-proof film 2132 can sandwich the first protective sheet 2121 and the second protective sheet 2122 in the middle to avoid the problem that glass fragments generated by the bursting of the first protective sheet 2121 and the second protective sheet 2122 cause harm to users. Among them, the first explosion-proof film 2131 can be adhesively fixed to the first protective sheet 2121 through an optical adhesive, and the second explosion-proof film 2132 can also be adhesively fixed to the second protective sheet 2122 through an optical adhesive to ensure the light transmission performance of the display lens 210.

[0053] In some embodiments, in order to reduce the stacked thickness and weight of the display lens 210, the second explosion-proof film 2132 may be attached only to the side of the second protective sheet 2122 facing away from the optical waveguide sheet 211, that is, the side of the second protective sheet 2122 close to the user's eyes, while the first explosion-proof film 2131 is cancelled. In some embodiments, when a functional lens is installed on the frame 110 of the wearing bracket 10, both the first explosion-proof film 2131 and the second explosion-proof film 2132 may be cancelled, so as to block the glass fragments generated when the protective sheet 212 explodes through the functional lens on the frame 110.

[0054] The functional film 214 may be disposed on the side of the first explosion-proof film 2131 facing away from the first protective sheet 2121, and it can be used for color change to improve the appearance expressiveness of the head-mounted device 5. For example, the functional film 214 may be a photochromic film, and the photochromic film may be made of a photochromic material, so that the photochromic device can change color after being excited by light of a certain wavelength. Alternatively, the functional film 214 may also be an electrochromic film, and the electrochromic film may be made of an electrochromic material. The electrochromic material may be one of inorganic electrochromic materials and organic electrochromic materials. The inorganic electrochromic material may be tungsten trioxide. The organic electrochromic material may be one of polythiophene and its derivatives, viologens, tetrathiafulvalene, metal phthalocyanine compounds, etc. In this way, the functional film 214 can achieve the color change function to improve the appearance expressiveness of the head-mounted device 5. The photochromic material and the electrochromic material can be made by using the existing technical solutions within the scope understood by those skilled in the art, and will not be elaborated here. In some embodiments, in order to reduce the stacked thickness and weight of the display lens 210, the display lens 210 may also not be provided with the functional film 214.

[0055] The filter 215 may be disposed on the side of the functional film 214 facing away from the first explosion-proof film 2131, and it can be used to filter stray light and at the same time bring the effect of sunglasses to the display lens 210. Among them, the filter 215 may specifically be a polarizing plate, that is, polarizing glass, so that the filter 215 can not only filter stray light, but also have sufficient structural strength and scratch and impact resistance to further protect the stacked structure of the entire display lens 210. At the same time, the filter 215 can also be adhesively fixed to the functional film 214 through an optical adhesive to ensure the light transmittance of the display lens 210. In this way, the display lens 210 can not only use the optical waveguide sheet 211 to form an image in the user's eyes to realize the virtual reality or augmented reality function, but also use the filter 215 to filter stray light to bring the effect of sunglasses to the display lens 210. In some embodiments, in order to reduce the stacked thickness and weight of the display lens 210, the display lens 210 may also not be provided with the filter 215.

[0056] Please refer toFigure 4 Refer to Figures 6 to 8 , Figure 6 which Figure 4 is a schematic structural diagram of the middle frame 220 in Figure 7 and Figure 6 is a schematic structural diagram of the middle frame 220 from another perspective in Figure 8 and Figure 7 is a partial enlarged view of part A in

[0057] The frame 220 can be used to mount the display lens 210, so that the display lens 210 can be assembled to the host 300 through the frame 220. As shown in Figure 4 and Figure 6 , the frame 220 can surround to form a receiving space 2201 for receiving the display lens 210, and the shape of the receiving space 2201 can be adapted to the display lens 210. Among them, the frame 220 can also be provided with an annular flange 221 and a connecting member 222, and both the annular flange 221 and the connecting member 222 can be arranged in the receiving space 2201. The annular flange 221 can be used to carry the display lens 210, so as to facilitate the assembly of the display lens 210 and the frame 220. The connecting member 222 can be connected to the annular flange 221, and the connecting member 222 can be used to detachably connect to the host 300, so that the frame 220 can be disassembled and assembled with the host 300, so as to facilitate the user to replace the lens assembly 200 or the host 300 according to needs. In this embodiment, the material of the frame 220 can be plastic, and both the annular flange 221 and the connecting member 222 can be part of the frame 220, and the three can be integrally formed by an injection molding process. In some embodiments, the material of the frame 220 can also be not limited to plastic, and the annular flange 221 and the connecting member 222 can also be components independent of the frame 220, as long as the annular flange 221 and the connecting member 222 can be fixedly connected to the frame 220.

[0058] The annular convex edge 221 can be disposed on one side of the frame 220 within the accommodation space 2201, and the annular convex edge 221 can protrude into the accommodation space 2201, such that when the display lens 210 is assembled with the frame 220, it can be first placed on the annular convex edge 221 within the accommodation space 2201 for positioning, and then fixedly connected to the frame 220 by corresponding means, so as to improve the assembly convenience of the display lens 210 and the frame 220. For example, after the display lens 210 is placed on the annular convex edge 221, glue can be applied between the display lens 210 and the frame 220 to bond the display lens 210 and the frame 220, realizing their fixed connection. In addition, before the display lens 210 is placed on the annular convex edge 221, glue can also be applied to the annular convex edge 221 first to bond the display lens 210 and the annular convex edge 221, improving the connection firmness between the display lens 210 and the frame 220. In this embodiment, on the side of the display lens 210 close to the user's eye, that is, the second explosion-proof film 2132 can be disposed on the annular convex edge 221 and fixedly bonded to the annular convex edge 221, and the second explosion-proof film 2132 and the annular convex edge 221 can also be fixedly bonded through an optical adhesive. In some embodiments, the frame 220 can also be disposed only around the edge of the display lens 210 without providing the annular convex edge 221, and the display lens 210 and the frame 220 can also be connected by one or a combination of fixing means such as snap connection, welding, and interference fit.

