A combined head-mounted device

Abstract

A combined head-mounted display device comprises a glasses body and a coupling shell; a main control unit and an optical machine module are mounted inside the glasses body, the optical machine module is electrically connected with the main control unit and is arranged corresponding to the user's eyes; the coupling shell is detachably connected with the glasses body and is internally provided with a photo transmission receiving module, and when the coupling shell is connected with the glasses body, the main control unit is electrically connected / signal connected with the photo transmission receiving module, so that the head-mounted display device is used as flight glasses, and when the coupling shell is detached from the glasses body, the main control unit is electrically connected / signal connected with a computer terminal, so that the head-mounted display device is used as viewing glasses; on the other hand, the photo transmission receiving module and the main control unit are independently arranged, so that the early assembly is simple, the manufacturing cost can be reduced, and if the photo transmission receiving module needs to be repaired, replaced or upgraded later, the coupling shell can be removed and disassembled alone, so that the maintenance difficulty can be reduced, and the overall use convenience of the head-mounted display device is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of head-mounted display devices, and particularly relates to a combined head-mounted display device. Background Technology

[0002] Both flight goggles and viewing goggles are head-mounted display devices. Flight goggles, also known as FPV goggles, can receive images transmitted from cameras on drones / racing machines and display the flight footage on the optical-mechanical module, allowing users to control the flying equipment from a first-person perspective. Viewing goggles, on the other hand, are VR / AR goggles. They can connect to computer terminals such as mobile phones / computers and display video or game images on the optical-mechanical module to generate a virtual environment, facilitating human-computer interaction.

[0003] Traditional flight goggles and movie-watching goggles are two separate devices, requiring the purchase of two different goggles to experience different functions, which causes great inconvenience to users. To address this, multi-purpose goggles that combine FPV / VR / AR technologies have emerged on the market (such as DJI's Goggles). These multi-purpose goggles can be used as flight goggles or movie-watching goggles by switching working modes, improving the user experience.

[0004] However, since these multi-purpose glasses integrate the image transmission and receiving module into the main control unit installed inside the glasses body, this increases the difficulty of initial assembly and the manufacturing cost. Furthermore, if the image transmission and receiving module needs to be repaired or replaced or upgraded later, a complete disassembly is required, making maintenance difficult and resulting in poor overall ease of use. Therefore, it is necessary to design a combined head-mounted display device to solve this problem. Utility Model Content

[0005] Technical problems to be solved This invention provides a modular head-mounted display device that can be used as flight goggles or movie-watching goggles, and is convenient for users to assemble in the early stages and maintain in the later stages, reducing manufacturing costs and maintenance difficulties, and improving overall ease of use.

[0006] Technical solution To achieve the above objectives, this utility model provides the following technical solution: A combined head-mounted display device includes an eyeglass body and a connecting housing. The eyeglass body houses a main control unit and an optical engine module, the optical engine module being electrically connected to the main control unit and configured to correspond to the user's eyes. The connecting housing is detachably connected to the eyeglass body and contains a built-in image transmission receiving module. When the connecting housing is connected to the eyeglass body, the main control unit is electrically / signally connected to the image transmission receiving module. When the connecting housing is detached from the eyeglass body, the main control unit is electrically / signally connected to a computer terminal.

[0007] Preferably, a headband is also hinged to the glasses body, and the headband is provided with a fixing strap for binding the head.

[0008] Preferably, the slot opens upwards, and a limiting opening is provided on the inner wall of the slot. The connecting housing is provided with a plug, which can be inserted into or detached from the slot, so that the connecting housing and the eyeglass body can be disassembled from each other.

[0009] Preferably, the inner wall of the slot is provided with a limiting opening, and the insert is provided with a limiting rib. When the insert is inserted into the slot, the limiting rib is inserted into the limiting opening.

[0010] Preferably, the inner wall of the slot is provided with a bayonet, and the insert block is provided with a buckle. When the insert block is inserted into the slot, the buckle engages with the bayonet.

