Head-mounted display device

Abstract

The utility model discloses a head-mounted display device, relating to the technical field of electronic equipment, the head-mounted display device comprises a first support member and a main board, the upper side of the first support member is symmetrically provided with two first support parts, the two first support parts are connected through a connecting frame, and the connecting frame is provided with a second support part. The connecting frame inclines downwards from the two ends connected with the first supporting parts to the middle of the connecting frame and forms a supporting groove, the main plate is arranged on the first supporting piece and comprises two opposite first hard plate sets and a first flexible plate part, and the two first hard plate sets are installed on the two first supporting parts respectively. The first flexible plate part is located on the upper portion of the connecting frame and connected with the two first hard plate sets through the two opposite ends of the first flexible plate part, and the lower side face of the first flexible plate part is supported by the groove wall of the supporting groove so that the first flexible plate part can be arranged downwards in an inclined mode from the two opposite ends of the first flexible plate part to the middle. According to the equipment, the mounting position and space of the first supporting piece in the length direction are fully utilized, and the purpose of reducing the wearing burden of a user is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic devices, and particularly relates to a head-mounted display device. Background Art

[0002] A head-mounted display device (HMD), that is, a head-mounted display, is a wearable display device worn on the head, usually in the form of glasses, a helmet or a head-mounted device. By sending optical signals to the eyes, this device can achieve different effects such as virtual reality (VR), augmented reality (AR), and mixed reality (MR), providing users with an immersive visual experience.

[0003] Currently, with the development of technology, head-mounted display devices are becoming smaller and lighter. However, this has also led to less and less installation space reserved inside the head-mounted display devices, making the development of miniaturization and lightweight of head-mounted display devices fall into a bottleneck. The structure of the display device is too cumbersome, and it is also difficult to further improve the user's wearing experience. Summary of the Utility Model

[0004] The purpose of the embodiments of the utility model is to provide a head-mounted display device, which can solve the above problems existing in the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] Provide a head-mounted display device, including:

[0007] A first support member, on the upper side of which two first support portions are symmetrically arranged. A connecting frame is connected between the two first support portions. The connecting frame inclines downward from the two ends respectively connecting the first support portions towards the middle thereof and forms a support groove.

[0008] A main board is arranged on the first support member. The main board includes two opposite first rigid board groups and a first flexible board portion. The two first rigid board groups are respectively installed on the two first support portions. The first flexible board portion is located above the connecting frame and is connected to the two first rigid board groups through its opposite ends respectively. The lower side surface of the first flexible board portion is supported by the groove wall of the support groove, so that the first flexible board portion is inclined downward from its opposite ends towards the middle.

[0009] Based on the ergonomic design, the first support member is more suitable for the human facial structure, improving the user's wearing comfort. On this basis, the space utilization rate of the first support member is improved, and the main board adopts the form of a rigid-flexible combination board, improving the layout freedom of the main board on the first support member.

[0010] As an alternative embodiment, connection brackets are respectively provided at one ends of the two first support portions facing away from the connection frame, and the connection brackets are used to provide connection positions for connecting the wearing components to the first support members;

[0011] The connection brackets incline downward from the end connected to the first support portions towards the end facing away from the first support members, and connection portions for connecting the wearing components are formed at their ends.

[0012] The arrangement of the connection brackets enables the structure of the first support members to better fit the human facial structure. While improving the wearing comfort of the user, it ensures the wearing stability of the head-mounted display device and meets the usage requirements of the user.

[0013] As an alternative embodiment, at least one second support portion is further provided on the upper side of the connection brackets, and the second support portion and the first support portion form a stepped structure;

[0014] The main board further includes at least two second rigid board portions and a second flexible board portion. The second rigid board portions are respectively arranged on the second support portions, and the first rigid board group is connected to the second rigid board portions through the second flexible board portion.

[0015] On the basis of using the connection brackets to improve the fit between the first support members and the human face, the spatial position of the first support members in their length direction is further developed, and the layout freedom of the main board is improved.

[0016] As an alternative embodiment, a third support portion adjacent to the second support portion is further provided on the connection brackets. The third support portion is located on the front side or the rear side of the connection brackets, and the third support portion and the second support portion form a bent structure;

[0017] The main board further includes two third rigid board portions and a third flexible board portion. The two third rigid board portions are respectively arranged on the third support portions, and the third rigid portions are connected to the second rigid board portions through the third flexible board portion.

[0018] On the basis of using the connection brackets to improve the fit between the first support members and the human face, the spatial position of the first support members in their width direction is further developed, and the layout freedom of the main board is improved.

[0019] As an alternative embodiment, two fourth support portions are respectively provided between the connection frame and the support grooves and the first support portions. The heights of the first support portions, the fourth support portions, and the support grooves decrease in sequence, so that the fourth support portions and the first support portions and the support grooves respectively form stepped structures;

[0020] The main board further includes two fourth hard board portions and a fourth flexible board portion. The two fourth hard board portions are respectively arranged on each of the fourth supporting portions. The first hard board group is connected to the fourth hard board portion through the fourth flexible board portion.

[0021] On the basis of utilizing the connecting frame to improve the fit between the first supporting member and the human face, the spatial position of the first supporting member in its length direction and thickness direction is further developed to enhance the layout freedom of the mainboard.

[0022] As an optional embodiment, the first support member is provided with a stacking area on the first support portion, the first hard plate group includes a first hard plate portion and a fifth hard plate portion, the fifth hard plate portion is provided on the first support portion, and the first hard plate portion is stacked on a side of the fifth hard plate portion facing away from the first support portion;

[0023] The first rigid plate portion and the fifth rigid plate portion are connected via a fifth flexible plate portion. One end of the fifth flexible plate portion is connected to the fifth rigid plate portion, and the other end of the fifth flexible plate portion is folded upward to a side of the fifth rigid plate portion away from the first supporting portion and connected to the first rigid plate portion.

[0024] The first flexible board portion is respectively connected to the two first hard board portions or the fifth hard board portion.

[0025] This fully utilizes the installation space in the thickness direction of the head-mounted display device, and the display unit directly converts signals through the motherboard, reducing the space occupied by the display unit and the motherboard in the width direction of the head-mounted display device.

[0026] As an optional embodiment, the first hard plate portion and the first support member are adhesively connected via an adhesive, one end of the adhesive is adhered to a side of the first hard plate portion facing away from the fifth hard plate portion, and the other end of the adhesive is adhered to the first support member.

