CN115755388A

CN115755388A - Display module and head-mounted equipment

Info

Publication number: CN115755388A
Application number: CN202111034187.3A
Authority: CN
Inventors: 周伟; 慕明刚; 王锐添
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2023-03-07

Abstract

The application provides a display module assembly and head-mounted device, this display module assembly includes: a display lens, a host, and a rigid seal; the display lens is connected with the host, and the display lens is provided with an optical waveguide sheet; the optical waveguide sheet is configured to present a virtual reality or augmented reality environment under control of the host; the rigid sealing member is disposed between the optical waveguide sheet and the host, and is in contact with the optical waveguide sheet and the host, respectively, and a side of the rigid sealing member adjacent to the optical waveguide sheet is further configured to have a rough surface so that a gap is formed between the optical waveguide sheet and the rigid sealing member. By the mode, the optical waveguide sheet and the host can be sealed by the rigid sealing piece, and the thickness and the weight of the lamination of the display lens can be reduced.

Description

Display module assembly and head-mounted equipment

Technical Field

The application relates to the technical field of electronic equipment, in particular to a display module and a head-mounted device.

Background

Along with the continuous development and the popularization of intelligent glasses, the electronic devices loaded on the existing intelligent glasses are more and more, and the realized functions are more and more comprehensive, so that people can often wear the intelligent glasses to go out for work or socialize. Therefore, how to reduce the weight of the smart glasses has become a main focus of those in the industry.

Disclosure of Invention

An aspect of the embodiment of the present application provides a display module, the display module includes: a display lens, a host, and a rigid seal; the display lens is connected with the host, and an optical waveguide sheet is arranged on the display lens; the optical waveguide sheet is configured to present a virtual reality or augmented reality environment under control of the host; the rigid sealing member is disposed between the optical waveguide sheet and the host, and is in contact with the optical waveguide sheet and the host, respectively, and a side of the rigid sealing member adjacent to the optical waveguide sheet is further configured to have a rough surface so that a gap is formed between the optical waveguide sheet and the rigid sealing member.

In another aspect, an embodiment of the present application further provides a head-mounted device, including: the display module is provided with a display lens, a host and a rigid sealing piece; the display lens is connected with the host, and the display lens is provided with an optical waveguide sheet; the optical waveguide sheet is configured to present a virtual reality or augmented reality environment under control of the host; the host is connected with the wearing bracket; the rigid sealing member is disposed between the optical waveguide sheet and the host, and is in contact with the optical waveguide sheet and the host, respectively, and a side of the rigid sealing member adjacent to the optical waveguide sheet is further configured to have a rough surface so that a gap is formed between the optical waveguide sheet and the rigid sealing member.

In another aspect, the embodiment of the present application further provides a display module, the display module includes: a display lens, a frame, a host, and a rigid seal; the display lens is arranged on the frame, and the frame is connected with the host; the display lens is also provided with an optical waveguide sheet; the optical waveguide sheet is configured to present a virtual reality or augmented reality environment under control of the host; the rigid sealing member is arranged between the optical waveguide sheet and the host machine and is respectively contacted with the optical waveguide sheet and the host machine, and one side of the rigid sealing member close to the optical waveguide sheet is also configured to be provided with a rough surface so as to form a gap between the optical waveguide sheet and the rigid sealing member; one of the frame and the host is provided with a connecting piece, and the other is provided with a matching piece; the connecting piece is configured to be inserted into the matching piece and can rotate relative to the matching piece after being inserted into the matching piece, and the connecting piece is also configured to be clamped with the matching piece after rotating relative to the matching piece.

The display module that this application embodiment provided, through set up the rigidity sealing member between optical waveguide piece and host computer, and the one side that the rigidity sealing member is close to the optical waveguide piece has the mat face, not only can utilize the rigidity sealing member to seal optical waveguide piece and host computer, can also form the space between optical waveguide piece and rigidity sealing member to utilize this space to form the one deck air bed on the optical waveguide piece, in order to realize the total reflection of optical waveguide piece. Compared with the common display lens, the display lens provided by the embodiment can eliminate the protective glass on the surface of the optical waveguide sheet, directly utilizes the rigid sealing member to seal the optical waveguide sheet and the host, and cannot damage the air layer on the surface of the optical waveguide sheet, so that the lamination thickness and the weight of the display lens are reduced while the total reflection of the optical waveguide sheet is realized.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a head-mounted device 5 provided in an embodiment of the present application;

FIG. 2 is a schematic diagram of the construction of the wearable mount 10 of FIG. 1;

FIG. 3 is a schematic structural diagram of the display module 20 shown in FIG. 1;

fig. 4 is a schematic view of the structure of the lens assembly 200 of fig. 3;

FIG. 5 is a schematic diagram of the stack structure of the lens 210 shown in FIG. 4;

FIG. 6 is a schematic diagram of the structure of the frame 220 of FIG. 4;

FIG. 7 is a schematic view of the frame 220 of FIG. 6 from another perspective;

FIG. 8 is an enlarged view of a portion of FIG. 7 at A;

FIG. 9 is a schematic cross-sectional view of the display module 20 shown in FIG. 3 taken along line V-V;

fig. 10 is a schematic structural view of the housing 310 in fig. 9;

fig. 11 is a partial enlarged view at B in fig. 10;

FIG. 12 is an enlarged view of a portion of FIG. 9 at C;

FIG. 13 is a schematic view of the engagement portion 2223 of FIG. 9 inserted into the mating member 312;

FIG. 14 is a schematic view of the engagement portion 2223 of FIG. 13 being inserted into the mating member 312 in another state;

FIG. 15 is a schematic view of the engagement portion 2223 of FIG. 14 in a further state inserted into the mating member 312;

FIG. 16 is a diagram illustrating the engagement portion 2223 of FIG. 15 inserted into the mating member 312 in an embodiment;

fig. 17 is a schematic view of the state in which the engagement portion 2223 of fig. 15 is inserted into the fitting member 312 in another embodiment;

FIG. 18 is a schematic view of engagement portion 2223 of FIG. 15 inserted into engagement member 312 in a further embodiment;

fig. 19 is a schematic structural view of a dust cap 30 according to an embodiment of the present application;

fig. 20 is a schematic diagram illustrating a connection structure between the ear hook 40 and the host 300 according to an embodiment of the present disclosure;

FIG. 21 is a cross-sectional view of the dust cap 30, ear hook 40 and housing 310 of FIG. 20 taken along line IV-IV;

FIG. 22 is a schematic cross-sectional view of another portion of the display module 20 shown in FIG. 3 along line V-V;

FIG. 23 is an enlarged view of a portion of FIG. 22 at D;

FIG. 24 is a schematic view of the construction of the rigid seal 500 of FIG. 22;

fig. 25 is a partial enlarged view at E in fig. 24;

FIG. 26 is another partial schematic view at E of FIG. 24;

fig. 27 is another schematic structural diagram of the head-mounted device 5 according to the embodiment of the present application.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples of the present application, not all examples, and all other examples obtained by a person of ordinary skill in the art without making any creative effort fall within the protection scope of the present application.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The present application sets forth a head-mounted device. The head-mounted device may be an augmented reality or virtual reality device, such as augmented reality or virtual reality glasses. Of course, the head-mounted device may also be other devices that need to be worn on the head, such as glasses, for example, a device that has other functions such as illumination and can be worn on the head, which is not described in detail herein. Augmented reality or virtual reality glasses are described in detail below as examples.

In an example of augmented reality or virtual reality glasses, the head-mounted device may be configured to communicate data to and receive data from an external processing device through a signal connection, which may be a wired connection, a wireless connection, or a combination thereof. However, in other cases, the head mounted device may be used as a stand-alone device, i.e. the data processing is performed in the head mounted device itself. The signal connection may 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 may be, for example, a gaming console, a personal computer, a tablet computer, a smart phone, or other type of processing device. The signal connection may 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), or the like, or combinations thereof. Additionally, the external processing device may communicate with one or more other external processing devices via a network, which may 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.