[0011] Preferably, the insert block has a notch, and the insert block is also equipped with a movable lever at the notch. The buckle is set on the lever, and when the buckle is engaged with the slot, one end of the lever protrudes from the slot to the outside.

[0012] Preferably, the connecting housing has a data connector electrically connected to the image transmission receiving module mounted on the plug, and the main control unit includes a data interface located in the slot; when the plug is inserted into the slot, the data connector is inserted into the data interface to electrically connect the main control unit to the image transmission receiving module; when the plug is removed from the slot, the computer terminal can connect to the data interface via a data cable to electrically connect the main control unit to the computer terminal.

[0013] Preferably, the main control unit includes a control motherboard and several control keys. The control keys are installed on the outer wall of the glasses body, and the control motherboard is installed inside the glasses body and electrically connected to the optical engine module, the data interface, and the control keys.

[0014] Preferably, a first storage battery is also installed inside the glasses body, and the first storage battery is electrically connected to the control motherboard.

[0015] Preferably, the main control unit includes a control motherboard and several control keys. The control keys are mounted on the outer wall of the glasses body, and the control motherboard is mounted inside the glasses body and electrically connected to the optical engine module and the control keys. The control motherboard integrates a signal receiving module. The connecting housing contains a first signal transmitting module electrically connected to the image transmission receiving module, and the computer terminal contains a second signal transmitting module. When the plug is inserted into the slot, the signal receiving module on the control motherboard is signal-connected to the first signal transmitting module; when the plug is disengaged from the slot, the signal receiving module on the control motherboard is signal-connected to the second signal transmitting module.

[0016] Preferably, the glasses body also has a first battery electrically connected to the control motherboard, and the connecting housing also has a second battery electrically connected to the image transmission receiving module.

[0017] Preferably, the optical engine module includes a display screen and optical components. The optical components include a housing, a projection lens, and an eyepiece. The housing is installed inside the eyeglass body and has a developing chamber. The display screen is installed on the housing and electrically connected to the control main board. The projection lens is installed in the developing chamber and is positioned corresponding to the display screen. The eyepiece is installed on the side wall of the developing chamber and is positioned corresponding to the projection lens and the user's eye.

[0018] Preferably, the image transmission receiving module includes a circuit board, an antenna, a decoding processing chip, and several adjustment keys. The antenna and the decoding processing chip are both integrated on the circuit board, and the several adjustment keys are disposed on the outer wall of the connecting housing and electrically connected to the circuit board. The circuit board is electrically connected to the data connector, or the circuit board is electrically connected to the first signal transmitting module, so that the image transmission receiving module is electrically / signally connected to the control motherboard.

[0019] Preferably, the main control unit further includes a decoder, the control motherboard is electrically connected to the decoder, and an FPGA module is installed on the control motherboard. The control motherboard receives the image signal from the image transmission receiving module or the computer terminal, parses it through the decoder, processes it through the FPGA module, and then outputs it for display on the display screen.

[0020] (III) Beneficial Effects This utility model provides a modular head-mounted display device. An image transmission receiving module is installed inside a detachable connecting shell to receive image signals captured by a flight device. A main control unit is installed inside the glasses to receive and process image signals transmitted from the image transmission receiving module or a computer terminal, and then displays the image to the user via an optomechanical module. Compared to existing technologies, this head-mounted display device can be used as flight glasses when the glasses are connected to the connecting shell, and as viewing glasses when the connecting shell is detached from the glasses. Furthermore, the independent installation of the image transmission receiving module and the main control unit simplifies initial assembly, reduces manufacturing costs, and allows for easy maintenance or replacement / upgrading of the image transmission receiving module by removing the connecting shell and disassembling the device separately, thus reducing maintenance difficulty and effectively improving the overall ease of use of the head-mounted display device. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 A schematic diagram of the overall structure of this utility model is shown; Figure 2 It shows Figure 1 Top view; Figure 3 It shows Figure 2 AA section view; Figure 4 It shows Figure 3 Enlarged view of point A in the middle; Figure 5 An exploded view of the overall structure of this utility model is shown; Figure 6 A schematic diagram of the structure of the eyeglasses body of this utility model is shown; Figure 7 It shows Figure 6 Rear view; Figure 8 It shows Figure 7 BB cross-sectional view; Figure 9 It shows Figure 8 Enlarged view of point B in the middle; Figure 10 It shows Figure 7 CC section view; Figure 11 A schematic diagram of the connecting housing of this utility model is shown; Figure 12 It shows Figure 11 A bottom view; Figure 13 It shows Figure 12 DD sectional view; Figure 14 It shows Figure 13 A magnified view of point C in the middle.