[0059] The connecting member 222 can be connected to the annular convex edge 221, and a partial region of the connecting member 222 can also protrude outside the accommodation space 2201, so as to facilitate the detachable connection of the connecting member 222 with the host 300. As Figures 7 to 8 shown, the connecting member 222 can be provided with a main body portion 2221, an extension portion 2222, and a engaging portion 2223. The main body portion 2221 can be disposed within the accommodation space 2201 and connected to the annular convex edge 221. The extension portion 2222 can be disposed on a side of the main body portion 2221 facing away from the display lens 210, and the extension portion 2222 can protrude outside the accommodation space 2201. The engaging portion 2223 can be disposed on the extension portion 2222, and it can be used for the detachable connection with the host 300. In this embodiment, after the frame 220 is connected to the host 300, the orthographic projection of the connecting member 222 on the host 300 can surround the light outlet 301 of the host 300 ( Figure 9The setting shown in the figure is to prevent the connecting member 222 from blocking the light outlet 301 after being connected to the host 300. In some embodiments, the connecting member 222 may also be provided with only the engaging portion 2223, that is, the engaging portion 2223 may be the entire connecting member 222, while the main body portion 2221 and the extending portion 2222 may be part of the frame 220, and both can be used to cooperate with the engaging portion 2223 (connecting member 222) and the host 300 to achieve a detachable connection.

[0060] The main body portion 2221 may be flush with the annular flange 221. That is, the side of the main body portion 2221 close to the display lens 210 may be flush with the side of the annular flange 221 close to the display lens 210, and the side of the main body portion 2221 facing away from the display lens 210 may also be flush with the side of the annular flange 221 facing away from the display lens 210. In this way, when the display lens 210 and the annular flange 221 are positioned and assembled, glue can also be applied to the side of the main body portion 2221 close to the display lens 210 to bond the second explosion-proof film 2132 and the main body portion 2221, improving the connection firmness between the display lens 210 and the frame 220. Among them, the main body portion 2221 may also be circular in shape, so that the orthographic projection of the main body portion 2221 on the host 300 can be arranged around the light outlet 301 of the host 300.

[0061] The extending portion 2222 may be provided on the side of the main body portion 2221 facing away from the display lens 210, and the extending portion 2222 may protrude outside the accommodation space 2201. In this way, the extending portion 2222 can be configured to be inserted into the host 300, so that the engaging portion 2223 on the extending portion 2222 can be detachably connected to the host 300. Among them, the extending portion 2222 may also be circular in shape, and the extending portion 2222 may also be formed with a receiving space 2202 around it, so that the orthographic projection of the extending portion 2222 on the host 300 can also be arranged around the light outlet 301 of the host 300.

[0062] The engaging portion 2223 can be disposed on the extending portion 2222, and the engaging portion 2223 can be located on a side of the extending portion 2222 facing away from the receiving space 2202. When the extending portion 2222 is inserted into the host 300, the engaging portion 2223 can also be inserted into the host 300 along with the extending portion 2222 and be detachably connected to the host 300. Among them, after the extending portion 2222 is inserted into the host 300, it can also rotate relative to the host 300, and the engaging portion 2223 can also rotate relative to the host 300 along with the extending portion 2222 and can be engaged with the host 300 after rotation, so that the extending portion 2222 cannot exit from the host 300, thereby realizing the assembly of the frame 220 and the host 300. Correspondingly, the extending portion 2222 can also rotate in the opposite direction relative to the host 300, and the engaging portion 2223 can also rotate in the opposite direction relative to the host 300 along with the extending portion 2222 and can be disengaged from the host 300 after reverse rotation, so that the extending portion 2222 can exit from the host 300, thereby realizing the disassembly of the frame 220 and the host 300. In this way, the frame 220 can be detachably connected to the host 300 by using the connecting member 222, so that the user can replace the lens assembly 200 and the host 300 according to needs.

[0063] Further, the number of the engaging portions 2223 can be four, and the four engaging portions 2223 can be evenly distributed on a side of the extending portion 2222 facing away from the receiving space 2202. Of course, the number of the engaging portions 2223 is not limited to four, and the number can also be two, three, five or more, as long as the host 300 can be provided with mating components corresponding to the engaging portions 2223, and this embodiment does not limit this.

[0064] In some embodiments, the engaging portion 2223 can also be disposed on a side of the extending portion 2222 close to the receiving space 2202, that is, the engaging portion 2223 can also be disposed in the receiving space 2202. At this time, in order to facilitate the cooperation between the engaging portion 2223 and the host 300, the extending portion 2222 can be inserted by the host 300, so that after the host 300 is inserted into the receiving space 2202 of the extending portion 2222, it can be detachably connected to the engaging portion 2223. Among them, the specific disassembly and assembly methods of the host 300 and the engaging portion 2223 are the same as or similar to those in the foregoing embodiments, and will not be elaborated herein.

[0065] Refer to Figures 9 to 12 , Figure 9 is Figure 3 a partial cross-sectional structural schematic diagram of the display module 20 along V-V in Figure 10 is Figure 9 a structural schematic diagram of the housing 310 in Figure 11 is Figure 10 a partial enlarged view at B in Figure 12 isFigure 9 Partial enlarged view at position C in the figure.