[0027] The flexible connecting wire and the adhesive component jointly constrain the first hard plate portion, thereby improving the stability of the first hard plate portion on the fifth hard plate portion and preventing the first hard plate portion from shaking or even loosening during use of the head-mounted display device.

[0028] As an optional implementation, it also includes:

[0029] a second support member, the second support member being detachably mounted on the first support member, the second support member being located on a side of the first support member facing away from the first support portion, and a display unit being disposed between the first support member and the second support member;

[0030] The display unit is connected to the fifth hard board portion through a flexible connecting line, one end of the flexible connecting line is connected to the display unit, and the other end of the flexible connecting line is folded upward between the first hard board portion and the fifth hard board portion, and is electrically connected to the first hard board portion or the fifth hard board portion.

[0031] The display unit is constrained in the accommodation groove by the first supporting member and the second supporting member, thereby improving the positioning accuracy of the display unit in all directions.

[0032] As an optional embodiment, the first support member is provided with a threading opening passing through two opposite sides of the first support portion;

[0033] The flexible connection line is folded upward from the display unit through the threading opening to connect to the fifth hard board part.

[0034] By utilizing the installation space provided by the support structure in the length direction, the space occupancy of the flexible connecting line in the width direction is reduced to the greatest extent, making the structure of the head-mounted display device more compact.

[0035] As an optional embodiment, the second support member is provided with light-transmitting openings passing through two opposite sides thereof;

[0036] The head-mounted display device further includes:

[0037] A display lens is installed on a side of the second support member away from the display unit, and the display unit faces the display lens through the light-transmitting port.

[0038] The beneficial effects of the present invention are as follows: the head-mounted display device utilizes the upper side of the first support member to provide a mounting position for the mainboard, fully utilizing the mounting position and space of the first support member in the length direction, and also reducing the space occupied by the display unit and the mainboard relative to the head-mounted display device in the width direction, thereby reducing the wearing burden of the user;

[0039] The first support member is arranged downwardly between the two first support portions, so that the structure of the first support member can better fit the human body structure. While improving the wearing comfort of the user through ergonomic design, unnecessary design of the first support member is reduced, which is conducive to the miniaturization of the device and more convenient for the user to wear and store in daily life.

[0040] The first hard board group and the first flexible board portion are both located on the upper side of the first support member, which facilitates the disassembly and assembly of the main board. At the same time, the first flexible board portion can be supported by the support groove along with the connecting frame structure, allowing the main board to fit the structural design of the first support member, thereby improving the structural compactness of the head-mounted display device and facilitating the miniaturization and lightweight design of the head-mounted display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0042] Figure 1 One of the exploded views of the head-mounted display device according to an embodiment of the present utility model;

[0043] Figure 2 is Figure 1 an enlarged view of part A of

[0044] Figure 3 Another exploded view of the head-mounted display device according to an embodiment of the present utility model;

[0045] Figure 4 A partial structural schematic diagram of the head-mounted display device according to an embodiment of the present utility model;

[0046] Figure 5 is Figure 4 a cross-sectional view of

[0047] Figure 6 A structural schematic diagram of the first support member according to an embodiment of the present utility model;

[0048] Figure 7 One of the structural schematic diagrams of the main board according to an embodiment of the present utility model;

[0049] Figure 8 Another structural schematic diagram of the main board according to an embodiment of the present utility model.

[0050] In the figure: 10, the first support member; 11, the first support portion; 12, the connecting frame; 121, the support groove; 13, the connecting bridge; 131, the connecting portion; 14, the second support portion; 15, the third support portion; 16, the fourth support portion; 17, the wire passing hole; 20, the main board; 21, the first hard board group; 211, the first hard board portion; 212, the fifth hard board portion; 213, the wire harness female seat; 22, the first flexible board portion; 23, the second hard board portion; 24, the second flexible board portion; 25, the third hard board portion; 26, the third flexible board portion; 27, the fourth hard board portion; 28, the fourth flexible board portion; 29, the fifth flexible board portion; 30, the bonding member; 40, the second support member; 41, the light-transmitting opening; 50, the display unit; 60, the flexible connecting wire. Detailed implementation manners

[0051] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present utility model clearer, the technical solutions of the embodiments of the present utility model will be further described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present utility model.

[0052] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0053] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above", and "on the top" of the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "below", and "under the bottom" of the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the first feature is at a lower horizontal height than the second feature.

[0054] A head-mounted display device is a broad concept that encompasses a variety of products, which provide users with experiences such as virtual reality (VR), augmented reality (AR), or mixed reality (MR) through different technologies and designs.

[0055] In general, the main body of a head-mounted display device consists of a device main body (such as the eyepiece of a VR device, the frame of an AR glasses, etc.) and an optical engine module disposed within the device main body. As the basic structure of the head-mounted display device, the device main body is stably worn on the human head through wearing components and is used to support the optical engine module and other electronic devices. Therefore, the design of the device main body determines the volume, wearing comfort, and even the overall performance of most head-mounted display devices. The optical engine module is a key component in the head-mounted display device, responsible for converting image or video signals into visible optical signals and projecting them into the user's eyes through a lens. It usually includes a display screen, an optical lens, an illumination system, and related electronic control components. The display screen is responsible for displaying image or video content, the optical lens is responsible for magnifying the image and projecting it into the user's field of view, the illumination system provides sufficient light to illuminate the display screen, and the electronic control components are responsible for adjusting parameters such as the brightness and contrast of the image.

[0056] However, it can be learned from the background art that currently, with the development of technology, head-mounted display devices are becoming smaller and lighter. In order to fit the human facial structure, existing AR glasses set the main board as a slender PCB structure. The main board is installed inside the device main body and is respectively connected to the optical engine modules at the double lenses. The main board drives the operation of the optical engine modules to realize the operation of the AR glasses. However, when the AR glasses adopt the above traditional scheme, the upper frame structure can only be set as a flat structure to match the main board, resulting in a single shape. It is impossible to set multiple curved shapes with reference to ordinary glasses, sunglasses, etc., resulting in an overly cumbersome and redundant structure of the display device, and it is difficult to further improve the user's wearing experience.

[0057] In view of this, the present embodiment provides a head-mounted display device, which solves a series of technical problems such as the decrease in wearing comfort caused by the large volume of the device and the disadvantage of being not conducive to long-term wearing by the user by changing the support structure of the head-mounted display device.

[0058] Please refer to the accompanying Figures 1 - 7 description. The head-mounted display device includes a first support member 10, which is one of the support bases for the related components of the head-mounted display device and mainly functions to connect and support related components and functional modules.