[0022] In the diagram: 1. Glasses body, 10. Main control unit, 100. Data interface, 101. Control motherboard, 102. Signal receiving module, 11. Optical engine module, 111. Display screen, 112. Optical components, 1120. Developing chamber, 1121. Cover, 1122. Projection lens, 1123. Eyepiece, 113. Fine adjustment knob, 12. Headband, 120. Fixing strap, 13. Slot, 131. Limiting port, 132. Bayonet, 2. Connecting housing, 20. Image transmission receiving module, 200. Data connector, 201. Circuit board, 202. Antenna, 203. Decoding processing chip, 204. Adjustment key, 21. Insert, 211. Limiting rib, 212. Buckle, 213. Notch, 214. Lever. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this application. It is understood that the accompanying drawings are provided for reference and illustration only, and are not intended to limit this application. The connection relationships shown in the accompanying drawings are only for clear description and do not limit the connection method.

[0024] See appendix Figure 1 - Appendix Figure 6 A combined head-mounted display device includes a glasses body 1 and a connecting housing 2. The glasses body 1 is equipped with a main control unit 10 and an optical engine module 11. The optical engine module 11 is electrically connected to the main control unit 10 and is configured to correspond to the user's eyes. The connecting housing 2 is detachably connected to the glasses body 1 and has a built-in image transmission receiving module 20. When the connecting housing 2 is connected to the glasses body 1, the main control unit 10 is electrically / signally connected to the image transmission receiving module 20. When the connecting housing 2 is removed from the glasses body 1, the main control unit 10 is electrically / signally connected to a computer terminal (not shown in the figure).

[0025] Specifically, when this head-mounted display device needs to be used as flight goggles, the connecting housing 2 is installed on the goggles body 1, and the main control unit 10 is electrically / signally connected to the image transmission receiving module 20. The image transmission receiving module 20 can then transmit flight images captured by drones, racing drones, and other flight equipment to the main control unit 10 via electrical or wireless signals. The main control unit 10 then projects the processed image data onto the optomechanical module 11 for display, allowing the user to control the flight equipment from a first-person perspective. Of course, the flight equipment can also be replaced with underwater robots or land vehicles, etc., that have cameras and can send image signals to the image transmission receiving module 20.

[0026] When this head-mounted display device needs to be used as movie-watching glasses, the connecting housing 2 is detached from the glasses body 1, and the main control unit 10 is electrically / signally connected to small and medium-sized computer terminals such as mobile phones, tablets, laptops, and desktop computers. Then, the video screen of the computer terminal is transmitted to the main control unit 10 in the form of electrical or wireless signals. The main control unit 10 then projects the processed screen data to the optical engine module 11 to generate a virtual environment, which is convenient for users to watch movies or perform human-computer interaction.

[0027] It should be noted that both electrical and signal connections can be used to transmit flight / video signals, and the relevant connection methods are quite common in the field. Therefore, no limitation is made here, and the structure is not described in detail here. For details, please refer to the two embodiments below. On the other hand, the optical engine module 11, as the core display component, can be combined with VR / AR technology to generate virtual environments, and can also be combined with MicroOLED technology to focus on virtual giant screen display. Manufacturers can choose to set up optical engine modules 11 with targeted functions according to the actual needs of users. Since the device methods are diverse and most of them are existing technologies, no limitation is made in this utility model.