Display components, optics, sensors, processors, etc. may be mounted in the head-mounted device. In the example of augmented reality or virtual reality glasses, the display component is designed to implement the functionality of the virtual reality glasses, for example, by projecting light into the user's eyes, e.g., by projecting light into the user's eyes, overlaying an image on the user's view of their real-world environment. The head-mounted device may also include an ambient light sensor, and may also include electronic circuitry to control at least some of the above-described components and perform associated data processing functions. The electronic circuitry may include, for example, one or more processors and one or more memories.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a head-mounted device 5 according to an embodiment of the present disclosure, fig. 2 is a schematic structural diagram of a wearing support 10 in fig. 1, and fig. 3 is a schematic structural diagram of a display module 20 in fig. 1.

As shown in fig. 1, a head-mounted device 5 provided in an embodiment of the present application may include: the stand 10 and the display module 20 are worn. Wherein, wear support 10 and can wear at user's head, display module 20 can set up on wearing support 10, and display module 20 can be used for appearing augmented reality or virtual reality environment in user's eyes place ahead. Of course, the display module 20 may also be used to implement other functions required by the head-mounted device 5, which is not limited in this embodiment.

The wearable stand 10 may be used to carry the display module 20 such that a user may wear the display module 20 on the head by wearing the stand 10 to present a virtual reality or augmented reality environment in front of the user's eyes. As shown in fig. 2, the wearable brace 10 may be provided with a frame 110 and temples 120. The frame 110 may be worn over the nose of the user, i.e., in front of the user's eyes. The temples 120 may be provided at opposite sides of the frame 110, and the temples 120 may be worn at the ears of the user. Thus, the frame 110 and the temple 120 cooperate to realize the wearing function of the wearing support 10, so that the user can wear the display module 20 on the head for use by wearing the support 10. The frame 110 and the temple 120 may be fixedly connected by, for example, snapping, welding, or adhering, so as to prevent the temple 120 from moving relative to the frame 110, which may cause the display module 20 and the wearable bracket 10 to interfere with each other. Of course, the frame 110 and the temple 120 may be integrally formed by a process such as press forming, injection molding, or heat absorption molding to improve the structural strength of the two.

Further, the frame 110 may be used to mount corresponding functional lenses, and the temple 120 may be used to connect with the display module 20. The lens 110 can be used for installing functional lenses such as flat glasses, anti-glare glasses, colored glasses, and myopia glasses, so as to be convenient for users with special requirements to use. The temple 120 and the display module 20 can be detachably connected by magnetic attraction, snap fit, interference fit, etc. so that the user can replace the wearing bracket 10 or the display module 20 with different functions or styles according to the requirement. In some embodiments, the frame 110 may be used only for connecting the temples 120 without installing corresponding functional lenses. The temple 120 and the display module 20 may also be fixedly connected by welding, snapping, bonding, etc. In addition, the specific structures of the frame 110 and the temple 120 can refer to the prior art, and the detailed description is omitted here.

The display module 20 may be connected to the temple 120, and a partial region of the display module 20 may be disposed opposite to the frame 110, so that the display module 20 presents a virtual reality or augmented reality environment in front of the eyes of the user. As shown in fig. 3, the display module 20 may be provided with a lens assembly 200 and a host 300. The mirror assembly 200 may be connected with the host 300, and the mirror 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 specifically can be near-to-eye display equipment, and it can use independently, also can use in hanging on wearing the mirror leg 120 of support 10 outward, and wears support 10 and display module 20 and can constitute split type head mounted device 5 jointly to the user that supplies to have the demand uses. In some embodiments, the display module 20 may also implement other functions besides the virtual reality or augmented reality environment, such as shooting, lighting, and audio playing, so as to improve the functional diversity of the head-mounted device 5.

Referring to fig. 4 to 5, fig. 4 is a schematic structural diagram of the lens assembly 200 in fig. 3, and fig. 5 is a schematic structural diagram of a stack of the lens 210 shown in fig. 4.

The lens assembly 200 may be connected with the host 300 and may present functions of a virtual reality or augmented reality environment under the control of the host 300. As shown in fig. 4, 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 virtual reality or augmented reality functions under the control of the host 300. The frame 220 may be disposed in a ring shape, and the display lens 210 may be disposed in a space surrounded by the frame 220 and fixedly connected to the frame 220. For example, the display lenses 210 and the frame 220 can be adhered by dispensing glue to fix the display lenses 210 on the frame 220. Of course, the display lens 210 can be fixed on the frame 220 by means of, for example, a snap fit or an interference fit, besides by adhesion, which is not limited in this embodiment.

The display lens 210 may be disposed on the frame 220, and after the user wears the head-mounted device 5, the display lens 210 may be located in front of the eyes of the user to implement virtual reality or augmented reality functions under the control of the host computer 300. As shown in fig. 5, the display lens 210 may be provided with an optical waveguide sheet 211, a protective sheet 212, an explosion-proof film 213, a functional film 214, and an optical filter 215. The optical waveguide sheet 211 may be used to guide light emitted from the host 300 into the eyes of the user and form images on the retina, so as to implement the virtual reality or augmented reality function of the display module 20. Protective sheets 212 may be disposed on opposite sides of the optical waveguide sheet 211, which may serve to protect the optical waveguide sheet 211. The explosion-proof film 213 may be provided on a side of the protective sheet 212 facing away from the optical waveguide sheet 211, which may serve to prevent the protective sheet 212 from exploding. A functional membrane 214 may be provided on the side of the bursting disk 213 facing away from the protective sheet 212, which may be used for colour change. The filter 215 may be disposed on a side of the functional module 214 facing away from the explosion-proof membrane 213, and may be used for filtering stray light. In some embodiments, when the display module 20 does not need to implement virtual reality or augmented reality functions, the display lens 210 may also be a normal functional lens.

The optical waveguide sheet 211 may be provided with a grating structure 2111 and optical waveguide glass 2112. The grating structure 2111 may be disposed on the optical waveguide glass 2112, and may be configured to couple in light emitted from the host 300 and couple out the light to the retina of the user for imaging, so as to implement the function of virtual reality or augmented reality of the display lens 210. Wherein, the grating structure 2111 may be a nano-structure, which may be machined on the optical waveguide glass 2112 by a nano-imprint technique. The optical waveguide glass 2112 can be a high index glass substrate, and the optical waveguide glass 2112 can have an outer surface 2101 and an inner surface 2102 disposed opposite one another, and the grating structure 2111 can be molded onto the outer surface 2101 of the optical waveguide glass 2112. In this embodiment, the outer surface 2101 may be a surface of the optical waveguide glass 2112 facing away from the eyes of the user when the user wears the display module 20 on the head, and the inner surface 2102 may be a surface of the optical waveguide glass 2112 adjacent to the eyes of the user. In addition, the specific optical principle of the optical waveguide sheet 211 can be referred to in the prior art, and the detailed description of the embodiment is omitted here.

The protection sheets 212 may be disposed at opposite sides of the optical waveguide sheet 211, and may be used to protect the grating structures 2111 and the optical waveguide glass 2112, and reduce the probability of damage of the optical waveguide sheet 211 due to external force impact. The protective sheet 212 may be provided with a first protective sheet 2121 and a second protective sheet 2122. The first protective sheet 2121 may be provided on the outer surface 2101 of the optical waveguide glass 2112, and the second protective sheet 2122 may be provided on the inner surface 2102 of the optical waveguide glass 2112. In this manner, the first protective sheet 2121 and the second protective sheet 2122 may sandwich the optical waveguide sheet 211 to protect the optical waveguide sheet 211. Among them, the first protective sheet 2121 and the second protective sheet 2122 may be glass having a 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 may be corning glass. Corning glass has high durability and scratch resistance as compared with ordinary tempered glass, and can bear strong pressure and repeated touch to provide sufficient impact resistance to the first protective sheet 2121 and the second protective sheet 2122.