[0059] Specifically, in the specific application scenario of the head-mounted display device, the first support member 10 can adopt a structure similar to a support beam. By cooperating with the device housing, etc., it is horizontally placed at a position close to the height of the user's eyebrow bone in the wearing state to connect the wearing components at both ends of the head-mounted display device, as well as other components and functional modules (usually including but not limited to the display unit 50, camera, etc.), forming a stable overall structure.

[0060] It can be understood that in order to reduce the weight of the head-mounted display device and improve the wearing comfort, the first support member 10 is usually made of a light and high-strength material, such as magnesium alloy, aluminum alloy, etc., so that the head-mounted display device has good mechanical properties, as well as good corrosion resistance and wear resistance, providing certain protection for the components, electronic components, optical components, etc. inside the head-mounted display device.

[0061] As can be seen from the above content, in the head-mounted display device, the first support member 10 is not only a simple structural beam component, but also closely cooperates with other components of the device (such as the display unit 50, camera, sensor, etc.) to jointly realize various functions of the head-mounted display technology.

[0062] Specifically, two first support portions 11 are symmetrically arranged along the length direction on the upper side of the first support member 10. The first support member 10 can provide corresponding installation positions for the relevant components and functional modules in the head-mounted display device through the first support portions 11, so that the relevant components and functional modules can form a relatively stable cooperation relationship with the first support member 10 through the corresponding support portions. In this embodiment, the portion connected by the first support member 10 between the two first support portions 11 is defined as the connecting frame 12, and the two first support portions 11 are connected by the connecting frame 12. In the actual application scenario of the head-mounted display device, the connecting frame 12 can be used to provide an installation space for a module component associated with the display device. For example, an image acquisition module, a motion measurement module, a positioning module, etc. can be provided on the connecting frame 12, but are not limited thereto.

[0063] As can be seen from the above content, when the head-mounted display device is in a state of being worn on the user's head, the height positions of the two first support portions 11 are at or substantially close to the positions corresponding to the user's eyebrows. The first support portions  11 are located above the user's eyes and can avoid interfering with the user's line of sight, that is, the two first support portions 11 are located on the opposite sides of the user's eyebrows. Affected by the characteristics of the human facial structure (the human nose bridge is located below the eyebrows), in order to enable the first support member 10 (connecting frame 12) to be supported by the user, the connecting frame 12 of this embodiment is set to a structure that slopes downward from the two ends connecting the first support portions 11 to the middle and forms a support groove 121. The height of the connecting frame 12 gradually decreases from both ends to the middle, so that the middle of the connecting frame 12 can be below the eyebrows and close enough to the wearer's nose bridge when the head-mounted display device is in a worn state. The support groove 121 on the connecting frame 12 also serves to avoid the slightly raised part of the user's eyebrows, making the head-mounted display device more conform to the human facial structure. While improving the user's wearing comfort by using ergonomic design, other unnecessary designs on the first support member 10 are reduced, and the burden on the user's head can also be reduced, facilitating the user's daily wearing and storage.

[0064] Specifically, while the first support portion 11 is used to provide a corresponding installation position for the main board 20 of the head-mounted display device, it can also provide a certain installation space for the display unit 50 in the head-mounted display device, enabling the main board 20 and the display unit 50 to be arranged adjacent to each other in the device, so as to shorten the length of the connection line and improve the structural compactness.

[0065] It should be understood that the main board 20 is the core carrier of electronic components in the head-mounted display device, and it is not limited to including modules such as a processor, a memory, and a communication module. The display unit 50 is the screen part that directly or indirectly displays images and information to the user. Based on the above content, it can be explained that the display unit 50 generally belongs to a part of the optical engine module, and it can but is not limited to using display technologies such as LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode Display), or other types.

[0066] Generally speaking, the display unit 50 needs to be connected to the main board 20, and the conversion of electronic signals and image signals is carried out through a screen transfer board pair arranged between the main board 20 and the display unit 50. After the display unit 50 receives the corresponding image signal, it is converted into a visible optical image. The two can be connected through a connection line (such as the flexible connection line 60 described in the subsequent content of this embodiment), and the connection line is used to transmit signals and data between the main board 20 and the display unit 50, such as image signals, control signals, etc.

[0067] Continuing from the above embodiment, as Figures 1 - 8 shown, on the basis of being arranged on the first support member 10, the main board 20 includes a first rigid board group 21 and a first flexible board portion 22. Specifically, the main board 20 can be a rigid-flex board (Rigid-Flex Board). The rigid-flex board combines the flexibility and bendability of flexible printed circuits (FPC), flexible flat cables (FFC), etc. with the rigidity and stability of rigid printed circuits (PCB), enabling the circuit board to carry heavier components while maintaining flexibility and optimizing the internal space layout. It should be noted that the first rigid board group 21 in the embodiment of the present invention includes but is not limited to only arranging one rigid board portion, and any rigid board portion mentioned in this embodiment is not limited to a rigid printed circuit (PCB), and can also be a rigid-flex board (Rigid-Flex Board) or a flexible printed circuit (FPC) integrated with electronic components, etc., which are circuit board structures not suitable for free bending.

[0068] Among them, in this embodiment, the number of the first rigid plate groups 21 is the same as that of the first support parts 11, both being two, while the first flexible plate part 22 is provided as one. The two first rigid plate groups 21 are respectively installed on the two first support parts 11 of the first support member 10. The first flexible plate part 22 is located above the connecting frame 12 and is connected to the two first rigid plate groups 21 through its opposite ends respectively. The support groove 121 structure formed by the connecting frame 12 is provided to be formed by at least two groove walls. The groove walls of the support groove 121 can provide a support surface for the first flexible plate part 22 on the first support member 10. On the premise of the structure that the connecting frame 12 inclines downward towards the middle, it is generally in a "V" shape as a whole. When the groove walls are two, one ends of the two groove walls are respectively connected to the two first support parts 11, and the other ends are connected to each other and are arranged at an angle. When the groove walls are three, one ends of the two groove walls facing away from each other are respectively connected to the first support parts 11, and the two groove walls are arranged obliquely relative to each other. The other groove wall can be horizontally arranged between the two groove walls and its two ends are respectively connected to the closer ends of the two groove walls, and so on.