[0028] In summary, this invention provides a head-mounted display device that receives image signals captured by flight equipment by installing an image transmission receiving module 20 inside a detachable connecting housing 2 relative to the main body 1. It also provides a main control unit 10 inside the main body 1 to receive and process image signals transmitted from the image transmission receiving module 20 or a computer terminal, and then displays the images to the user via an optomechanical module 11. Compared to existing technologies, this head-mounted display device can be used as flight goggles when the main body 1 is connected to the connecting housing 2, and as movie-watching goggles when the connecting housing 2 is detached from the main body 1. Furthermore, the independent installation of the image transmission receiving module 20 and the main control unit 10 simplifies initial assembly, reduces manufacturing costs, and allows for easy maintenance or replacement / upgrading of the image transmission receiving module 20 by removing the connecting housing 2 and disassembling the device separately, thus reducing maintenance difficulty and effectively improving the overall usability of the head-mounted display device.

[0029] See appendix Figure 1 - Appendix Figure 6 The glasses body 1 is also hinged with a headband 12 with a fixing strap 120.

[0030] Specifically, the fixing strap 120 is used to bind the head, so as to assist the user in wearing the glasses body 1 with the headband 12. The hinged design of the headband 12 and the glasses body 1 allows the headband 12 to swing flexibly. With the adjustable length fixing strap 120, it can be adapted to various head shapes, improving the wearing experience.

[0031] See appendix Figure 2 - Appendix Figure 14 The glasses body 1 has a slot 13, and the connecting housing 2 has a plug 21. The plug 21 can be inserted into or removed from the slot 13. This design allows the connecting housing 2 and the glasses body 1 to be detached from each other.

[0032] Furthermore, the slot 13 is open to the upward, and the inner wall of the slot 13 is provided with a limiting port 131. The insert block 21 is provided with a limiting rib 211, and the limiting rib 211 is inserted into the limiting port 131 as the insert block 21 is inserted into the slot 13.

[0033] Specifically, the slot 13 opens upwards, requiring the insert 21 to be inserted into the slot 13 from top to bottom. With this design, the connecting housing 2 can apply pressure to the insert 21 by its own weight, preventing the insert 21 from moving upwards and detaching from the slot 13. At the same time, the cooperation between the limiting rib 211 and the limiting port 131 has a limiting effect, which can prevent the insert 21 from shaking in the slot 13. Therefore, the above structural design can improve the connection stability between the connecting housing 2 and the eyeglass body 1.

[0034] Furthermore, the inner wall of the slot 13 is provided with a bayonet 132, and the insert 21 is provided with a buckle 212. When the insert 21 is inserted into the slot 13, the buckle 212 engages with the bayonet 132. The engagement of the buckle 212 with the bayonet 132 can restrict the insert 21 from moving upward, thereby completely fixing the insert 21 in the slot 13, so that the connecting housing 2 can be more stably fixed to the eyeglass body 1.

[0035] It should be noted that, in addition to the snap-fit ​​method, the plug 21 and the slot 13 can also be connected by an interference fit, a magnetic connection, or even by screws. Since there are various specific limitations, this utility model does not impose any restrictions on them.

[0036] Furthermore, the insert 21 is provided with a notch 213, and a movable lever 214 is installed at the notch 213. A buckle 212 is provided on the lever 214, and when the buckle 212 engages with the slot 132, one end of the lever 214 protrudes from the slot 13 to the outside.

[0037] Specifically, during the insertion of the insert 21 into the slot 13, the inner wall of the slot 13 abuts against the latch 212, causing the lever 214 to deform and move within the notch 213. When the insert 21 is fully inserted into the slot 13, the latch 212 returns to its original state and aligns with the locking slot 132, thus restricting the upward movement of the insert 21 and locking the connecting housing 2. When it is necessary to remove the connecting housing 2 from the eyeglass body 1, the lever 214 is moved to the external end, causing the latch 212 to disengage from the locking slot 132 and releasing the restriction on the connecting housing 2. Then the connecting housing 2 can be moved upward. Therefore, the above structural design makes it convenient for users to adjust the position of the latch 212 to lock or loosen the connecting housing 2, improving operational convenience.