The light emitted from the main unit 300 needs to have a sufficiently low optical refractive index of the surface of the optical waveguide sheet 211, that is, another medium on the outer surface 2101 and the inner surface 2102, in order to perform imaging by total reflection on the optical waveguide sheet 211. At present, the medium with a lower refractive index and a more suitable medium is air, so an interval is also needed 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 the contact surface of the two media has an obvious refractive index difference, thereby achieving the purpose of total reflection.

In order to allow the optical waveguide sheet 211 and the protective sheet 212 to be spaced apart from each other, a first sealant 2161 may be interposed between the first protective sheet 2121 and the optical waveguide glass 2112 to bond the first protective sheet 2121 and the optical waveguide glass 2112 while allowing the first protective sheet 2121 and the optical waveguide glass 2112 to be spaced apart from each other by the thickness of the first sealant 2161, thereby forming an air layer between the first protective sheet 2121 and the optical waveguide glass 2112. Accordingly, a second sealant 2162 may be disposed between the second protective sheet 2121 and the optical waveguide glass 2112, so as to bond the second protective sheet 2122 and the optical waveguide glass 2112, and to achieve a spacing between the second protective sheet 2122 and the optical waveguide glass 2112 by the thickness of the second sealant 2162, thereby forming an air layer between the second protective sheet 2122 and the optical waveguide glass 2112. In this way, not only the total reflection of the optical waveguide sheet 211 can be achieved, but also the grating structure 2111 can be protected by the gap between the first protective sheet 2121 and the optical waveguide glass 2112, and the probability that the first protective sheet 2121 interferes with the grating structure 2111 by the impact of an external force can be reduced. In this embodiment, the first sealant 2161 and the second sealant 2162 can be disposed along the edge of the optical waveguide sheet 211, and the first sealant 2161 and the second sealant 2162 can be optical sealant, so as to ensure that the display lens 210 has sufficient visible range and transmittance.

The explosion-proof film 213 may be disposed at a side of the protective sheet 212 facing away from the optical waveguide sheet 211, which may serve to prevent the protective sheet 212 from being exploded. The rupture membrane 213 may be provided with a first rupture membrane 2131 and a second rupture membrane 2132. The first explosion-proof film 2131 may 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 may be provided on the side of the second protective sheet 2122 facing away from the optical waveguide sheet 211. In this manner, the first and

second rupture films

2131 and 2132 can sandwich the first and second protective sheets 2121 and 2122 therebetween, so as to avoid the problem that the first and second protective sheets 2121 and 2122 are cracked to generate glass cullet which may cause damage to users. The first explosion-proof film 2131 may be adhered to the first protective sheet 2121 by optical glue, and the second explosion-proof film 2132 may also be adhered to the second protective sheet 2122 by optical glue, so as to ensure the light-transmitting performance of the display lens 210.

In some embodiments, in order to reduce the thickness and weight of the stack of display lenses 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, i.e., the side of the second protective sheet 2122 adjacent to the eyes of the user, and the first explosion-proof film 2131 may be eliminated. In some embodiments, when the frame 110 with the frame 10 is fitted with functional lenses, the first and

second rupture membranes

2131 and 2132 may be eliminated to block glass debris generated by the burst of the protective sheet 212 from the functional lenses on the frame 110.

The functional film 214 may be disposed on a side of the first explosion-proof film 2131 facing away from the first protection sheet 2121, and may be used for changing color to improve the appearance 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 with a certain wavelength. Alternatively, the functional die 214 can be an electrochromic film, and the electrochromic film can be made of an electrochromic material. The electrochromic material may be one of an inorganic electrochromic material and an organic electrochromic material. The inorganic electrochromic material may be tungsten trioxide. The organic electrochromic material can be one of polythiophene and derivatives thereof, viologen, tetrathiafulvalene, metal phthalocyanine compounds and the like. In this way, the functional film 214 can realize a color changing function to improve the appearance expression of the head-mounted device 5. The photochromic material and the electrochromic material can be prepared by the technical solutions existing in the prior art within the understanding range of the skilled person, and the details are not described herein. In some embodiments, the display lens 210 may not be provided with the functional film 214 in order to reduce the stack thickness and weight of the display lens 210.

The filter 215 may be disposed on a side of the functional film 214 away from the first explosion-proof film 2131, and may be used to filter stray light, and also bring a sunglass effect to the display lens 210. The optical filter 215 may be a polarizer, that is, a polarizing glass, so that the optical filter 215 not only can filter stray light, but also has sufficient structural strength and scratch resistance and impact resistance to further protect the whole laminated structure of the display lens 210. Meanwhile, the optical filter 215 may be bonded and fixed to the functional film 214 by an optical adhesive, so as to ensure the light transmittance of the display lens 210. In this way, the display lens 210 can not only realize the function of virtual reality or augmented reality by imaging in the eyes of the user through the optical waveguide sheet 211, but also bring sunglasses effect to the display lens 210 by filtering stray light through the optical filter 215. In some embodiments, the display lens 210 may not be provided with the filter 215 in order to reduce the thickness and weight of the stack of the display lens 210.

Referring to fig. 6 to 8 in conjunction with fig. 4, fig. 6 is a schematic structural diagram of the frame 220 in fig. 4, fig. 7 is a schematic structural diagram of the frame 220 in fig. 6 from another view angle, and fig. 8 is a partially enlarged view of a point a in fig. 7.

The frame 220 can be used to mount the display lenses 210 such that the display lenses 210 can be mounted to the host 300 through the frame 220. As shown in fig. 4 and 6, the frame 220 may surround a receiving space 2201 for receiving the display lens 210, and the receiving space 2201 may be adapted to the display lens 210. The frame 220 may further be provided with an annular flange 221 and a connecting member 222, and both the annular flange 221 and the connecting member 222 may be disposed in the accommodating space 2201. The annular ledge 221 may be used to carry the display lens 210 to facilitate assembly of the display lens 210 with the frame 220. The connection member 222 can be connected with the annular flange 221, and the connection member 222 can be used to detachably connect with the host computer 300, so that the frame 220 can be detached from the host computer 300 to facilitate the user to replace the lens assembly 200 or the host computer 300 according to the requirement. In this embodiment, the frame 220 may be made of plastic, and the annular protruding edge 221 and the connecting member 222 may be a part of the frame 220, which may be integrally formed by an injection molding process. In some embodiments, the material of the frame 220 may also be not limited to plastic, and the annular protruding edge 221 and the connecting member 222 may also be separate components from the frame 220, as long as the annular protruding edge 221 and the connecting member 222 can be fixedly connected with the frame 220.

The annular ledge 221 may be disposed at a side of the frame 220 located in the accommodating space 2201, and the annular ledge 221 may be disposed in the accommodating space 2201 in a protruding manner, so that when the display lens 210 is assembled with the frame 220, the display lens 210 may be first positioned on the annular ledge 221 disposed in the accommodating space 2201, and then fixedly connected with the frame 220 in a corresponding manner, so as to improve the convenience of assembling the display lens 210 and the frame 220. For example, after the display mirror 210 is placed on the annular convex edge 221, glue can be dispensed between the display mirror 210 and the frame 220 to adhere the display mirror 210 and the frame 220, so as to achieve a fixed connection therebetween. In addition, before the display lens 210 is placed on the annular convex edge 221, glue may be first applied to the annular convex edge 221 to adhere the display lens 210 and the annular convex edge 221, so as to improve the connection between the display lens 210 and the frame 220. In this embodiment, one side of the display lens 210 close to the eyes of the user, that is, the second anti-explosion membrane 2132 may be disposed on the annular convex edge 221 and bonded and fixed with the annular convex edge 221, and the second anti-explosion membrane 2132 and the annular convex edge 221 may also be bonded and fixed by an optical adhesive. In some embodiments, the frame 220 can be disposed only around the edge of the display lens 210 without the annular ledge 221, and the display lens 210 and the frame 220 can be connected by one or more of clamping, welding, and interference fit.