[0069] Through the above setting method, both the first rigid plate group 21 and the first flexible plate part 22 are located on the upper side of the first support member 10. In addition to facilitating the daily inspection and maintenance of the main board 20, it also reduces the disassembly and assembly difficulty of the main board 20 on the first support member 10, reduces the production cost and maintenance cost of the head-mounted display device. Moreover, such a setting also helps to reduce the influence of the related module components of the head-mounted display device on the layout of the main board 20, which is beneficial to the miniaturization and lightweight design of the head-mounted display device.

[0070] In the above embodiment, the distance between the two first rigid plate groups 21 needs to be determined according to the design requirements of the head-mounted display device to ensure that the two first rigid plate groups 21 can be accurately installed on the two first support parts 11. Thus, under the support of the groove walls of the support groove 121 for the lower side surface of the first flexible plate part 22, the first flexible plate part 22 also inclines downward from its opposite ends towards the middle direction along with the connecting frame 12, ensuring the matching installation of the main board 20 and the first support member 10, without interfering with other structural parts of the head-mounted display device, improving the utilization rate and compactness of the internal space of the device, making full use of the installation position and space of the first support member 10 in the length direction, reducing the space occupied by the display unit 50 and the main board 20 in the width direction of the head-mounted display device, reducing the torque exerted by the head-mounted display device on the user's head, reducing the burden on the user during wearing, and prolonging the wearing time.

[0071] In addition, the connecting frame 12 in the head-mounted display device can also provide relatively sufficient installation positions for the related functional modules of the device. In one embodiment, for example Figures 1 - 6As shown, an image acquisition module is provided in the middle of the connecting frame 12 (below the support groove 121) of this embodiment. By setting the image acquisition module here, in addition to enabling the head-mounted display device to capture a picture that is more in line with the user's first perspective, the image acquisition module can also be set closer to the main board 20, achieving the purpose of shortening the distance between the image acquisition module and the main board 20. This facilitates the connection between the main board 20 and the image acquisition module and further improves the structural compactness of the head-mounted display device, which is beneficial to its miniaturization and compact design purpose.

[0072] Please refer to the attached Figures 1 - 7 As shown, on the basis of the above structure, in one embodiment, connection brackets 13 are respectively provided at the ends of the two first support portions 11 facing away from the connecting frame 12. The connection brackets 13 are used to provide connection positions for the first support member 10 to connect to the wearing components.

[0073] It can be understood that the wearing components refer to various components used to cooperate with the device (the first support member 10) to be worn on the human body. In a head-mounted display device, the wearing components may not be limited to temple arms, elastic bands, headbands, etc. according to the design requirements of the device, and this embodiment does not make strict limitations and requirements in this regard.

[0074] In this embodiment, the connection bracket 13 is set to slope downward from the end connecting the first support portion 11 towards the end away from the first support member 10. In this way, the structure formed by sequentially connecting the connection bracket 13, the first support portion 11, and the connecting frame 12 can fit better with the human eye socket, more accurately, the structure of the human eyebrow bone part. Whether the head-mounted display device is in contact with the wearer's skin in the wearing state or not, the structure defined by the first support member 10 can make the overall head-mounted display device fit better with the human body. In addition to effectively improving the wearing comfort of the user, it also enables the device to provide more comprehensive functions with a limited volume, enhancing the user's experience.

[0075] In this embodiment, a connection portion 131 for connecting the wearing components is formed at the end of the connection bracket 13 facing away from the first support portion 11. The height of the connection portion 131 is basically the same as the height of the support groove 121. The main reason for such a design is as follows:

[0076] The height of the human nose bridge is relatively close to the height of the upper ear root. Therefore, by setting the connecting frame 12 supported by the human nose bridge and the connection portion 131 for connecting the wearing components to have approximately the same height, when the subsequent wearing components and the connecting frame 12 respectively support on the wearer's upper ear root and nose bridge, the head-mounted wearable device can be in the correct wearing position, and the device can maintain stable wearing with the human body, thereby ensuring that the display effect of the device can meet the user's usage requirements and satisfy the user's wearing and visual experience needs.

[0077] Please continue to refer to the attached Figures 1 - 8 Based on the structure of the connecting frame 13 on the first support member 10, at least one second support portion 14 is further provided on the upper side of the connecting frame 13. The second support portion 14 can provide more installation positions and layout spaces for the installation of the main board 20 on the first support member 10, so as to improve the design freedom of the main board 20 and its layout freedom on the first support member 10.

[0078] It can be understood that due to the fact that the connecting frame 13 is arranged to be inclined downward relative to the position where the first support portion 11 is located, the overall height position of the connecting frame 13 is lower than the height position of the first support member 10 having the first support portion 11. Therefore, the height at which the second support portion 14 is located is also lower than the height of the first support portion 11, so that the second support portion 14 fits the structure of the connecting frame 13. Therefore, a stepped structure is formed between the second support portion 14 and the first support portion 11 to respectively provide a support position for the main board 20 to be stably assembled on the first support member 10. Also, due to the fact that the connecting frame 13 is a structure that slopes downward from near the first support portion 11 towards the connecting portion 131, when there are multiple second support portions 14, the multiple second support portions 14 are arranged at intervals in sequence along the inclined direction of the connecting frame 13 on the upper side of the connecting frame 13, and a stepped structure is formed between any two adjacent second support portions 14.

[0079] Continuing with the above embodiment, the main board 20 further includes at least two second rigid board portions 23 and a second flexible board portion 24. The second rigid board portion 23, as a part of the main board 20 with high rigidity and stability, like the first rigid board portion 211, serves as a carrier for relevant components to be stably arranged on the first support member 10. The second flexible board portion 24 can not only be responsible for connecting between the rigid board portions, but also is not limited to providing corresponding support positions for relevant components. The number of the second rigid board portions 23 is set to be the same as that of the second support portions 14, so that each second rigid board portion 23 can be respectively arranged on each second support portion 14. The first rigid board group 21 is connected to the second rigid board portion 23 through the second flexible board portion 24. Similar to the setting idea of the first flexible board portion 22, in order to ensure the compact structure of the head-mounted display device, the second flexible board portion 24 is also arranged between the first rigid board portion 211 and the second rigid board portion 23, or is arranged along the upper side structure of the connecting frame 13 between any two rigid board portions, and is supported by the upper surface of the connecting frame 13. Among them, the second flexible board portion 24 can be further adhesively bonded or the like to improve the connection fit and strength between it and the surface of the connecting frame 13. Or, by accurately controlling the length of the second flexible board portion 24, the situation that the second flexible board portion 24 bulges due to excessive length between any two rigid board portions can be avoided, ensuring the stability of the second flexible board portion 24 on the connecting frame 13.