[0066] The cooperation between the host 300 and the display lens 210 can realize the virtual reality or augmented reality function of the display module 20. As Figure 9 shown, the host 300 may be provided with a housing 310 and an optical engine 320. The housing 310 can be used to mount the optical engine 320, and the housing 310 can also be used to detachably connect to the frame 220. The optical engine 320 can be disposed within the housing 310, and the optical engine 320 can be disposed opposite to the display lens 210, so that the display lens 210 can realize the virtual reality or augmented reality function under the control of the optical engine 320. In this embodiment, in addition to being used to realize the virtual reality or augmented reality function, the host 300 can also realize the function of a headset to provide functions such as voice broadcast or music playback for the user, making the functions of the host 300 more diversified. In some embodiments, the host 300 can also be used to realize functions such as shooting and lighting, as long as the corresponding electronic devices are integrated on the host 300.

[0067] The housing 310 may be provided with a receiving groove 311 for mounting the optical engine 320, and the receiving groove 311 can also be used to mount other electronic devices required by the host 300, such as circuit boards, batteries, and speakers, etc. Among them, the receiving groove 311 can also be inserted by the extension portion 2222, so that when the frame 220 is connected to the housing 310, the engaging portion 2223 can be inserted into the receiving groove 311 along with the extension portion 2222 to be detachably connected to the housing 310. At the same time, the opening formed by the receiving groove 311 on the housing 310 can be the light outlet 301 of the host 300, and the light emitting surface 321 of the optical engine 320 can be disposed facing the light outlet 301, so that the light emitted by the optical engine 320 can irradiate outside the housing 310 through the light outlet 301. Correspondingly, after the engaging portion 2223 is inserted into the receiving groove 311 along with the extension portion 2222, the optical engine 320 can also be disposed opposite to the display lens 210 through the light outlet 301, so that the light emitted by the optical engine 320 can irradiate on the display lens 210, and then be coupled by the display lens 210 into the user's eyes for imaging, realizing the virtual reality or augmented reality function of the display module 20. Among them, the specific structure and working principle of the optical engine 320 can refer to the prior art, and will not be elaborated in this embodiment.

[0068] As Figures 9 to 11As shown, the housing 310 may also be provided with a fitting 312, and the fitting 312 may be disposed on the inner sidewall of the receiving groove 311. Thus, when the engaging portion 2223 is inserted into the receiving groove 311 along with the extending portion 2222, the fitting 312 can cooperate with the engaging portion 2223 to achieve a detachable connection between the frame 220 and the housing 310. Among them, the fitting 312 may be provided with a card slot 3121 for cooperating with the engaging portion 2223. When the extending portion 2222 is inserted into the receiving groove 311, the engaging portion 2223 can be inserted into the fitting 312 along the card slot 3121. When the extending portion 2222 rotates relative to the housing 310, the engaging portion 2223 can also rotate relative to the fitting 312 along the card slot 3121, and can be engaged with the inner wall of the card slot 3121 after rotation, that is, the fitting 312. Correspondingly, the engaging portion 2223 can also rotate in the reverse direction to release the engaged state with the fitting 312, thereby achieving a detachable connection between the frame 220 and the housing 310. In this embodiment, the number of the card slots 3121 may also be four, and the four card slots 3121 may be evenly distributed on the inner sidewall of the receiving groove 311 to be adapted to the four engaging portions 2223 on the extending portion 2222. In some embodiments, the number of the card slots 3121 may not be limited to four, and the specific number can be adjusted according to the number of the engaging portions 2223, as long as the engaging portion 2223 can cooperate with the card slot 3121 to achieve a detachable connection between the frame 220 and the housing 310.

[0069] Specifically, the card slot 3121 may be provided with a first card slot 3121a and a second card slot 3121b that are connected and communicate with each other, and the first card slot 3121 may also communicate with the outside of the receiving groove 311. Thus, when the extending portion 2222 is inserted into the receiving groove 311, the engaging portion 2223 can be inserted into the fitting 312 along the first card slot 3121a. When the extending portion 2222 rotates relative to the housing 310, the engaging portion 2223 can rotate relative to the fitting 312 along the second card slot 3121b, and can be engaged with the inner wall of the second card slot 3121b after rotation, that is, engaged with the fitting 312, so that the extending portion 2222 cannot withdraw from the receiving groove 311, realizing the assembly of the frame 220 and the housing 310. When the extending portion 2222 rotates in the reverse direction relative to the housing 310, the engaging portion 2223 can rotate in the reverse direction along the second card slot 3121b and retreat into the first card slot 3121a, so that when the extending portion 2222 withdraws from the receiving groove 311, the engaging portion 2223 can also withdraw from the fitting 312 along the first card slot 3121a, realizing the disassembly of the frame 220 and the housing 310. In this embodiment, the fitting 312 may be a part of the inner sidewall of the receiving groove 311, that is, the first card slot 3121a and the second card slot 3121b may be opened on the inner sidewall of the receiving groove 311.

[0070] In some embodiments, when the engaging portion 2223 is disposed in the receiving space 2202 such that the housing 310 can be inserted into the receiving space 2202 and detachably connected to the engaging portion 2223, the fitting member 312 can be disposed on the outer surface of a partial area of the housing 310 inserted into the receiving space 2202. That is, a first card slot 3121a and a second card slot 3121b can be formed on the outer surface of the partial area of the housing 310 inserted into the receiving space 2202. After the housing 310 is inserted into the receiving space 2202, the engaging portion 2223 located in the receiving space 2202 can still be inserted into the fitting member 312 along the first card slot 3121a and can be rotationally engaged with the fitting member 312 after rotating along the second card slot 3121b. Correspondingly, the engaging portion 2223 can still rotate reversely along the second card slot 3121b and retract into the first card slot 3121a to release the engaged state between the engaging portion 2223 and the fitting member 312, thereby realizing the detachable connection between the frame 220 and the housing 310.