The connection member 222 may be connected to the annular flange 221, and a partial region of the connection member 222 may be protruded out of the receiving space 2201, so as to facilitate the connection member 222 to be detachably connected to the host computer 300. As shown in fig. 7 to 8, the connector 222 may be provided with a main body portion 2221, an extending portion 2222, and an engaging portion 2223. The body portion 2221 may be disposed in the receiving space 2201 and connected to the annular flange 221. The extending portion 2222 may be disposed on a side of the main body portion 2221 facing away from the display lens 210, and the extending portion 2222 may be disposed to protrude from the accommodating space 2201. The engaging portion 2223 may be disposed on the extending portion 2222, which may be used for detachable connection with the host 300. In this embodiment, when the frame 220 is connected to the host 300, an orthogonal projection of the connector 222 on the host 300 may be disposed around the light outlet 301 (shown in fig. 9) of the host 300, so as to avoid the light outlet 301 being blocked by the connector 222 after being connected to the host 300. In some embodiments, the connecting element 222 may also be provided with only the engaging portion 2223, that is, the engaging portion 2223 may be the whole connecting element 222, and the main body portion 2221 and the extending portion 2222 may be a part of the frame 220, which may be used to cooperate with the engaging portion 2223 (the connecting element 222) to be detachably connected with the host 300.

The body portion 2221 may be disposed flush with the annular ledge 221. That is, a side of the main body portion 2221 close to the display mirror 210 may be flush with a side of the annular convex edge 221 close to the display mirror 210, and a side of the main body portion 2221 away from the display mirror 210 may also be flush with a side of the annular convex edge 221 away from the display mirror 210. In this way, when the display lens 210 and the annular convex edge 221 are positioned and assembled, glue may be dispensed on the side of the main body portion 2221 close to the display lens 210 to adhere the second explosion-proof membrane 2132 and the main body portion 2221, so as to improve the connection firmness between the display lens 210 and the frame 220. The main body 2221 may also be arranged in a circular ring shape in external shape, so that an orthogonal projection of the main body 2221 on the main unit 300 may be arranged around the light outlet 301 of the main unit 300.

The extension portion 2222 may be disposed on a side of the main body portion 2221 facing away from the display lens 210, and the extension portion 2222 may be disposed to protrude from the receiving space 2201, so that the extension portion 2222 may be configured to be inserted into the host computer 300, so that the engaging portion 2223 on the extension portion 2222 may be detachably connected with the host computer 300. The extension 2222 may also be disposed in a circular ring shape in external shape, and the extension 2222 may further surround the housing space 2202, so that the orthographic projection of the extension 2222 on the main unit 300 may also be disposed around the light outlet 301 of the main unit 300.

The engaging portion 2223 may be disposed on the extending portion 2222, and the engaging portion 2223 may be located on a side of the extending portion 2222 away from the receiving space 2202. When the extension portion 2222 is inserted into the host 300, the engaging portion 2223 may be inserted into the host 300 along with the extension portion 2222 and detachably connected to the host 300. The extending portion 2222 may further rotate relative to the host 300 after being inserted into the host 300, and the engaging portion 2223 may also rotate relative to the host 300 along with the extending portion 2222 and may be engaged with the host 300 after rotating, so that the extending portion 2222 cannot be withdrawn from the host 300, thereby achieving the assembly of the frame 220 and the host 300. Accordingly, the extending portion 2222 can also rotate reversely relative to the host 300, and the engaging portion 2223 can also rotate reversely with the extending portion 2222 relative to the host 300, and can release the engaging state with the host 300 after the rotation is reversed, so that the extending portion 2222 can be withdrawn from the host 300, thereby realizing the detachment of the frame 220 and the host 300. As such, the frame 220 may be detachably connected with the host computer 300 using the connector 222, so that the user may replace the lens assembly 200 and the host computer 300 as desired.

Further, the number of the engaging portions 2223 may be four, and the four engaging portions 2223 may be uniformly distributed on a side of the extending portion 2222 away from the receiving space 2202. Of course, the number of the engaging portions 2223 is not limited to four, and may be two, three, five or more, and only the host 300 may be provided with the engaging member corresponding to the engaging portions 2223, which is not limited in this embodiment.

In some embodiments, the engaging portion 2223 may also be disposed on a side of the extending portion 2222 close to the receiving space 2202, i.e., the engaging portion 2223 may also be disposed in the receiving space 2202. At this time, in order to facilitate the engagement portion 2223 to be engaged with the host computer 300, the extension portion 2222 may be inserted into the host computer 300, so that the host computer 300 may be detachably connected to the engagement portion 2223 after being inserted into the receiving space 2202 of the extension portion 2222. The specific assembling and disassembling manner of the host 300 and the engaging portion 2223 is the same as or similar to that of the previous embodiment, and is not described herein again.

Referring to fig. 9 to 12, fig. 9 is a partial sectional view of the display module 20 of fig. 3 along v-v, fig. 10 is a structural view of the housing 310 of fig. 9, fig. 11 is a partial enlarged view of fig. 10 at B, and fig. 12 is a partial enlarged view of fig. 9 at C.

The host 300 and the display lens 210 cooperate to implement virtual reality or augmented reality functions of the display module 20. As shown in fig. 9, the main body 300 may be provided with a housing 310 and an optical engine 320. The housing 310 may be used to mount the light engine 320, and the housing 310 may also be used to removably couple with the frame 220. The light engine 320 can be disposed in the housing 310, and the light engine 320 can be disposed opposite to the display lens 210, so that the display lens 210 can realize functions of virtual reality or augmented reality under the control of the light engine 320. In this embodiment, the host 300 may be configured to implement a function of an earphone in addition to a function of virtual reality or augmented reality, so as to provide a user with functions of voice broadcasting or music playing, and thus, the function of the host 300 is more diversified. In some embodiments, the host 300 may also be used to implement functions such as shooting and lighting, and only the corresponding electronic devices are integrated on the host 300.

The housing 310 may be provided with a receiving groove 311 for mounting the optical engine 320, and the receiving groove 311 may also be used for mounting other electronic devices required by the host 300, such as a circuit board, a battery, a speaker, and the like. The receiving slot 311 can be further inserted by the extending portion 2222, so that when the frame 220 is connected with the housing 310, the engaging portion 2223 can be inserted into the receiving slot 311 along with the extending portion 2222, and can be detachably connected with the housing 310. Meanwhile, the accommodating groove 311 is formed on the housing 310 to have an opening, which may be the light outlet 301 of the host 300, and the light outlet 321 of the optical device 320 may be disposed toward the light outlet 301, so that the light emitted by the optical device 320 can irradiate the housing 310 through the light outlet 301. Accordingly, after the engaging portion 2223 is inserted into the receiving groove 311 along with the extending portion 2222, the optical machine 320 can be disposed opposite to the display lens 210 through the light outlet 301, so that the light emitted by the optical machine 320 can be irradiated onto the display lens 210, and thus the light is coupled to the eyes of the user by the display lens 210 for imaging, thereby implementing the virtual reality or augmented reality function of the display module 20. The specific structure and working principle of the optical engine 320 may refer to the prior art, and are not described herein again.