[0080] As can be seen from the above, in the solution using a rigid-flex board as the main board 20, if a larger number of rigid board parts are used and the rigid board parts are all connected by flexible board parts, in addition to improving the layout flexibility of the main board 20 on the first support member 10, it also reduces the requirements for connectors and extra space on the main board 20, thus effectively saving space on the main board 20. More importantly, it makes it possible to implement a more complex circuit layout within a limited space, thereby improving the performance of the overall product. Therefore, how to improve the space utilization rate of the first support member 10 in the head-mounted display device is particularly important for improving the device performance and other aspects.

[0081] Therefore, on the basis of the above-described embodiments, the following embodiments are all described around the theme of how to improve the space utilization rate of the first support member 10. Please refer to the accompanying Figures 1 - 8 , and a third support portion 15 adjacent to the second support portion 14 is further provided on the connecting frame 13. Exemplarily, when a second support portion 14 is provided on the connecting frame 13 (the second support portions 14 are symmetrically provided on the connecting frames 13 at both ends of the first support member 10), third support portions 15 adjacent to the corresponding second support portions 14 are provided on both connecting frames 13; and when a plurality of second support portions 14 are respectively provided on the connecting frame 13, the third support portions 15 respectively located on the two connecting frames 13 are respectively adjacent to one of the second support portions 14.

[0082] In addition to utilizing the space position in the length direction of the first support member 10, this embodiment also utilizes to a certain extent the space position in the front or rear direction of the first support member 10. The third support portion 15 is located on the front or rear side of the connecting frame 13, so that the overall horizontal height of the third support portion 15 is lower than the height of the corresponding second support portion 14. The second support portion 14 and the third support portion 15 are specifically located on two adjacent side surfaces of the first support member 10. Therefore, the third support portion 15 and the second support portion 14 form a bent structure.

[0083] Correspondingly, the main board 20 further includes two third rigid board portions 25 and a third flexible board portion 26. The two third rigid board portions 25 are respectively provided on each third support portion 15, and the third rigid portion is connected to the second rigid board portion 23 through the third flexible board portion 26. It should be noted that when the first rigid board group 21 and the third rigid board portion 25 are both connected to the same second rigid board portion 23, the connection position of the first rigid board group 21 and the second rigid board portion 23 and the connection position of the third rigid board portion 25 and the second rigid board portion 23 are staggered on the second rigid board portion 23 to avoid interference between the second flexible board portion 24 and the third flexible board.

[0084] In one embodiment, in order to reduce the volume of the head-mounted display device, the width dimension of the first support member 10 gradually narrows from the position having the first support portion 11 towards the connecting frame 12 and the connecting bridge 13 respectively, that is, the width gradually narrows from the middle to both ends. In this way, more degrees of freedom for device layout can be provided in the width direction between the connecting bridge 13 and the connecting frame 12. Therefore, in this embodiment, a third support portion 15 is further added on the front side or the rear side of the connecting bridge 13. In addition to being able to layout and extend the main board 20 only along the length direction of the first support member 10, the local structure of the main board 20 is also widened to the front side and the rear side of the first support member 10, further making use of the width space of the first support member 10 on the connecting bridge 13. At the same time, due to the fact that the width dimension of the connecting bridge 13 gradually narrows and the thickness dimension of the rigid board portion itself is small, therefore, arranging the third rigid board portion 25 on the connecting bridge 13 through the third support portion 15 will not have too much impact on the size of the first support member 10. On the basis of ensuring the miniaturization of the structure of the first support member 10, its space utilization rate is improved, which is beneficial to the expansion of the functions and the improvement of the performance of the head-mounted display device.

[0085] In one embodiment, in this embodiment, the third support portion 15 is arranged on the rear side of the connecting bridge 13, and corresponding functional modules can be arranged on the front side of the connecting bridge 13 according to the design requirements of the head-mounted display device. In this way, the indirect distance between the functional module and the main board 20 can also be shortened, and it can be connected to the third rigid board portion 25 by means of a flexible cable in a way that crosses the second rigid board portion 23.

[0086] In one embodiment, a support structure adjacent to the third support portion 15 can also be arranged on the lower side of the first support member 10. Correspondingly, a rigid board portion for being arranged at this support structure and a flexible board portion for connecting this rigid board portion and the third rigid board portion 25 should also be arranged on the main board 20. This embodiment will not elaborate too much on this.

[0087] In one embodiment, as Figures 1 - 8 shown, in this embodiment, the part between the first support portion 11 and the support groove 121 can also be utilized. Two fourth support portions 16 are respectively arranged on the connecting frame 12 between the support groove 121 and the first support portion 11. In view of the structure that the connecting frame 12 is inclined from both ends towards the middle direction, the heights of the first support portion 11, the fourth support portion 16 and the support groove 121 in this embodiment decrease in sequence to match the structural design of the connecting frame 12. And because the first support portion 11, the fourth support portion 16 and the support groove 121 are all used to provide corresponding support positions for the part of the main board 20 located on the upper side of the first support member 10, therefore, the first support portion 11, the fourth support portion 16 and the support groove 121 are all located on the upper side of the first connecting member, so that the fourth support portion 16 forms a stepped structure with the first support portion 11 and the support groove 121 respectively.

[0088] Correspondingly, the main board 20 further includes two fourth hard board portions 27 and a fourth flexible board portion 28 . The two fourth hard board portions 27 are respectively disposed on each fourth support portion 16 , and the first hard board group 21 is connected to the fourth hard board portion 27 via the fourth flexible board portion 28 . According to the above content, it can be known that the first flexible board portion 22 needs to extend from one of the first support portions 11 through the upper part of the connecting frame 12 to the other first support portion 11. Therefore, in this example, there may be overlapping parts between the fourth hard board portion 27 and the fourth flexible board portion 28 and the first flexible board portion 22. In order to avoid interference between the fourth hard board portion 27 and the fourth flexible board portion 28 and the first flexible board portion 22, in this embodiment, the fourth flexible board portion 28 is staggered from the first flexible board portion 22 on the basis of the fourth hard board portion 27 being arranged on the upper side of the first support member 10 through the fourth support portion 16, and the first flexible board portion 22 is arranged to be spaced from the fourth hard board portion 27 corresponding to the lower side of the fourth hard board portion 27. The first flexible board portion 22 is supported by the connecting frame 12 only through the part of the support groove 121, and the part located at the fourth support portion 16 is suspended, thereby avoiding interference between the board portions.