[0038] See appendix Figure 3 - Appendix Figure 14 In one embodiment, the main control unit 10 is electrically connected to the image transmission receiving module 20 and the computer terminal. The connecting housing is mounted on the plug block 21 with a data connector 200 electrically connected to the image transmission receiving module 20. The main control unit 10 includes a data interface 100 placed in the slot 13. The data connector 200 can be plugged into the data interface 100. The computer terminal can also be plugged into the data interface 100 via a data cable (not shown in the figure).

[0039] Specifically, when the plug 21 is inserted into the slot 13, the data connector 200 is inserted into the data interface 100, so that the main control unit 10 is electrically connected to the image transmission receiving module 20, thereby enabling the head-mounted display device to be used as flight glasses; when the plug 21 is removed from the slot 13, the computer terminal and the data interface 100 are connected through the data cable, so that the main control unit 10 is electrically connected to the computer terminal, enabling the head-mounted display device to be used as viewing glasses.

[0040] It should be noted that the technology of achieving electrical connection and transmitting image signals by connecting the data connector 200 and the data cable to the data connector 200 is quite common in the electronics field. Therefore, the specific circuit structure will not be described in detail in this utility model.

[0041] Furthermore, the main control unit 10 is an existing product, and there are many different types. Therefore, this utility model does not limit it. For ease of understanding, the main control unit 10 in this embodiment includes a control motherboard 101 and several control keys (not shown in the figure). The control keys are installed on the outer wall of the glasses body 1. The control motherboard 101 is installed inside the glasses body 1 and is electrically connected to the optical engine module 11, the data interface 100, and the control keys. The control motherboard 101 can receive and parse the image signal, while the control keys are used to operate the operating status of related components. Since the relevant technology is relatively conventional in the field of electronics, its specific circuit structure is not described in detail in this utility model.

[0042] Furthermore, a first battery (not shown in the figure) is also installed inside the glasses body 1. The first battery is electrically connected to the control motherboard 101. When the data connector 200 is not plugged into the data interface 100, the first battery is mainly used to power the control motherboard 101 and the optical engine module 11. When the data connector 200 is plugged into the data interface 100, the first battery can be used to synchronously power the control motherboard 101, the optical engine module 11 and the image transmission receiver module 20. When the first battery is low on power, it can also be charged by connecting the data interface 100 and an external power source through the data cable.

[0043] In another embodiment (not shown in the figure), the main control unit 10 is signal-connected to the image transmission receiving module 20 and the computer terminal. The main control unit 10 includes a control motherboard 101 and several control keys (not shown in the figure). The control keys are installed on the outer wall of the glasses body 1. The control motherboard 101 is installed inside the glasses body 1 and electrically connected to the optical engine module 11 and the control keys. The control motherboard 101 integrates a signal receiving module 102. The connecting housing 2 has a first signal transmitting module (not shown in the figure) that is electrically connected to the image transmission receiving module 20. The computer terminal has a second signal transmitting module (not shown in the figure).

[0044] Specifically, when the plug 21 is inserted into the slot 13, the signal receiving module 102 on the control motherboard 101 is connected to the first signal transmitting module, so that the image receiving module 20 can transmit the flight image signal to the control motherboard 101 through the first signal transmitting module and the signal receiving module 102, and finally be displayed by the optical engine module 11 and used as flight glasses; similarly, when the plug 21 is removed from the slot 13, the signal receiving module 102 on the control motherboard 101 is connected to the second signal transmitting module, so that the computer terminal can transmit the video image signal to the control motherboard 101 through the second signal transmitting module and the signal receiving module 102, and finally be displayed by the optical engine module 11 and used as viewing glasses.

[0045] It should be noted that the technology of the first signal transmitting module, the second signal transmitting module, and the signal receiving module 102 working together to transmit audio, video, and other signals is quite common in the field of electronic control. Therefore, this utility model will not describe its specific circuit structure and working principle.