As shown in fig. 9 to 11, the housing 310 may further be provided with a fitting member 312, and the fitting member 312 may be disposed on an inner sidewall of the receiving groove 311. Thus, after the engaging portion 2223 is inserted into the receiving slot 311 along with the extending portion 2222, the engaging member 312 can engage with the engaging portion 2223 to achieve the detachable connection between the frame 220 and the housing 310. Wherein, the engaging member 312 may be provided with a slot 3121 for engaging with the engaging portion 2223. When the extending portion 2222 is inserted into the receiving slot 311, the engaging portion 2223 can be inserted into the mating member 312 along the slot 3121. When the extending portion 2222 rotates relative to the housing 310, the engaging portion 2223 may also rotate relative to the fitting member 312 along the slot 3121, and may engage with the inner wall of the slot 3121, that is, the fitting member 312 after rotating. Accordingly, the engaging portion 2223 may also be rotated reversely to release the engagement with the engaging member 312, thereby achieving the detachable connection of the frame 220 and the housing 310. In this embodiment, the number of the slots 3121 may also be four, and the four slots 3121 may be uniformly distributed on the inner side wall of the receiving groove 311 to match with the four engaging portions 2223 on the extending portion 2222. In some embodiments, the number of the card slots 3121 is not limited to four, and the specific number may be adjusted according to the number of the clamping portions 2223, as long as the clamping portions 2223 can cooperate with the card slots 3121 to achieve the detachable connection between the frame 220 and the housing 310.

Specifically, the card slot 3121 may be provided with a first card slot 3121a and a second card slot 3121b that communicate with each other, and the first card slot 3121 may also communicate with the outside of the receiving groove 311. As such, when the extending portion 2222 is inserted into the receiving slot 311, the engaging portion 2223 can be inserted into the mating member 312 along the first slot 3121 a. When the extending portion 2222 rotates relative to the housing 310, the engaging portion 2223 can rotate along the second engaging groove 3121b relative to the engaging element 312, and can engage with the inner wall of the second engaging groove 3121b after rotating, that is, engage with the engaging element 312, so that the extending portion 2222 cannot be withdrawn from the receiving groove 311, and the assembly of the frame 220 and the housing 310 is achieved. When the extending portion 2222 rotates reversely relative to the housing 310, the engaging portion 2223 can rotate reversely along the second engaging slot 3121b and move back into the first engaging slot 3121a, so that when the extending portion 2222 exits the receiving slot 311, the engaging portion 2223 can also exit the engaging element 312 along the first engaging slot 3121a, thereby achieving the detachment of the frame 220 and the housing 310. In this embodiment, the fitting member 312 may be a part of an inner sidewall of the receiving groove 311, that is, the inner sidewall of the receiving groove 311 may be opened with a first engaging groove 3121a and a second engaging groove 3121b.

In some embodiments, when the engaging portion 2223 is disposed in the receiving space 2202, so that the housing 310 can be inserted into the receiving space 2202 to be detachably connected with the engaging portion 2223, the fitting element 312 can be disposed on an outer surface of a partial area of the housing 310 inserted into the receiving space 2202, that is, a first engaging groove 3121a and a second engaging groove 3121b can be formed on the outer surface of the partial area of the housing 310 inserted into the receiving space 2202, so that 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 element 312 along the first engaging groove 3121a, and can be engaged with the fitting element 312 after rotating along the second engaging groove 3121b. Accordingly, the engaging portion 2223 can still rotate reversely along the second engaging groove 3121b and move back to the first engaging groove 3121a, so as to release the engaging state between the engaging portion 2223 and the engaging element 312, thereby achieving the detachable connection between the frame 220 and the housing 310.

In some embodiments, the connecting element 222 and the engaging element 312 may be interchanged, i.e., the frame 220 may be provided with the engaging element 312 and the housing 310 may be provided with the connecting element 222. For example, the fitting element 312 may be disposed on a side of the extending portion 2222 away from the accommodating space 2202, and the fitting element 312 may still be provided with the first slot 3121a and the second slot 3121b. The connecting element 222 can be disposed on the inner sidewall of the receiving groove 311, and the connecting element 222 can still be disposed with the engaging portion 2223. In this way, when the extending portion 2222 is inserted into the receiving slot 311, the engaging portion 2223 can still be inserted into the mating member 312 along the first engaging slot 3121a, and can rotate relative to the mating member 312 along the second engaging slot 3121b, so as to engage with the mating member 312. Accordingly, the engagement portion 2223 can still be retracted back into the first slot 3121a along the second slot 3121b to release the engagement between the engagement portion 2223 and the mating member 312, so as to achieve the detachable connection between the frame 220 and the housing 310.

Since the engaging portion 2223 can be rotated reversely to release the engaging state between the engaging portion 2223 and the mating member 213, the problem that the normal use of the display module 20 is affected due to the engaging failure between the engaging portion 2223 and the mating member 213 caused by the reverse rotation of the engaging portion 2223 under the external force can be avoided. The display module 20 may further include a resilient member 400, and the resilient member 400 may be disposed between the lens assembly 200 and the main body 300. After the engaging portion 2223 is inserted into the mating member 312 along the first engaging groove 3121a, the elastic member 400 can be elastically deformed and respectively abut against the lens assembly 200 and the main unit 300 to provide an elastic force acting on the engaging portion 2223, so that after the engaging portion 2223 rotates along the second engaging groove 3121b relative to the mating member 312, the elastic member 400 can abut against an inner wall of the second engaging groove 3121b, that is, the mating member 312, under the elastic force of the elastic member 400. In this way, the rotation of the engaging portion 2223 relative to the mating member 312 can be limited by the elastic force of the elastic element 400, and the probability of the engagement failure of the engaging portion 2223 and the mating member 312 under the action of external force can be reduced.

As shown in fig. 9 and 12, the elastic element 400 may be an elastic sealing element, and the elastic element 400 may be disposed between the display lens 210 and the optical engine 320, and not only can be used to provide elastic force to limit the rotation of the engaging portion 2223 relative to the mating element 312, but also can be used to improve the dustproof performance of the display module 20, so as to prevent 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. The elastic element 400 may be disposed on a side of the optical engine 320 close to the display lens 210, that is, close to the light exit 301, and may be fixedly connected to the optical engine 320 by dispensing. Meanwhile, the orthographic projection of the elastic element 400 on the optical engine 320 can also be arranged around the light-emitting surface 321 of the optical engine 320, so as to prevent the elastic element 400 from shielding the light emitted by the optical engine 320. In addition, in order to enable the elastic element 400 to be elastically deformed after the engaging portion 2223 is inserted into the mating element 312, a side of the elastic element 400 facing away from the optical machine 320 may be further protrudingly disposed outside the receiving groove 311. In this embodiment, the elastic member 400 may be made of an elastic material such as foam, rubber, and silica gel, so that the elastic member 400 may not only be elastically deformed, but also have excellent dust-proof performance.

In this way, when the engaging portion 2223 is inserted into the mating member 312 along the first slot 3121a, the display lens 210 on the frame 220 can contact with the side of the elastic member 400 facing away from the optical machine 320. And as the insertion depth of the engaging portion 2223 increases, the display lens 210 may further continue to compress the elastic element 400, so that the elastic element 400 is elastically deformed and abuts against the display lens 210 and the optical engine 320, 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. After the engaging portion 2223 rotates relative to the mating member 312 along the second engaging groove 3121b, the engaging portion 2223 can abut against the inner wall of the second engaging groove 3121b under the elastic force of the elastic element 400, so as to limit the rotation of the engaging portion 2223 relative to the mating member 312, and reduce the probability that the engaging portion 2223 and the mating member 312 are in an engagement failure due to the external force after the engaging portion 2223 is engaged with the mating member 312. Meanwhile, after the inner walls of the engaging portion 2223 and the second engaging groove 3121b are abutted, the elastic member 400 may be in an elastically deformed state, so that not only the firmness of the abutment of the engaging portion 2223 and the second engaging groove 3121b may be improved, but also the dust-proof performance between the display lens 210 and the optical engine 320 may be enhanced by the abutting force (elastic force) generated by the deformation of the elastic member 400. In this embodiment, a side of the elastic member 400 facing away from the optical engine 320 may be in contact with the second explosion-proof membrane 2132 of the display lens 210 (as shown in fig. 12).