[0071] In some embodiments, the connecting member 222 and the fitting member 312 can also be interchanged, that is, the frame 220 can be provided with the fitting member 312, and the housing 310 can be disposed on the connecting member 222. For example, the fitting member 312 can be disposed on the side of the extending portion 2222 away from the receiving space 2202, and the fitting member 312 can still be provided with the first card slot 3121a and the second card slot 3121b. The connecting member 222 can be disposed on the inner sidewall of the receiving groove 311, and the connecting member 222 can still be provided with the engaging portion 2223. Thus, when the extending portion 2222 is inserted into the receiving groove 311, the engaging portion 2223 can still be inserted into the fitting member 312 along the first card slot 3121a and can rotate relative to the fitting member 312 along the second card slot 3121b, so as to be rotationally engaged with the fitting member 312. Correspondingly, the engaging portion 2223 can still retract into the first card slot 3121a along the second card slot 3121b to release the engaged state between the engaging portion 2223 and the fitting member 312, thereby realizing the detachable connection between the frame 220 and the housing 310.

[0072] Since the engaging portion 2223 can be rotated in the reverse direction to release the engagement state between the engaging portion 2223 and the mating member 213, in order to prevent the engaging portion 2223 from rotating in the reverse direction under an external force, which may cause the disengagement of the engaging portion 2223 and the mating member 213 and affect the normal use of the display module 20. The display module 20 may further be provided with an elastic member 400, and the elastic member 400 may be disposed between the lens assembly 200 and the host 300. Wherein, after the engaging portion 2223 is inserted into the mating member 312 along the first card slot 3121a, the elastic member 400 can undergo elastic deformation and abut against the lens assembly 200 and the host 300 respectively, so as to provide an elastic force acting on the engaging portion 2223, such that after the engaging portion 2223 rotates relative to the mating member 312 along the second card slot 3121b, it can abut against the inner wall of the second card slot 3121b, that is, the mating member 312 under the elastic force of the elastic member 400. Thus, the elastic force of the elastic member 400 can be used to limit the rotation of the engaging portion 2223 relative to the mating member 312, reducing the probability of disengagement of the engaging portion 2223 and the mating member 312 under an external force.

[0073] As Figure 9 and Figure 12 shown, the elastic member 400 may be an elastic seal, and the elastic member 400 may be disposed between the display lens 210 and the optical engine 320. It can not only be used to provide an elastic force to limit the rotation of the engaging portion 2223 relative to the mating member 312, but also be used to improve the dust-proof performance of the display module 20, preventing dust from entering between the display lens 210 and the optical engine 320 through the gap between the frame 220 and the housing 310 and affecting the imaging effect of the display module 20. Wherein, the elastic member 400 may be disposed on the side of the optical engine 320 close to the display lens 210, that is, close to the light outlet 301, and it may be fixedly connected to the optical engine 320 by means of dispensing. At the same time, the orthographic projection of the elastic member 400 on the optical engine 320 may also be arranged around the light-emitting surface 321 of the optical engine 320 to prevent the elastic member 400 from blocking the light emitted by the optical engine 320. In addition, in order to enable the elastic member 400 to undergo elastic deformation after the engaging portion 2223 is inserted into the mating member 312, the side of the elastic member 400 facing away from the optical engine 320 may also protrude outside the receiving groove 311. In this embodiment, the material of the elastic member 400 may be made of elastic materials such as foam, rubber, and silica gel, so that the elastic member 400 can not only undergo elastic deformation but also have better dust-proof performance.

[0074] Thus, when the engaging portion 2223 is inserted into the mating member 312 along the first card slot 3121a, the display lens 210 on the frame 220 can contact the side of the elastic member 400 away from the optical engine 320. As the insertion depth of the engaging portion 2223 increases, the display lens 210 can further compress the elastic member 400, causing the elastic member 400 to undergo elastic deformation and abut against the display lens 210 and the optical engine 320 respectively, thereby providing a reverse elastic force acting on the display lens 210, and finally acting on the engaging portion 2223 through the display lens 210. When the engaging portion 2223 rotates relative to the mating member 312 along the second card slot 3121b, the engaging portion 2223 can abut against the inner wall of the second card slot 3121b under the elastic force of the elastic member 400, thereby restricting the rotation of the engaging portion 2223 relative to the mating member 312 and reducing the probability of the engaging portion 2223 and the mating member 312 becoming disengaged due to external forces after being clamped. At the same time, when the engaging portion 2223 abuts against the inner wall of the second card slot 3121b, the elastic member 400 can still be in an elastically deformed state, which can not only improve the firmness of the abutment between the engaging portion 2223 and the second card slot 3121b, but also enhance the dust-proof performance between the display lens 210 and the optical engine 320 by using the abutting force (elastic force) generated by the deformation of the elastic member 400. In this embodiment, the side of the elastic member 400 away from the optical engine 320 can specifically abut against the second explosion-proof film 2132 of the display lens 210 (as shown in FIG. 12).

[0075] Please refer to Figures 13 to 15 , Figure 13 is Figure 9 a schematic diagram of the state in which the engaging portion 2223 is inserted into the mating member 312 in Figure 14 is Figure 13 another schematic diagram of the state in which the engaging portion 2223 is inserted into the mating member 312 in Figure 15 is Figure 14 yet another schematic diagram of the state in which the engaging portion 2223 is inserted into the mating member 312 in

[0076] The disassembly and assembly process of the frame 220 and the housing 310 will be described in detail below. As Figure 13As shown, when the user needs to assemble the frame 220 and the housing 310, the user can align the engaging portion 2223 on the extension portion 2222 with the first card slot 3121a of the fitting 312, and insert the extension portion 2222 into the receiving slot 311, so that the engaging portion 2223 can be inserted into the fitting 312 along the first card slot 3121a as the extension portion 2222 is inserted. During this process, the display lens 210 will abut against the elastic member 400 on the optical engine 320, that is, the elastic seal member, and the elastic member 400 provides an elastic force that can act on the engaging portion 2223 through the display lens 210, so that the engaging portion 2223 has a tendency to withdraw from the first card slot 3121a.