[0046] Furthermore, the glasses body 1 also has a built-in first battery (not shown in the figure) electrically connected to the control motherboard 101, and the connecting housing 2 has a built-in second battery (not shown in the figure) electrically connected to the image transmission receiver module 20.

[0047] Specifically, since the image transmission receiving module 20 is not powered on the control motherboard 101, the function of the second battery is to power the image transmission receiving module 20 and the first signal transmitting module. The computer terminal generally has a built-in battery or is directly connected to an external power source to power the second signal transmitting module. Similarly, in this case, both the glasses body 1 and the connecting housing 2 can be provided with charging ports for charging the first and second batteries (not shown in the figure).

[0048] See appendix Figure 3 - Appendix Figure 10 The optical engine module 11 includes a display screen 111 and an optical device 112. The optical device 112 includes a housing 1121, a projection lens 1122, and an eyepiece 1123. The housing 1121 is installed inside the eyeglass body 1 and has a developing chamber 1120. The display screen 111 is installed on the housing 1121 and is electrically connected to the control main board 101. The projection lens 1122 is installed in the developing chamber 1120 and is set corresponding to the display screen 111. The eyepiece 1123 is installed on the side wall of the developing chamber 1120 and is set corresponding to the projection lens 1122 and the user's eyes.

[0049] Specifically, when the control motherboard 101 inside the glasses body 1 is connected to the image transmission receiver module 20 or computer terminal inside the connecting housing, the relevant flight / video images will be transmitted to the display screen 111 for display, and the projection lens 1122 will refract the flight / video images to the eyepiece 1123 for the user to view.

[0050] It should be noted that the optical engine module 11 is widely used in AR glasses / VR glasses / FPV glasses. Depending on different needs, the optical engine module 11 can also optionally be equipped with a fine-tuning knob 113 on the housing for fine-tuning the optical components 112. Some optical engine modules 11 can even function normally without the display screen 111. In addition to the above-mentioned components, the optical components 112 can also optionally be equipped with beam splitters, filters and other components for further processing and imaging. Since the optical engine module 11 is existing technology and there are many related types, this utility model does not limit its specific model and structure, nor does it describe its working principle in detail.

[0051] See appendix Figure 11 - Appendix Figure 14 The image transmission receiving module 20 mainly includes a circuit board 201, an antenna 202, a decoding processing chip 203, and several adjustment keys 204. The antenna 202 and the decoding processing chip 203 are both integrated on the circuit board 201. Several adjustment keys 204 are installed on the outer wall of the connecting housing 2 and are wired to the circuit board 201. The circuit board 201 is electrically connected to the data connector 200, or the circuit board 201 is electrically connected to the first signal transmitting module, so that the image transmission receiving module 20 is electrically / signally connected to the control motherboard 101.

[0052] Specifically, if the image transmission receiving module 20 and the control motherboard 101 are electrically connected, the image signal received by the antenna 202 is analyzed by the decoding processing chip 203 and transmitted to the control motherboard 101 through the data connector 200 and the data interface 100, and finally displayed through the optical engine module 11; if the image transmission receiving module 20 and the control motherboard 101 are signal connected, the image signal received by the antenna 202 is analyzed by the decoding processing chip 203 and transmitted to the control motherboard 101 through the first signal transmitting module and the signal receiving module 102, and finally displayed through the optical engine module 11; in addition, pressing the adjustment key 204 can send an adjustment command to the circuit board 201 to adjust the usage mode of the image transmission receiving module 20.

[0053] It should be noted that the image transmission receiver module 20 is an existing product, and there are various types of image transmission receiver modules 20 on the market, such as 5.8G image transmission receiver modules 20 and 2.4G image transmission receiver modules 20. Different types of image transmission receiver modules 20 have the same basic components, but other components are different. Users can choose to purchase and assemble according to their needs, and this utility model does not impose any restrictions on this. At the same time, since the image transmission receiver module 20 is widely used in the FPV field, its specific circuit structure and working principle are not described in detail in this utility model.