Referring to fig. 13 to 15, fig. 13 is a schematic view illustrating a state where the engaging portion 2223 of fig. 9 is inserted into the mating member 312, fig. 14 is another schematic view illustrating a state where the engaging portion 2223 of fig. 13 is inserted into the mating member 312, and fig. 15 is another schematic view illustrating a state where the engaging portion 2223 of fig. 14 is inserted into the mating member 312.

The process of attaching and detaching the frame 220 and the housing 310 will be described in detail below. As shown in fig. 13, when a user needs to assemble the frame 220 and the housing 310, the user may align the engagement portion 2223 of the extension portion 2222 with the first card slot 3121a of the fitting member 312 and insert the extension portion 2222 into the receiving slot 311 such that the engagement portion 2223 may be inserted into the fitting member 312 along the first card slot 3121a with the insertion of the extension portion 2222. In this process, the display lens 210 abuts against the elastic member 400, i.e. the elastic sealing member, on the optical engine 320, and the elastic member 400 provides an elastic force to act on the engaging portion 2223 through the display lens 210, so that the engaging portion 2223 tends to withdraw from the first slot 3121 a.

As shown in fig. 14 to 15, after the engaging portion 2223 is inserted into the first slot 3121a, the user can rotate the frame 220, so that the extending portion 2222 rotates relative to the housing 310, and the extending portion 2222 drives the engaging portion 2223 to rotate relative to the mating member 312 along the second slot 3121b. When the engaging portion 2223 rotates into the second engaging groove 3121b, the engaging portion 2223 can be abutted against the inner wall of the second engaging groove 3121b under the elastic force of the elastic member 400, so that the elastic force provided by the elastic member 400 is utilized to limit the reverse rotation of the engaging portion 2223, thereby realizing the fixed assembly of the frame 220 and the housing 310.

Accordingly, when the user needs to detach the frame 220 and the housing 310, the user may rotate the frame 220 in a reverse direction against the elastic force of the elastic member 400 to withdraw the latching portion 2223 from the second latching slot 3121b to the first latching slot 3121a, so as to release the latching state between the latching portion 2223 and the mating member 312, such that the latching portion 2223 may be withdrawn from the mating member 312 along the first latching slot 3121a, thereby detaching the frame 220 and the housing 310. In the above manner, the frame 220 and the housing 310 may be detachably connected, so that the user may replace the lens assembly 200 and the host computer 300 as desired.

Referring to fig. 16 to 17, fig. 16 is a state diagram illustrating that the engaging portion 2223 of fig. 15 is inserted into the mating member 312 in one embodiment, and fig. 17 is a state diagram illustrating that the engaging portion 2223 of fig. 15 is inserted into the mating member 312 in another embodiment.

In some embodiments, in order to further improve the assembling firmness of the frame 220 and the housing 310, the connecting element 222 may further be provided with a position-limiting portion 2224, and the engaging element 312 may further be provided with a position-limiting groove 3122. As shown in fig. 16, the position-limiting portion 2224 may be disposed on the engaging portion 2223, and the position-limiting portion 2224 may be disposed opposite to the inner side wall of the second engaging groove 3121b. The limiting groove 3122 may communicate with the second catching groove 3121b, and the limiting groove 3122 may be disposed on an inner sidewall of the second catching groove 3121b. In this way, when the engaging portion 2223 rotates along the second engaging groove 3121b relative to the mating member 312 and abuts against the inner wall of the second engaging groove 3121b under the elastic force of the elastic element 400, the position-limiting portion 2224 may be disposed in the position-limiting groove 3122 and engage with the inner wall of the position-limiting groove 3122, so as to further limit the reverse rotation of the engaging portion 2223 relative to the mating member 312, and improve the assembly firmness of the frame 220 and the housing 310. Accordingly, when the frame 220 and the housing 310 need to be detached, a user may apply a force to the frame 220 to compress the elastic element 400, so that the limiting portion 2224 is withdrawn from the limiting groove 3122, and then rotate the frame 220 to withdraw the engaging portion 2223 into the first engaging groove 3121a, so as to release the engaging state between the engaging portion 2223 and the engaging element 312, thereby detaching the frame 220 and the housing 310.

In some embodiments, the positions of the limiting portion 2224 and the limiting groove 3122 may be interchanged, that is, the side of the engaging portion 2223 disposed opposite to the inner side wall of the second engaging groove 3121b may be provided with the limiting groove 3122, and the side of the second engaging groove 3121b corresponding to the limiting groove 3122 may be provided with the limiting portion 2224. In this way, when the engaging portion 2223 abuts against the inner wall of the second engaging groove 3121b, the position limiting portion 2224 may be still disposed in the position limiting groove 3122, so that the reverse rotation of the engaging portion 2223 is limited, thereby improving the assembly firmness of the frame 220 and the housing 310.

In some embodiments, the elastic member 400 may not be limited to an elastic sealing member, but may be used only for providing elastic force to achieve abutment of the engaging portion 2223 and the mating member 312, without having dustproof performance. As shown in fig. 17, the elastic element 400 may also be an elastic pad made of an elastic material such as soft plastic, rubber, or silicon, and the elastic element 400 may be disposed in the second locking groove 3121b. After the engaging portion 2223 is inserted into the mating member 312 along the first engaging groove 3121a, the engaging portion 2223 may abut against the elastic member 400 in the second engaging groove 3121b, so that the elastic member 400 is elastically deformed. When the engaging portion 2223 rotates along the second engaging groove 3121b relative to the mating member 312, the engaging portion 2223 can abut against the inner wall of the second engaging groove 3121b under the elastic force of the elastic element 400.

In some embodiments, the elastic element 400 may also be a metal elastic sheet or a spring, and the elastic element 400 may also be disposed in the second slot 3121b, only after the engaging portion 2223 is inserted into the mating element 312, the elastic element 400 can elastically deform in contact with the engaging portion 2223. In addition, in some embodiments, the elastic element 400 may not be limited to be disposed in the second card slot 3121b, but may also be disposed at other positions of the frame 220 or the housing 310, and only after the engaging portion 2223 is inserted into the mating element 312, the elastic element 400 can elastically deform against the frame 220 and the housing 310 to provide an elastic force to act on the frame 220 or the housing 310.

Referring to fig. 18, fig. 18 is a schematic view illustrating a state where the engagement portion 2223 of fig. 15 is inserted into the mating member 312 according to another embodiment.

In some embodiments, the connector 222 can also be directly detachably connected to the fitting member 312 after being inserted into the fitting member 312 without being rotated. As shown in fig. 18, the connecting member 222 may be a catching portion 2223, and the catching portion 2223 may be provided with a groove G. The inner side wall of the groove G may have a slope. The fitting member 312 may be provided with a first catching groove 3121a, a projection H, and a spring T. Wherein, can offer on the inside wall of first draw-in groove 3121a and dodge groove F, lug H and spring T can set up in dodging groove F, and spring T's one end can be connected with lug H, and the other end can be connected with the diapire of dodging groove F, and lug H can set up outside dodging groove F in spring T's effect under the evasion. The opposite sides of the projection H may also have slopes.