[0089] According to any of the above embodiments, it can be understood that in order to ensure that each hard board part can be stably arranged in each supporting part, the supporting part mentioned in the above content can be set as a platform structure or a groove structure set on the first supporting member 10 to achieve stable support and accommodation of each hard board part, and by setting each supporting part as a platform structure or a groove structure respectively, each supporting part can also be adapted to the ergonomic design of the first supporting member 10, satisfying the inclined structure at the connecting frame 12 and the connecting frame 13. At the same time, when the hard board part is accommodated in the corresponding groove structure, the risk of mutual interference between the hard board part and other board parts can be reduced, thereby improving the stability of the head-mounted display device.

[0090] According to the design of the fourth support portion 16, it can be understood that the fourth hard plate portion 27 and the first flexible plate portion 22 are also designed in a manner of being spaced apart along the thickness direction of the first support frame, which utilizes the spatial position of the first support member 10 in the thickness direction to a certain extent. Therefore, in one embodiment, if Figures 1 - 7As shown, in this embodiment, at least one stacking area is also provided on the first support part 11 of the first support member 10. The stacking area can be understood as an installation space extending along a preset direction inside the head-mounted display device, so that the above-mentioned related components can be arranged in a stacked manner along the space extended by the stacking area in the head-mounted display device, thereby changing the internal layout mode of the head-mounted display device, improving the space utilization rate of the device, enabling the electronic components on the main board 20 to be densely integrated in the stacking area, while using flexible circuits such as FPC in other areas and bending them in accordance with the specific shape design of the glasses, so as to ensure that the head-mounted display device can be designed into various shapes and the glasses meet the miniaturization design.

[0091] Continuing with the above embodiment, on the basis that the first rigid board group 21 is arranged on the first support part 11, the first rigid board group 21 is provided with a first rigid board part 211 and a fifth rigid board part 212 in the stacking area provided by the head-mounted display device. The fifth rigid board part 212 is arranged on the first support part 11, and the first rigid board part 211 is stacked on the side of the fifth rigid board part 212 away from the first support part 11. The first rigid board part 211 and the fifth rigid board part 212 are connected by a fifth flexible board part 29. One end of the fifth flexible board part 29 is specifically connected to the fifth rigid board part 212, and the other end of the fifth flexible board part 29 is turned up to the side of the fifth rigid board part 212 away from the first support part 11 and connected to the first rigid board part 211.

[0092] In this embodiment, by setting the structure of the first rigid board group 21 as the first rigid board part 211, the fifth rigid board part 212 and the fifth flexible board part 29, the first rigid board part 211 and the fifth rigid board part 212 can be arranged in a stacked manner, making use of the installation space of the head-mounted display device in the thickness direction. Moreover, the first rigid board part 211 and the fifth rigid board part 212 can be kept connected through the fifth flexible board part 29, enabling the main board 20 to form a stacked structure of multiple main boards 20 at the first support part 11, forming enough area of the main board 20 to meet the installation requirements of electronic components, and realizing the centralized setting of electronic components, improving the design freedom of the device, being beneficial to the miniaturization, lightweight and diversification design of the head-mounted display device, and enhancing the wearing experience of users.

[0093] It should be understood that in the state where the first rigid board part 211 and the fifth rigid board part 212 are stacked along the thickness direction, the part of the fifth flexible board part 29 located between the first rigid board part 211 and the fifth rigid board part 212 is in a bent state. The fifth flexible board part 29 extends outward from the first rigid board part 211 and bends upward and finally extends to the fifth rigid board part 212.

[0094] Moreover, to ensure the reliability of the fifth flexible plate portion 29, optionally, the R angle between the first rigid plate portion 211 and the fifth rigid plate portion 212 where the fifth flexible plate portion 29 is located should be set to be greater than or equal to R0.5. Due to material limitations, the fifth flexible plate portion 29 itself has limited bendability. For the current fifth flexible plate portion 29, it is necessary to control the R angle to be set to be greater than or equal to R0.5 to avoid the first flexible plate portion 22 being shortened in lifespan or damaged due to excessive bending.

[0095] Similar to other included rigid plate portions, the first rigid plate portion 211 and the fifth rigid plate portion 212 can be used to stack some electronic devices included in the main board 20 to ensure that the relevant devices have a relatively stable installation state on the main board 20, while the fifth flexible plate portion 29 can enable the main board 20 to adapt to the installation space provided inside the head-mounted display device, bend, stack the first rigid plate portion 211 and the fifth rigid plate portion 212 to form a multi-layer main board 20 structure, improving the versatility of the main board 20 and also ensuring the reliability of the main board 20.

[0096] It is worth mentioning that the above-mentioned first flexible plate portion 22 is respectively connected to two first rigid plate portions 211 or two fifth rigid plate portions 212. In the case where the above also includes a second rigid plate portion 23, one end of the second flexible plate portion 24 is connected to the third rigid plate portion 25, and the other end of the second flexible plate portion 24 is connected to the first rigid plate or the fifth rigid plate portion 212.

[0097] The first rigid plate portion 211 and the first support member 10 are adhesively connected by an adhesive member 30. One end of the adhesive member 30 is adhered to a side surface of the first rigid plate portion 211 facing away from the fifth rigid plate portion 212, and the other end of the adhesive member 30 is adhered to the first support member 10.

[0098] From the above content, it can be understood that the fifth rigid plate portion 212 is directly fixedly installed on the first support member 10 through the first support portion 11. However, due to the fact that the first rigid plate portion 211 needs to be stacked on the fifth rigid plate portion 212, the first rigid plate portion 211 cannot form a direct assembly relationship with the first support portion 11. In the above-mentioned embodiment, the first rigid plate portion 211 is only constrained by the fifth rigid plate portion 212 through the fifth flexible plate portion 29. To ensure that the first rigid plate portion 211 also has a reliable assembly relationship in the head-mounted display device, please refer to the appendix Figures 1 - 6 , the first rigid plate portion 211 and the first support member 10 are adhesively connected by an adhesive member 30. One end of the adhesive member 30 is adhered to a side surface of the first rigid plate portion 211 facing away from the fifth rigid plate portion 212, and the other end of the adhesive member 30 is adhered to the first support member 10 to improve the assembly reliability between the first rigid plate portion 211 and the first support member 10.