[0077] As Figures 14 to 15 shown, after the engaging portion 2223 is inserted into the first card slot 3121a, the user can rotate the frame 220, so that the extension portion 2222 rotates relative to the housing 310, and then drives the engaging portion 2223 to rotate relative to the fitting 312 along the second card slot 3121b through the extension portion 2222. When the engaging portion 2223 rotates into the second card slot 3121b, the engaging portion 2223 can abut against the inner wall of the second card slot 3121b under the elastic force of the elastic member 400, so as to use the elastic force provided by the elastic member 400 to limit the reverse rotation of the engaging portion 2223, and realize the fixed assembly of the frame 220 and the housing 310.

[0078] Correspondingly, when the user needs to disassemble the frame 220 and the housing 310, the user can rotate the frame 220 reversely against the elastic force of the elastic member 400, and retract the engaging portion 2223 from the second card slot 3121b into the first card slot 3121a, so as to release the clamping state between the engaging portion 2223 and the fitting 312, so that the engaging portion 2223 can withdraw from the fitting 312 along the first card slot 3121a, and realize the disassembly of the frame 220 and the housing 310. Through the above method, the frame 220 and the housing 310 can be detachably connected, so that the user can replace the lens assembly 200 and the host 300 according to needs.

[0079] Please refer to Figures 16 to 17 , Figure 16 is Figure 15 a schematic diagram of the state of the engaging portion 2223 inserted into the fitting 312 in one embodiment in Figure 17 is Figure 15 a schematic diagram of the state of the engaging portion 2223 inserted into the fitting 312 in another embodiment in

[0080] In some embodiments, in order to further improve the firmness of the assembly of the frame 220 and the housing 310, the connecting member 222 can also be provided with a limiting portion 2224, and the fitting 312 can also be provided with a limiting groove 3122. As Figure 16As shown, the limiting portion 2224 can be provided on the engaging portion 2223, and the limiting portion 2224 can be disposed opposite to the inner sidewall of the second card slot 3121b. The limiting groove 3122 can communicate with the second card slot 3121b, and the limiting groove 3122 can be provided on the inner sidewall of the second card slot 3121b. In this way, when the engaging portion 2223 rotates relative to the fitting member 312 along the second card slot 3121b and abuts against the inner wall of the second card slot 3121b under the elastic force of the elastic member 400, the limiting portion 2224 can be disposed in the limiting groove 3122 and engaged with the inner wall of the limiting groove 3122, thereby further restricting the reverse rotation of the engaging portion 2223 relative to the fitting member 312 and improving the assembly firmness of the frame 220 and the housing 310. Correspondingly, when it is necessary to disassemble the frame 220 and the housing 310, the user can first apply a force to the frame 220 to compress the elastic member 400, so that the limiting portion 2224 exits from the limiting groove 3122, and then rotate the frame 220 to make the engaging portion 2223 retract into the first card slot 3121a, releasing the engaged state between the engaging portion 2223 and the fitting member 312, and realizing the disassembly of the frame 220 and the housing 310.

[0081] In some embodiments, the setting positions of the limiting portion 2224 and the limiting groove 3122 can also be interchanged, that is, a limiting groove 3122 can be provided on the side of the engaging portion 2223 opposite to the inner sidewall of the second card slot 3121b, and a limiting portion 2224 can be provided on the side of the second card slot 3121b corresponding to the limiting groove 3122. In this way, when the engaging portion 2223 abuts against the inner wall of the second card slot 3121b, the limiting portion 2224 can still be disposed in the limiting groove 3122 to restrict the reverse rotation of the engaging portion 2223 and improve the assembly firmness of the frame 220 and the housing 310.

[0082] In some embodiments, the elastic member 400 may not be limited to an elastic seal, and it may also be only used to provide an elastic force to realize the abutment between the engaging portion 2223 and the fitting member 312 without having a dust-proof performance. As Figure 17 shown, the elastic member 400 can also be an elastic pad made of an elastic material such as soft plastic, rubber or silica gel, and the elastic member 400 can be provided in the second card slot 3121b. When the engaging portion 2223 is inserted into the fitting member 312 along the first card slot 3121a, the engaging portion 2223 can abut against the elastic member 400 in the second card slot 3121b, causing the elastic member 400 to undergo elastic deformation. When the engaging portion 2223 rotates relative to the fitting member 312 along the second card slot 3121b, the engaging portion 2223 can abut against the inner wall of the second card slot 3121b under the elastic force of the elastic member 400.

[0083] In some embodiments, the elastic member 400 can also be a metal shrapnel or a spring, and the elastic member 400 can also be disposed in the second card slot 3121b. It only needs that after the engaging portion 2223 is inserted into the mating member 312, the elastic member 400 can abut against the engaging portion 2223 and undergo elastic deformation. In addition, in some embodiments, the elastic member 400 is not limited to being disposed in the second card slot 3121b. It can also be disposed at other positions of the frame 220 or the housing 310. It only needs that after the engaging portion 2223 is inserted into the mating member 312, the elastic member 400 can abut against the frame 220 and the housing 310 and undergo elastic deformation to provide an elastic force acting on the frame 220 or the housing 310.

[0084] Please refer to Figure 18 , Figure 18 is Figure 15 a schematic diagram of the state of the engaging portion 2223 inserted into the mating member 312 in another embodiment.