When the engaging portion 2223 is inserted into the first engaging groove 3121a, the engaging portion 2223 may contact with the inclined surface on one side of the protrusion H, and push the protrusion H through the inclined surface, so that the protrusion H compresses the spring T to recede into the receding groove F, thereby providing a receding space for the insertion of the engaging portion 2223 into the first engaging groove 3121 a. After the connecting frame 22 is inserted to a predetermined position, the protrusion H can rebound to the groove G of the connecting member 222 under the action of the spring T to be clamped with the connecting member 222. In addition, to increase the clamping strength, the spring T may be in a compressed state at all times to abut against the protrusion H and the connecting member 222. When the connecting member 222 and the mating member 312 need to be detached, the user can pull the connecting member 222 outwards against the elastic force of the spring T, so that the inclined surface of the other opposite side of the protrusion H abuts against the inclined surface in the groove G, and thus the protrusion H is pushed to compress the spring T to retreat into the escape groove F, thereby providing an escape space for the connecting member 222 to retreat from the first engaging groove 3121 a. In this manner, the detachable connection is achieved even if the connector 222 is not rotated after being inserted into the fitting member 312.

In some embodiments, a layer of rubber sleeve may be disposed on an outer surface of the latching portion 2223, so that after the latching portion 2223 is inserted into the first slot 3121a, the rubber sleeve may interfere with the latching portion 2223 and an inner wall of the first slot 3121a to generate a friction force to limit the latching portion 2223 from being withdrawn from the first slot 3121 a. Of course, the user may insert the catching portion 2223 into the first catching groove 3121a against the frictional force or pull the catching portion 2223 out of the first catching groove 3121 a.

Referring to fig. 19 to 21, fig. 19 is a schematic structural diagram of a dust cap 30 according to an embodiment of the present application, fig. 20 is a schematic structural diagram of a connection structure between an ear hook 40 and a host 300 according to an embodiment of the present application, and fig. 21 is a schematic structural diagram of a cross section of the dust cap 30, the ear hook 40, and a housing 310 along line iv-iv in fig. 20.

In some embodiments, after the frame 220 and the housing 310 are detached, the optical engine 320 in the accommodating groove 311 may be directly exposed to the external environment, and in order to avoid entering dust in the accommodating groove 311 from affecting the imaging effect of the optical engine 320 during subsequent use, the head-mounted device 5 provided in this embodiment of the present application may further be provided with a dust cover 30. As shown in fig. 19, the dust cover 30 may be provided with a cover 31 and the connecting member 222 in the foregoing embodiments, and the connecting member 222 may be provided on the cover 31. When the frame 220 and the housing 310 are disassembled, the dust cap 30 can be detachably connected to the housing 310 by the connector 222, and the assembling and disassembling 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 engaging member 312 on the housing 310, the cover 31 of the dust cap 30 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, thereby achieving the detachable connection of the dust cap 30 and the housing 310. In some embodiments, when the housing 310 is provided with the connector 222, the dust cap 30 may also be provided with a fitting 312 to removably connect with the connector 222 on the housing 310.

In some embodiments, a speaker or other functional devices may be disposed in the host 300, so that the host 300 may also have a function of a headset. In this way, when the frame 220 and the housing 310 are detached and the housing 310 is connected to the dust cap 30, the main body 300 can also be used as a headset. Meanwhile, 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 may further be provided with an ear hook 40. As shown in fig. 20 to 21, an end of the ear hook 40 may be detachably connected to a side of the housing 310 facing away from the dust cover 30. For example, one end of the ear hook 40 may be provided with threads 41, and the side of the housing 310 facing away from the dust cover 30 may be provided with a threaded hole 313. The end of the ear hook 40 with the thread 41 can be placed in the threaded hole 313 of the housing 310 and detachably connected to the housing 310. In this way, after the user detaches the frame 220 from the housing 310, the host 300 can be worn on the ear as an earphone by using the ear hook 40, so that the functional diversity of the host 300 is improved, and the head-mounted device 5 can be deformed under different scenes for use.

In some embodiments, the ear-hook 40 and the host 300 can be connected in other detachable manners. For example, the ear hook 40 and the host 300 can be detachably connected by magnetic attraction. Alternatively, the housing 310 may have a certain deformation capability, and the ear hook 40 may be inserted into the housing 310 to elastically deform the housing 310, so that the ear hook 40 is fixed on the housing 310 by the elastic force generated by the deformation of the housing 310. When the user needs to detach the ear hook 40, the user can overcome the elastic force generated by the deformation of the housing 310 to directly pull the ear hook 40 out of the housing 310. In addition, in some embodiments, the manner of detachably connecting the ear hook 40 and the host 300 is not limited to the above manner, and the specific detachable manner may be set according to requirements.

Referring to fig. 22 to 26 in conjunction with fig. 12, fig. 22 is another partial sectional view of the display module 20 of fig. 3 along v-v, fig. 23 is a partial enlarged view of D in fig. 22, fig. 24 is a structural view of the rigid sealing member 500 of fig. 22, fig. 25 is a partial enlarged view of E in fig. 24, and fig. 26 is another partial view of E in fig. 24.

As described in the previous embodiment, in order to realize the total reflection of the optical waveguide sheet 211, the outer surface 2101 and the inner surface 2102 of the optical waveguide sheet 211 are formed with an air layer so that the protective sheet 212 is spaced apart from the optical waveguide sheet 211. As shown in fig. 12, when the display lens 210 and the optical engine 320 are sealed, the elastic element 400 (elastic sealing element) will abut against the second explosion-proof membrane 2132 of the display lens 210 and the optical engine 320, respectively.

In some embodiments, the design of the second protective sheet 2122 and the second burst disk 2132 can be eliminated in order to reduce the thickness and weight of the stack of display lenses 210. At this time, if the display lens 210 and the host 320 are sealed as in the previous embodiment, the elastic member 400 is in contact with the optical waveguide sheet 211 and the optical device 320, respectively, so that the air layer formed on the inner surface 2102 of the optical waveguide sheet 211 is broken by the sealing member 400, thereby affecting the total reflection of the optical waveguide sheet 211. Accordingly, the display module 20 may be further provided with a rigid sealing member 500 so that the second protective sheet 2122 and the second rupture film 2132 may be omitted and the display lens 210 and the main unit 320 may be sealed.

As shown in fig. 22 to 24, the rigid sealing member 500 may be disposed between the elastic member 400 and the optical waveguide sheet 211, and the rigid sealing member 500 may also be respectively abutted against the elastic member 400 and the optical waveguide sheet 211, so that the elastic member 400 may be elastically deformed to provide an elastic force acting on the frame 220, thereby achieving the fixed assembly of the frame 220 and the housing 310. In this case, the side of the rigid sealing member 500 that abuts against the optical waveguide sheet 211 may have a rough surface, i.e., an uneven surface. When the rigid sealing member 500 is abutted against the optical waveguide sheet 211 by the elastic member 400, a corresponding gap 501 is formed between the optical waveguide sheet 211 and the rigid sealing member 500, so that a minute air layer is formed between the inner surface 2102 of the optical waveguide sheet 211 and the rigid sealing member 500 by the gap 501 to achieve total reflection of the optical waveguide sheet 211. Therefore, the second protection sheet 2122 and the second explosion-proof film 2132 can be omitted to reduce the thickness and weight of the stack of the display lens 210, and the optical waveguide sheet 211 and the optical machine 320 can be sealed without affecting the total reflection of the optical waveguide sheet 211, so as to improve the dustproof performance of the display module 20.

The side of the rigid sealing member 500 abutting the optical waveguide sheet 211 may be provided with a plurality of protrusions 510 to form an uneven roughened surface on the rigid sealing member 500. Meanwhile, in order to reduce the probability of external dust or water stain entering between the optical waveguide sheet 211 and the optical engine 320 through the gap 501, the plurality of protrusions 510 may be densely distributed on the rigid sealing member 500. As shown in fig. 25, the protrusions 510 may be bumps 511, and a plurality of bumps 511 may be staggered between two bumps on the rigid sealing member 500, so as to extend the path of the gap 501 communicating with the outside of the display module 20, and reduce the probability that external dust or water stain directly enters between the optical waveguide sheet 211 and the optical engine 320 through the gap 501. In addition, as shown in fig. 26, the protrusion 510 may also be an annular protruding rib 512, and a plurality of annular protruding ribs 512 may be arranged on the rigid sealing member 500 in a surrounding manner and at intervals, so as to repeatedly partition the gap 501, thereby dividing the gap 501 into a plurality of sub-gaps which are not communicated, 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 the protruding point 511 or the annular protruding rib 512, and the shape may be set according to the requirement, and only a plurality of protrusions 510 are required to form a rough surface on the side of the rigid sealing member 500 close to the optical waveguide sheet 211.