[0099] By gluing and fixing the first hard plate portion 211 to the first support member 10 through the adhesive 30, the difficulty of assembling the main board 20 and the first support member 10 can be effectively reduced. On the basis that the fifth hard plate portion 212 is stably set on the first support member 11 through the fixed structure, the first hard plate portion 211 only needs to simply form a matching relationship with a certain strength with the first support member 10, which can ensure the reliability of the main board 20 on the first support member 10 and avoid the occurrence of shaking and loosening of the first hard plate portion 211 during the use of the head-mounted display device.

[0100] In the above embodiment, the first rigid plate portion 211 and the first support member 10 are mated without the need for additional fixing tools, such as screws or nuts, thereby reducing operational difficulty and cost. The adhesive bonding method also allows the first rigid plate portion 211 to be quickly secured to the first support member 10, improving assembly efficiency of the head-mounted display device and facilitating subsequent disassembly and replacement. Furthermore, the adhesive member 30 can accommodate motherboards 20 and first support members 10 of varying shapes and sizes, thus reducing assembly requirements for the first rigid plate portion 211 and minimizing the impact of machining errors on the assembly process, thereby enhancing applicability.

[0101] In addition, due to the strong adaptability of the adhesive 30, the installation space required by the adhesive 30 in the head-mounted display device is relatively small, ensuring that the head-mounted display device has a simple and compact structure, which is conducive to the miniaturization and lightweight design of the device.

[0102] For example, the adhesive 30 may be, but is not limited to, electrical tape, epoxy adhesive, acrylic adhesive, silicone adhesive, polyurethane adhesive, etc.

[0103] In one embodiment, please refer to the attached Figures 1 - 6 The head-mounted display device also includes a second support member 40, which is detachably mounted on the first support member 10. The second support member 40 is located on the side of the first support member 10 away from the first support portion 11. A display unit 50 is provided between the first support member 10 and the second support member 40, and the display unit 50 can be fixed to the first support member 10 and / or the second support member 40 according to the design requirements of the head-mounted display device.

[0104] The first support member 10 and the second support member 40 of this embodiment adopt a modular design. In addition to meeting the design and assembly requirements of the head-mounted display device, this embodiment can also effectively improve construction efficiency and flexibility, and reduce the difficulty of installing components and functional modules such as the main board 20 and the display unit 50 on the first support member 10 and the second support member 40. At the same time, the split design also facilitates the processing and production of the head-mounted display device, reducing the equipment's manufacturing complexity.

[0105] Continuing from the above embodiments, the first rigid plate portion 211 and the display unit 50 are respectively disposed on opposite sides of the first support member 10 in the thickness direction. The display unit 50 can be understood as being disposed in a stacked manner with the first rigid plate portion 211 along the thickness direction, or adjacent to each other in other directions (such as arranged side by side along the width or length direction of the head-mounted display device). The two are connected by a flexible connection line 60. One end of the first flexible connection line 60 is connected to the display unit 50, and the other end of the first flexible connection line 60 is electrically connected to the first rigid plate portion 211 or the second rigid plate portion 23.

[0106] In one embodiment, the display unit 50 and the first rigid plate portion 211 or the second rigid plate portion 23 are also arranged in a stacked manner. By using the flexible connection line 60 to connect the two, it can be well adapted to this arrangement. The flexible connection line 60 is connected between the two in an upwardly folded manner, making full use of the space of the head-mounted display device in the thickness direction.

[0107] In addition, it should be noted that the flexible connection line 60 can be a flexible flat cable (FFC) or a flexible printed circuit board (such as an FPC). Since the display unit 50 and the main board 20 are two relatively independent entities, only an electrical connection relationship needs to be formed between the display unit 50 and the main board 20 to meet the design requirements of the display unit 50.

[0108] Connecting the display unit 50 with the first rigid plate portion 211 or the fifth rigid plate portion 212 can also provide an installation position for the cable socket 213 of the flexible connection line 60 on the display unit 50 through the first rigid plate portion 211 or the fifth rigid plate portion 212. In this example, the cable socket 213 is disposed on the first rigid plate portion 211 and is stably mounted on the first rigid plate portion 211, so as to form a reliable connection with the display unit 50 through the flexible connection line 60.

[0109] When the display unit 50 is connected to the first rigid board portion 211 or the fifth rigid board portion 212, a female flexible cable connector 213 for corresponding connection with the display unit 50 needs to be provided on the first rigid board portion 211 or the fifth rigid board portion 212. However, the female flexible cable connector 213 itself has a certain height on the circuit board. If the display unit 50 is externally connected to the stacked structure formed by the first rigid board portion 211 and the fifth rigid board portion 212, the female flexible cable connector 213 itself will also cause an increase in the size of the stacked structure in the thickness direction. Considering that there needs to be enough spacing between the first rigid board portion 211 and the fifth rigid board portion 212 in this embodiment to ensure that the electronic devices between the first rigid board portion 211 and the fifth rigid board portion 212 do not collide, in this embodiment, the female flexible cable connector 213 is arranged between the first rigid board portion 211 and the fifth rigid board portion 212, so that the flexible connection line 60 of the display unit 50 is connected between them in an upwardly folded manner and is connected to the female flexible cable connector 213 on the first rigid board portion 211 (which can also be arranged on the fifth rigid board portion 212 according to actual needs), which can further save space.

[0110] In summary, by combining the rigid and flexible parts, this embodiment enables the head-mounted display device to more flexibly design the shape and structure of the main board 20, as well as the cooperation mode between the main board 20 and the display device (including but not limited to the relative position and connection mode, etc.), so as to adapt to the complex product structure and space limitations, thereby improving the overall performance and reliability of the product.

[0111] Continuing with the above embodiment, it can be understood from the above content that the first rigid board portion 211 and the display unit 50 are respectively arranged on the opposite sides of the first support member 10 in the thickness direction. Therefore, in order to ensure that the flexible connection line 60 can connect the first rigid board portion 211 and the display unit 50, the flexible connection line 60 needs to extend outward from one side of the first support member 10 and be folded upward to the outside of the first support member 10 before it can be bent upward to the first rigid board portion 211 located above the first support member 10. However, due to the fact that a part of the flexible connection line 60 needs to be bent and arranged outside the first support member 10, there is a risk that the flexible connection line 60 will interfere with other components or functional modules in the head-mounted display device, thereby increasing the failure rate of the head-mounted display device.