[0085] In some embodiments, after the connecting member 222 is inserted into the mating member 312, it can also be directly detachably connected to the mating member 312 without rotation. As Figure 18 shown, the connecting member 222 can have an engaging portion 2223, and a groove G can be provided on the engaging portion 2223. The inner sidewall of the groove G can have an inclined surface. The mating member 312 can be provided with a first card slot 3121a, a protrusion H, and a spring T. Among them, an avoidance groove F can be formed on the inner sidewall of the first card slot 3121a. The protrusion H and the spring T can be disposed in the avoidance groove F. One end of the spring T can be connected to the protrusion H, and the other end can be connected to the bottom wall of the avoidance groove F. The protrusion H can protrude out of the avoidance groove F under the action of the spring T. The opposite sides of the protrusion H can also have inclined surfaces.

[0086] When the engaging portion 2223 is inserted into the first card slot 3121a, the engaging portion 2223 can come into contact with the inclined surface on one side of the convex block H and push the convex block H through this inclined surface, so that the convex block H compresses the spring T and retracts into the avoidance groove F, thereby providing an avoidance space for the engaging portion 2223 to be inserted into the first card slot 3121a. After the connecting frame 22 is inserted to a predetermined position, the convex block H can rebound into the groove G on the connecting member 222 under the action of the spring T to be engaged with the connecting member 222. In addition, in order to improve the engagement strength, the spring T can always be in a compressed state to press against the convex block H and the connecting member 222. When it is necessary to disassemble the connecting member 222 and the mating member 312, the user can pull the connecting member 222 outward against the elastic force of the spring T, so that the inclined surface on the other opposite side of the convex block H abuts against the inclined surface in the groove G, thereby pushing the convex block H to compress the spring T and retract into the avoidance groove F, providing an avoidance space for the connecting member 222 to withdraw from the first card slot 3121a. In this way, even if the connecting member 222 does not rotate after being inserted into the mating member 312, a detachable connection can still be achieved.

[0087] In some embodiments, a rubber sleeve can also be provided on the outer surface of the engaging portion 2223, so that after the engaging portion 2223 is inserted into the first card slot 3121a, the rubber sleeve can interfere with the engaging portion 2223 and the inner wall of the first card slot 3121a to generate frictional force to restrict the engaging portion 2223 from withdrawing from the first card slot 3121a. Of course, the user can overcome this frictional force to insert the engaging portion 2223 into the first card slot 3121a or pull the engaging portion 2223 out of the first card slot 3121a.

[0088] Please refer to Figures 19 to 21 , Figure 19 which is a schematic structural diagram of the dust cover 30 provided by the embodiment of the present application, Figure 20 which is a schematic structural diagram of the connection between the earhook 40 and the host 300 provided by the embodiment of the present application, Figure 21 is Figure 20 the schematic cross-sectional structure diagram of the dust cover 30, the earhook 40 and the housing 310 along Ⅳ-Ⅳ in

[0089] In some embodiments, since the optical machine 320 in the accommodation groove 311 will be directly exposed to the external environment after the frame 220 and the housing 310 are disassembled, in order to prevent dust from entering the accommodation groove 311 and affecting the imaging effect of the optical machine 320 during subsequent use, the head-mounted device 5 provided by the embodiment of the present application can also be provided with a dust cover 30. As Figure 19As shown, the dust cover 30 can be provided with a cover body 31 and the connecting member 222 in the foregoing embodiment, and the connecting member 222 can be disposed on the cover body 31. Among them, when the frame 220 and the housing 310 are disassembled, the dust cover 30 can be detachably connected to the housing 310 by using the connecting member 222, and the specific disassembly and assembly process is the same as or similar to that of the above embodiment. The difference from the above embodiment is that when the engaging portion 2223 of the connecting member 222 is inserted into the mating member 312 on the housing 310, it is the cover body 31 of the dust cover 30 that abuts against the elastic member 400, so that the elastic member 400 can be elastically deformed to provide a force to the engaging portion 2223, realizing the detachable connection between the dust cover 30 and the housing 310. In some embodiments, when the housing 310 is provided with the connecting member 222, the dust cover 30 can also be provided with the mating member 312 to be detachably connected to the connecting member 222 on the housing 310.

[0090] In some embodiments, functional devices such as a speaker can also be disposed in the host 300, so that the host 300 can also have the function of a headset. Thus, when the frame 220 and the housing 310 are disassembled and the housing 310 is connected to the dust cover 30, the host 300 can also be used as a headset. At the same time, in order to facilitate the user to wear the host 300 on the ear, the head-mounted device 5 provided in the embodiment of the present application can also be provided with an ear hook 40. As Figures 20 to 21 shown, one end of the ear hook 40 can be detachably connected to the side of the housing 310 facing away from the dust cover 30. For example, one end of the ear hook 40 can be provided with a thread 41, and the side of the housing 310 facing away from the dust cover 30 can be provided with a threaded hole 313. The end of the ear hook 40 provided with the thread 41 can be disposed in the threaded hole 313 of the housing 310 to be detachably connected to the housing 310. In the above manner, when the user disassembles the frame 220 from the housing 310, the host 300 can also be worn on the ear as a headset by using the ear hook 40, improving the functional diversity of the host 300 and enabling the head-mounted device 5 to be deformed and used in different scenarios.

[0091] In some embodiments, the ear hook 40 and the host 300 can also be detachably connected by other means. For example, the ear hook 40 and the host 300 can be detachably connected by magnetic attraction. Or, the housing 310 can have a certain deformation ability, and the ear hook 40 can be inserted into the housing 310 to cause elastic deformation of the housing 310, so as to fix the ear hook 40 on the housing 310 by using the elastic force generated by the deformation of the housing 310. When the ear hook 40 needs to be disassembled, the user can directly pull out the ear hook 40 from the housing 310 by overcoming the elastic force generated by the deformation of the housing 310. In addition, in some embodiments, the detachable connection manner between the ear hook 40 and the host 300 is not limited to the above manner, and the specific detachable manner can be set according to requirements.