Further, the orthographic projection of the rigid sealing member 500 on the optical engine 320 can also be disposed around the light emitting surface 321 of the optical engine 320, so as to prevent the rigid sealing member 500 from shielding the light emitted by the optical engine 320. Meanwhile, in order to enable the elastic member 400 to be elastically deformed, a side of the rigid sealing member 500 facing away from the elastic member 400 may also be protrudingly disposed outside the receiving groove 311, so that when the frame 220 is assembled to the housing 310, the display lens 210 may compress the elastic member 400 through the rigid sealing member 500. Accordingly, since the design of the second protective sheet 2122 and the second explosion-proof film 2132 is eliminated, in order to secure an air layer on the inner surface 2102 of the optical waveguide sheet 211, the aforementioned second sealant 2162 may be disposed between the optical waveguide sheet 211 and the annular ledge 221, so that the optical waveguide sheet 211 and the main body portion 2221 are spaced apart by the thickness of the second sealant 2162 while the optical waveguide sheet 211 and the annular ledge 211 are bonded. In addition, in order to improve the dustproof effect, the display module 20 may be further provided with an electrostatic coil 600 for adsorbing small particles of dust. As shown in fig. 23, the electrostatic coil 600 may be disposed on the inner sidewall of the receiving groove 311, and the electrostatic coil 600 may be disposed on the periphery of the optical engine 320. In this way, while the convex points 511 or the annular convex ridges 512 on the rigid sealing member 500 are used for blocking large-particle dust, the electrostatic coil 600 can be used for adsorbing small-particle dust, so as to improve the dust-proof performance of the display module 20.

Referring to fig. 27, fig. 27 is another schematic structural diagram of a head-mounted device 5 according to an embodiment of the present disclosure.

In some embodiments, the display module 20 may also be integrated on the wearable stand 10, and together with the wearable stand 10, form an integrated head-mounted device 5. As shown in fig. 27, the display lens 210 may be disposed on the frame 110 as the functional lens, and the display lens and the frame may still be fixedly connected by adhesion, snap-fit, interference fit, or the like. The optical engine 320 may also be disposed in the frame 110 and disposed opposite to the display lens 210, so that the display lens 210 and the optical engine 320 cooperate to realize a virtual reality function or an augmented reality function. For example, the area where the frame 110 is connected to the temple 120 may be provided with a receiving cavity for receiving the optical engine 320, and the receiving cavity may further communicate with the display lens 210 on the frame 110, so that the display lens 210 and the optical engine 320 may be oppositely disposed to realize the functions of virtual reality or augmented reality. Accordingly, the elastic member 400 and the rigid sealing member 500 can still be disposed between the display lens 210 and the optical device 320, so as to reduce the thickness and weight of the display lens 210 and ensure the dustproof performance of the display module 20. The difference from the externally-hung head-mounted device 5 is that the lens assembly 200 of the present embodiment may be provided with only the display lens 210, and the main unit 300 may be provided with only the optical engine 320. The display lens 210 may be secured to the frame 110 by, for example, adhesive, snap-fit, or fusion. The optical engine 320 may also be fixed in the accommodating cavity of the temple 120 by bonding, clipping, or welding.

The display module 20 provided by the embodiment of the present application is configured with the connecting member 222 on one of the lens assembly 200 and the host 300, and the other one is configured with the fitting member 312, and the connecting member 222 can be detachably connected with the fitting member 312 after being inserted into the fitting member 312, so that the lens assembly 200 and the host 300 can be detachably connected by using the connecting member 222 and the fitting member 312. In this way, the user can replace the lens assembly 200 or the host 300 as desired.

The above description is only a part of the embodiments of the present application, and not intended to limit the scope of the present application, and all equivalent devices or equivalent processes performed by the content of the present application and the attached drawings, or directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims

1. The utility model provides a display module assembly, its characterized in that, display module assembly includes: a display lens, a host, and a rigid seal;

the display lens is connected with the host, and an optical waveguide sheet is arranged on the display lens; the optical waveguide sheet is configured to present a virtual reality or augmented reality environment under control of the host; the rigid sealing member is disposed between the optical waveguide sheet and the host, and is in contact with the optical waveguide sheet and the host, respectively, and a side of the rigid sealing member adjacent to the optical waveguide sheet is further configured to have a rough surface.

2. A display module according to claim 1, wherein the rigid sealing member has a plurality of protrusions formed on a side thereof adjacent to the optical waveguide sheet so that the side thereof adjacent to the optical waveguide sheet has a rough surface.

3. The display module of claim 2, wherein the protrusions are configured as bumps, and a plurality of the bumps are staggered on the rigid seal.

4. The display module of claim 2, wherein the protrusions are configured as annular ribs, and a plurality of the annular ribs are circumferentially and spaced apart from each other on the rigid seal.

5. The display module assembly of claim 2, wherein the display module assembly is further provided with an elastic sealing member;

the elastic sealing element is arranged between the rigid sealing element and the host and is respectively abutted against the rigid sealing element and the host.

6. The display module according to claim 5, wherein the display module is further provided with a frame;

the frame is connected with the host; the display lens is arranged on the frame and is opposite to the host; the display lens is provided with the protection sheet of range upon range of setting with the optical waveguide piece, just the protection sheet is located the optical waveguide piece deviates from one side of host computer.

7. The display module assembly of claim 6, wherein the host is provided with a housing and an optical engine;

the housing is provided with an accommodating groove, and the optical machine is arranged in the accommodating groove; the frame is connected with the shell; the optical waveguide piece lid is located the holding tank to with the ray apparatus sets up relatively, just the optical waveguide piece is configured to can be in present virtual reality or augmented reality environment under the control of ray apparatus.

8. The display module assembly according to claim 7, wherein the host is further provided with an electrostatic coil, and the electrostatic coil is disposed on a sidewall of the accommodating groove and adjacent to the optical engine; wherein the electrostatic coil is configured to adsorb dust.

9. A head-mounted device, characterized in that the head-mounted device comprises: the display module is provided with a display lens, a host and a rigid sealing piece;

the display lens is connected with the host, and an optical waveguide sheet is arranged on the display lens; the optical waveguide sheet is configured to present a virtual reality or augmented reality environment under control of the host; the host is connected with the wearing bracket; the rigid sealing member is disposed between the optical waveguide sheet and the host, and is in contact with the optical waveguide sheet and the host, respectively, and a side of the rigid sealing member adjacent to the optical waveguide sheet is further configured to have a rough surface so that a gap is formed between the optical waveguide sheet and the rigid sealing member.

10. The utility model provides a display module assembly which characterized in that, display module assembly includes: a display lens, a frame, a host, and a rigid seal;

the display lens is arranged on the frame, and the frame is connected with the host; the display lens is also provided with an optical waveguide sheet; the optical waveguide sheet is configured to present a virtual reality or augmented reality environment under control of the host; the rigid sealing member is arranged between the optical waveguide sheet and the host machine and is respectively contacted with the optical waveguide sheet and the host machine, and one side of the rigid sealing member close to the optical waveguide sheet is also configured to be provided with a rough surface so as to form a gap between the optical waveguide sheet and the rigid sealing member;

one of the frame and the host is provided with a connecting piece, and the other one is provided with a matching piece; the connecting piece is configured to be inserted into the fitting and can rotate relative to the fitting after being inserted into the fitting, and the connecting piece is also configured to be clamped with the fitting after rotating relative to the fitting.