[0054] Furthermore, the main control unit 10 also includes a decoder (not shown in the figure), the control motherboard 101 is electrically connected to the decoder, and an FPGA module (not shown in the figure) is installed on the control motherboard 101; after the image transmission receiving module 20 or the computer terminal transmits the image signal to the control motherboard 101, the control motherboard 101 parses it through the decoder and processes it through the FPGA module, and then sends the processed information to the display screen 111 for output display; the technology used by the decoder and FPGA module in conjunction with the control motherboard 101 is widely used in the FPV / AR / VR field and belongs to the prior art, therefore, the specific circuit structure and working principle of this utility model will not be described in detail.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A combined head-mounted display device, characterized in that, The device includes a glasses body, which houses a main control unit and an optical engine module. The optical engine module is electrically connected to the main control unit and configured to fit the user's eyes. It also includes a connecting housing, which is detachably connected to the glasses body and houses an image transmission receiving module. When the connecting housing is connected to the glasses body, the main control unit is electrically / signally connected to the image transmission receiving module. When the connecting housing is detached from the glasses body, the main control unit is electrically / signally connected to a computer terminal. When the connecting housing is connected to the eyeglasses body, the side of the connecting housing near the eyeglasses body is in contact with the side of the eyeglasses body near the connecting housing.

2. The combined head-mounted display device according to claim 1, characterized in that, The glasses are also hinged to a headband, which has a fixing strap for securing the head.

3. The combined head-mounted display device according to claim 1, characterized in that, The eyeglasses body has a slot, and the connecting housing has a plug. The plug can be inserted into or removed from the slot so that the connecting housing and the eyeglasses body can be detached from each other.

4. The combined head-mounted display device according to claim 3, characterized in that, The slot opens upwards, and a limiting opening is provided on the inner wall of the slot. The insert block is provided with a limiting rib. When the insert block is inserted into the slot, the limiting rib is inserted into the limiting opening.

5. A combined head-mounted display device according to claim 4, characterized in that, The slot has a bayonet on its inner wall, and the insert has a buckle. When the insert is inserted into the slot, the buckle engages with the bayonet.

6. A combined head-mounted display device according to claim 5, characterized in that, The insert block has a notch, and a movable lever is installed at the notch. The latch is set on the lever, and when the latch is engaged with the slot, one end of the lever protrudes from the slot to the outside.

7. A combined head-mounted display device according to claim 3, characterized in that, The connecting housing has a data connector electrically connected to the image transmission receiving module mounted on the plug. The main control unit includes a data interface located in the slot. When the plug is inserted into the slot, the data connector is inserted into the data interface to electrically connect the main control unit to the image transmission receiving module. When the plug is removed from the slot, the computer terminal can connect to the data interface via a data cable to electrically connect the main control unit to the computer terminal.

8. A combined head-mounted display device according to claim 7, characterized in that, The main control unit includes a control motherboard and several control keys. The control keys are installed on the outer wall of the glasses body, and the control motherboard is installed inside the glasses body and electrically connected to the optical engine module, the data interface, and the control keys.

9. A combined head-mounted display device according to claim 8, characterized in that, The glasses body also has a first storage battery installed inside, and the first storage battery is electrically connected to the control motherboard.

10. A combined head-mounted display device according to any one of claims 3-9, characterized in that, The main control unit includes a control motherboard and several control keys. The control keys are mounted on the outer wall of the glasses body. The control motherboard is installed inside the glasses body and electrically connected to the optical engine module and the control keys. The control motherboard integrates a signal receiving module. The connecting housing has a first signal transmitting module electrically connected to the image transmission receiving module, and the computer terminal has a second signal transmitting module. When the plug is inserted into the slot, the signal receiving module on the control motherboard is signal-connected to the first signal transmitting module. When the plug is disengaged from the slot, the signal receiving module on the control motherboard is signal-connected to the second signal transmitting module.

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