[0092] Please refer to Figure 12 for reference Figures 22 to 26 , Figure 22 which is Figure 3 another partial cross-sectional structural schematic diagram of the display module 20 along V-V in Figure 23 which is Figure 22 a partial enlarged view at D in Figure 22 and Figure 24 is a structural schematic diagram of the rigid seal 500 in Figure 25 which is Figure 24 a partial enlarged view at E in Figure 26 which is Figure 24 another partial schematic diagram at E in

[0093] As described in the previous embodiment, in order to achieve total internal reflection of the optical waveguide sheet 211, an air layer is formed on the outer surface 2101 and the inner surface 2102 of the optical waveguide sheet 211, so that the protective sheet 212 is spaced apart from the optical waveguide sheet 211. As Figure 12 shown, when subsequent sealing treatment is performed on the display lens 210 and the optical engine 320, the elastic member 400 (elastic seal) will respectively abut against the second explosion-proof film 2132 of the display lens 210 and the optical engine 320.

[0094] In some embodiments, in order to reduce the stacked thickness and weight of the display lens 210, the designs of the second protective sheet 2122 and the second explosion-proof film 2132 are cancelled. At this time, if the display lens 210 and the host 320 are sealed as in the previous embodiment, the elastic member 400 will respectively abut against the optical waveguide sheet 211 and the optical engine 320, so that the seal 400 will damage the air layer formed on the inner surface 2102 of the optical waveguide sheet 211, affecting the total internal reflection of the optical waveguide sheet 211. Therefore, in order to be able to cancel the designs of the second protective sheet 2122 and the second explosion-proof film 2132 while still being able to seal the display lens 210 and the host 320, the display module 20 may further be provided with a rigid seal 500.

[0095] As Figures 22 to 24As shown, the rigid seal 500 can be disposed between the elastic member 400 and the optical waveguide sheet 211, and the rigid seal 500 can also be abutted against the elastic member 400 and the optical waveguide sheet 211 respectively, so that the elastic member 400 can undergo elastic deformation to provide an elastic force acting on the frame 220, realizing the fixed assembly of the frame 220 and the housing 310. Among them, the side of the rigid seal 500 abutting against the optical waveguide sheet 211 can have a rough surface, that is, an uneven surface. When the rigid seal 500 abuts against the optical waveguide sheet 211 under the action of the elastic member 400, a corresponding gap 501 will be formed between the optical waveguide sheet 211 and the rigid seal 500, thereby using this gap 501 to form a thin air layer between the inner surface 2102 of the optical waveguide sheet 211 and the rigid seal 500 to achieve total reflection of the optical waveguide sheet 211. In this way, not only can the second protective sheet 2122 and the second anti-explosion film 2132 be cancelled to reduce the lamination thickness and weight of the display lens 210, but also the optical waveguide sheet 211 and the optical engine 320 can be sealed without affecting the total reflection of the optical waveguide sheet 211, improving the dust-proof performance of the display module 20.

[0096] A plurality of protrusions 510 can be provided on the side of the rigid seal 500 abutting against the optical waveguide sheet 211 to form an uneven rough surface on the rigid seal 500. At the same time, in order to reduce the probability that external dust or water stains enter between the optical waveguide sheet 211 and the optical engine 320 through the gap 501, the plurality of protrusions 510 can be densely distributed on the rigid seal 500. As Figure 25 shown, the protrusion 510 can be a convex point 511, and a plurality of convex points 511 can be staggered between each other on the rigid seal 500 to extend the path of the gap 501 communicating outside the display module 20 and reduce the probability that external dust or water stains directly enter between the optical waveguide sheet 211 and the optical engine 320 through the gap 501. In addition, as Figure 26 shown, the protrusion 510 can also be an annular convex rib 512, and a plurality of annular convex ribs 512 can be arranged in a surrounding and spaced manner between each other on the rigid seal 500 to repeatedly partition the gap 501, thereby separating the gap 501 into a plurality of non-connected sub-gaps and reducing the probability that external dust or water stains directly enter between the optical waveguide sheet 211 and the optical engine 320 through the gap 501. In some embodiments, the protrusion 510 is not limited to being a convex point 511 or an annular convex rib 512, and its shape can also be set according to requirements, as long as the plurality of protrusions 510 can form a rough surface on the side of the rigid seal 500 close to the optical waveguide sheet 211.

[0097] Further, the orthographic projection of the rigid seal 500 on the optical engine 320 can also be arranged around the light-emitting surface 321 of the optical engine 320 to prevent the rigid seal 500 from blocking the light emitted by the optical engine 320. At the same time, in order to enable the elastic member 400 to undergo elastic deformation, the side of the rigid seal 500 facing away from the elastic member 400 can also protrude outside the receiving groove 311, so that when the frame 220 is assembled to the housing 310, the display lens 210 can compress the elastic member 400 through the rigid seal 500. Correspondingly, since the design of the second protective sheet 2122 and the second explosion-proof film 2132 is cancelled, in order to ensure the air layer on the inner surface 2102 of the optical waveguide sheet 211, the aforementioned second frame adhesive 2162 can be provided between the optical waveguide sheet 211 and the annular convex edge 221, so as to space the optical waveguide sheet 211 from the main body portion 2221 by the thickness of the second frame adhesive 2162 while bonding the optical waveguide sheet 211 and the annular convex edge 211. In addition, in order to improve the dust-proof effect, the display module 20 can also be provided with an electrostatic coil 600 for adsorbing small-particle dust. As Figure 23 shown, the electrostatic coil 600 can be arranged on the inner side wall of the receiving groove 311, and the electrostatic coil 600 can be arranged on the periphery of the optical engine 320. Thus, while using the convex points 511 or the annular convex ribs 512 on the rigid seal 500 to block large-particle dust, the electrostatic coil 600 can also be used to adsorb small-particle dust to improve the dust-proof performance of the display module 20.