[0112] For this reason, please refer to the accompanying Figures 1 - 8, the first support member 10 is provided with a wire passing opening 17 penetrating through opposite sides of the first support portion 11. The flexible connection line 60 is turned up from the display unit 50 through the wire passing opening 17 to be connected to the fifth rigid plate portion 212, thereby avoiding the situation where the flexible connection line 60 needs to be wound around the outside of the first support member 10 before it can be bent to the first rigid plate portion 211. The flexible plate portion is protected by the first support member 10, ensuring reliable connection between the display unit 50 and the first rigid plate portion 211.

[0113] In one embodiment, in order to enable the wearer to clearly view the optical image from the display unit 50 when wearing the head-mounted display device, the second support member 40 is provided with a light-transmitting opening 41 penetrating through its opposite sides.

[0114] Correspondingly, the head-mounted display device further includes a display lens (not shown in the figure). The display lens can be understood as an optical lens assembly in the optical engine module, and it can but is not limited to include lenses, reflectors, BB optical modules, etc. In this embodiment, the display lens is installed on the side of the second support member 40 facing away from the display unit 50, and the display unit 50 faces the display lens through the above-mentioned light-transmitting opening 41, so as to change the propagation direction of the light from the display unit 50 (when there is a light source) through the display lens, and accurately project the light of the optical image onto the user's retina.

[0115] In the description herein, it should be understood that the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0116] In the description of this specification, the description referring to terms such as "one embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0117] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0118] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. A head-mounted display device, characterized in that, Comprising: A first support member (10), on the upper side of which two first support portions (11) are symmetrically arranged. The two first support portions (11) are connected by a connecting frame (12). The connecting frame (12) inclines downward from the two ends connecting the first support portions (11) towards the middle thereof and forms a support groove (121); A main board (20) is arranged on the first support member (10). The main board (20) includes two opposite first rigid board groups (21) and a first flexible board portion (22). The two first rigid board groups (21) are respectively installed on the two first support portions (11). The first flexible board portion (22) is located above the connecting frame (12) and is connected to the two first rigid board groups (21) respectively through its opposite ends. The lower side of the first flexible board portion (22) is supported by the groove wall of the support groove (121), so that the first flexible board portion (22) inclines downward from its opposite ends towards the middle; 2. The head-mounted display device according to claim 1, wherein At the ends of the two first support portions (11) away from the connecting frame (12), connection frames (13) are respectively arranged. The connection frames (13) are used to provide connection positions for connecting wearing components for the first support member (10); The connection frame (13) inclines downward from the end connecting the first support portion (11) towards the end away from the first support member (10) and forms a connection portion (131) for connecting a wearing component at its end; 3. The head-mounted display device according to claim 2, characterized in that At least one second support portion (14) is further arranged on the upper side of the connection frame (13). The second support portion (14) and the first support portion (11) are in a stepped structure; The main board (20) further includes at least two second rigid board portions (23) and a second flexible board portion (24). The second rigid board portions (23) are respectively arranged on the second support portions (14). The first rigid board group (21) is connected to the second rigid board portions (23) through the second flexible board portion (24); 4. The head-mounted display device according to claim 3, wherein A third support portion (15) adjacent to the second support portion (14) is further arranged on the connection frame (13). The third support portion (15) is located on the front side or the rear side of the connection frame (13). The third support portion (15) and the second support portion (14) are in a bent structure; The main board (20) further includes two third rigid board portions (25) and a third flexible board portion (26). The two third rigid board portions (25) are respectively arranged on the third support portions (15). The third rigid portions are connected to the second rigid board portions (23) through the third flexible board portion (26); 5. The head-mounted display device according to claim 1, wherein Two fourth support portions (16) are respectively arranged between the support groove (121) and the first support portion (11) of the connection frame (12). The heights of the first support portion (11), the fourth support portion (16), and the support groove (121) decrease in sequence, so that the fourth support portion (16) and the first support portion (11) and the support groove (121) are in a stepped structure; The main board (20) further includes two fourth rigid board portions (27) and a fourth flexible board portion (28). The two fourth rigid board portions (27) are respectively disposed on each of the fourth support portions (16), and the first rigid board group (21) is connected to the fourth rigid board portion (27) through the fourth flexible board portion (28).

6. The head-mounted display device according to any one of claims 1-5, characterized in that, The first support member (10) is provided with a stacking area on the first support portion (11). The first rigid board group (21) includes a first rigid board portion (211) and a fifth rigid board portion (212). The fifth rigid board portion (212) is disposed on the first support portion (11), and the first rigid board portion (211) is stacked on a side of the fifth rigid board portion (212) away from the first support portion (11). The first rigid board portion (211) and the fifth rigid board portion (212) are connected through a fifth flexible board portion (29). One end of the fifth flexible board portion (29) is connected to the fifth rigid board portion (212), and the other end of the fifth flexible board portion (29) is turned up to a side of the fifth rigid board portion (212) away from the first support portion (11) and connected to the first rigid board portion (211). The first flexible board portion (22) is respectively connected to the two first rigid board portions (211) or the two fifth rigid board portions (212).

7. The head-mounted display device according to claim 6, wherein The first rigid board portion (211) and the first support member (10) are adhesively connected through an adhesive member (30). One end of the adhesive member (30) is adhered to a side surface of the first rigid board portion (211) away from the fifth rigid board portion (212), and the other end of the adhesive member (30) is adhered to the first support member (10).

8. The head-mounted display device according to claim 6, wherein, Further included is: A second support member (40) detachably mounted on the first support member (10). The second support member (40) is located on a side of the first support member (10) away from the first support portion (11), and a display unit (50) is disposed between the first support member (10) and the second support member (40). The display unit (50) is connected to the fifth rigid board portion (212) through a flexible connection line (60). One end of the flexible connection line (60) is connected to the display unit (50), and the other end of the flexible connection line (60) is turned up to between the first rigid board portion (211) and the fifth rigid board portion (212) and electrically connected to the first rigid board portion (211) or the fifth rigid board portion (212).

9. The head-mounted display device according to claim 8, wherein The first support member (10) is provided with a wire passing opening (17) penetrating through opposite sides of the first support portion (11). The flexible connection line (60) is turned up from the display unit (50) through the wire passing opening (17) to connect to the fifth rigid board portion (212).

10. The head-mounted display device according to claim 8, wherein, The second support member (40) is provided with a light transmissive opening (41) penetrating through its opposite sides. The head-mounted display device further includes: A display lens, the display lens being mounted on a side of the second support member (40) facing away from the display unit (50), and the display unit (50) facing the display lens through the light-transmitting opening (41).

Images