[0098] Please refer to Figure 27 , Figure 27 which is another structural schematic diagram of the head-mounted device 5 provided by the embodiment of the present application.

[0099] In some embodiments, the display module 20 can also be integrated on the wearing bracket 10 to jointly form an integrated head-mounted device 5 with the wearing bracket 10. As Figure 27As shown, the display lens 210 can be arranged on the spectacle frame 110 in the same way as the aforementioned functional lens, and the two can still be fixedly connected by means of bonding, snap connection or interference fit. The optical engine 320 can also be arranged in the spectacle frame 110 and is arranged opposite to the display lens 210, so as to facilitate the cooperation between the display lens 210 and the optical engine 320 to realize the functions of virtual reality or augmented reality. For example, a receiving cavity for receiving the optical engine 320 can be arranged in the area where the spectacle frame 110 is connected to the temple 120, and the receiving cavity can also communicate with the display lens 210 on the spectacle frame 110, so that the display lens 210 and the optical engine 320 can be arranged opposite to each other to realize the functions of virtual reality or augmented reality. Correspondingly, the elastic member 400 and the rigid seal 500 can still be arranged between the display lens 210 and the optical engine 320 to ensure the dust-proof performance of the display module 20 while reducing the lamination thickness and weight of the display lens 210. Different from the aforementioned external wearable device 5, the lens assembly 200 in this embodiment can be provided with only the display lens 210, and the host 300 can be provided with only the optical engine 320. The display lens 210 can be fixedly arranged on the spectacle frame 110 by means of bonding, snap connection or welding. The optical engine 320 can also be fixedly arranged in the receiving cavity of the temple 120 by means of bonding, snap connection or welding.

[0100] In the display module 20 provided by the embodiment of the present application, a connecting member 222 is arranged on one of the lens assembly 200 and the host 300, and a mating member 312 is arranged on the other. The connecting member 222 can be detachably connected to the mating member 312 after being inserted into the mating member 312, so that the lens assembly 200 and the host 300 can be detachably connected by using the connecting member 222 and the mating member 312. In this way, the user can replace the lens assembly 200 or the host 300 according to needs.

[0101] The above are only some embodiments of the present application, and thus do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A display module, characterized in that The display module includes: a display lens, a frame, a host, an elastic seal, and a rigid seal; The display lens is disposed on the frame, and the frame is connected to the host; the display lens is further provided with a waveguide sheet; the waveguide sheet is configured to present a virtual reality or augmented reality environment under the control of the host; the elastic seal is disposed between the rigid seal and the host and abuts against the rigid seal and the host respectively; the rigid seal is disposed between the waveguide sheet and the elastic seal and contacts the waveguide sheet and the elastic seal respectively, and one side of the rigid seal close to the waveguide sheet is further configured to have a rough surface so that a gap is formed between the waveguide sheet and the rigid seal; One of the frame and the host is provided with a connecting member, and the other is provided with a mating member; the connecting member is configured to be inserted into the mating member and can rotate relative to the mating member after being inserted into the mating member, and the connecting member is further configured to be engaged with the mating member after rotating relative to the mating member.

2. The display module according to claim 1, characterized in that, A plurality of protrusions are provided on one side of the rigid seal close to the waveguide sheet so that one side of the rigid seal close to the waveguide sheet has a rough surface.

3. The display module according to claim 2, wherein The protrusions are configured as convex points, and the plurality of convex points are staggered with each other on the rigid seal.

4. The display module according to claim 2, wherein The protrusions are configured as annular ridges, and the plurality of annular ridges are arranged in a surrounding and spaced manner with each other on the rigid seal.

5. The display module according to claim 2, wherein The display lens is disposed opposite to the host; the display lens is provided with a protective sheet and the waveguide sheet arranged in a stacked manner, and the protective sheet is located on the side of the waveguide sheet facing away from the host.

6. The display module according to claim 5, wherein The host is provided with a housing and an optical engine; The housing is provided with a receiving groove, and the optical engine is disposed in the receiving groove; the frame is connected to the housing; the waveguide sheet covers the receiving groove and is disposed opposite to the optical engine, and the waveguide sheet is configured to present a virtual reality or augmented reality environment under the control of the optical engine.

7. The display module according to claim 6, characterized in that, The host is further provided with an electrostatic coil, and the electrostatic coil is disposed on the side wall of the receiving groove and is adjacent to the optical engine; wherein, the electrostatic coil is configured to adsorb dust.

8. A head-mounted device, characterized in that, The head-mounted device includes: a wearing bracket and a display module, and the display module is provided with a display lens, a frame, a host, an elastic seal, and a rigid seal; The display lens is disposed on the frame, and the frame is connected to the host; the display lens is further provided with a waveguide sheet; the waveguide sheet is configured to present a virtual reality or augmented reality environment under the control of the host; the host is connected to the wearing bracket; the elastic seal is disposed between the rigid seal and the host and abuts against the rigid seal and the host respectively; the rigid seal is disposed between the waveguide sheet and the elastic seal and contacts the waveguide sheet and the elastic seal respectively, and one side of the rigid seal close to the waveguide sheet is further configured to have a rough surface so that a gap is formed between the waveguide sheet and the rigid seal; One of the frame and the host is provided with a connecting member, and the other is provided with a mating member; the connecting member is configured to be inserted into the mating member and can rotate relative to the mating member after being inserted into the mating member, and the connecting member is further configured to be engaged with the mating member after rotating relative to the mating member.

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