Near-to-eye display apparatus, wearable device, and control method for near-to-eye display apparatus

Abstract

The present application relates to the technical field of near-to-eye display, and provides a near-to-eye display apparatus, a wearable device, and a control method for the near-to-eye display apparatus. The near-to-eye display apparatus comprises: a display assembly, provided with a first connecting structure, the first connecting structure being configured to be connected to a wearable member, and the display assembly being used for displaying an image; and a data collection assembly, communicationally connected to the display assembly, the data collection assembly being configured to allow releasable connection with the display assembly, the data collection assembly being provided with a second connecting structure, the second connecting structure being configured to be connected to the wearable member, and the data collection assembly being used for acquiring data. The data collection assembly is releasably connected to the display assembly, so that the data collection assembly and the display assembly can be combined together or separated, achieving flexible mounting, thereby effectively improving the compatibility with devices. On the basis of different usage scenarios, the display assembly and the data collection assembly can be assembled on different sides or the same side of the wearable member, satisfying personalized use requirements.

Description

Near-eye display device, wearable device, and control method of near-eye display device

[0001] This application claims the priority of the patent application number 2024206444397 filed with the China Patent Office on March 29, 2024, and entitled “A near-eye display device and wearable device”; the priority of the patent application number 2024105670107 filed with the China Patent Office on May 9, 2024, and entitled “Near-eye display device, wearable device and control method of near-eye display device”; the priority of the patent application number 2024103789003 filed with the China Patent Office on March 29, 2024, and entitled “A circuit board module and near-eye display module” priority to the patent application filed with the Patent Office of China on March 29, 2024, with application number 2024206513804 and application name “A circuit component and near-eye display module”; priority to the patent application filed with the Patent Office of China on March 22, 2024, with application number 2024205769156 and application name “Near-eye display device”; priority to the patent application filed with the Patent Office of China on March 22, 2024, with application number 2024205857388 and application name “Near-eye display device”; all of the above contents are incorporated into this application by reference. Technical Field

[0002] The present application relates to the field of near-eye display technology, and in particular to a near-eye display device, a wearable device, and a control method for a near-eye display device. Background Art

[0003] Near-to-eye display (NTD) projects images directly into the user's eyes and is commonly used in virtual reality (VR) helmets, augmented reality (AR) devices, mixed reality (MR) devices, head-mounted displays (HMDs), and other similar wearable devices. This display method allows users to see magnified images at an extremely close distance, providing an immersive visual experience.

[0004] Most existing near-eye display devices use optical waveguides or prisms, combined with other optical path correction, drive circuits, and heat dissipation structures, which often result in the functions of the entire device being relatively fixed and single. However, different users have different functional requirements. How to meet users' personalized needs or to adapt and be compatible with existing related equipment is also a problem that needs to be solved urgently. Summary of the Invention

[0005] The purpose of this application is to overcome the defects of the prior art and provide a near-eye display device, a wearable device and a control method for a near-eye display device to solve the problems in the prior art.

[0006] To solve the above problems, a first aspect of an embodiment of the present application provides a near-eye display device, comprising:

[0007] A display assembly is provided with a first connection structure, wherein the first connection structure is used to connect to the wearable component, and the display assembly is used to display images;

[0008] a data acquisition component, communicatively connected to the display component, the data acquisition component being configured to allow releasable connection to the display component, the data acquisition component being provided with a second connection structure, the second connection structure being configured to be connected to the wearable component, the data acquisition component being configured to acquire data, the data including first data and second data;

[0009] Wherein, when the first connection structure and the second connection structure are configured to be located on different sides of the wearable component, the data acquisition component is configured to acquire the first data, and the display component is configured to perform a first display based on the first data;

[0010] When the first connecting structure and the second connecting structure are configured to be located on the same side of the wearable component at the same time, the data acquisition component is configured to acquire the second data, and the display component is configured to perform a second display based on the second data. The first data and the second data are different, and the first display and the second display are different.

[0011] A second aspect of an embodiment of the present application provides a wearable device, comprising a wearing piece and the near-eye display device as described above; the wearing piece is used to be worn on the user's head; the display component and the data acquisition component are both detachably connected to the wearing piece.

[0012] A third aspect of an embodiment of the present application provides a control method for a near-eye display device, which is applied to the near-eye display device as described above, wherein the near-eye display device includes a display component and a data acquisition component that are communicatively connected to each other, the display component is provided with a first connection structure, and the data acquisition component is provided with a second connection structure, and the data acquisition component is configured to allow releasable connection with the display component; the method includes: when it is obtained that the first connection structure and the second connection structure are respectively located on different sides of the wearable component, the data acquisition component is configured to obtain first data, and the display component is configured to perform a first display based on the first data; when it is obtained that the first connection structure and the second connection structure are simultaneously located on the same side of the wearable component, the data acquisition component is configured to obtain second data, and the display component is configured to perform a second display based on the second data, wherein the first data and the second data are different, and the first display and the second display are different.

[0013] The beneficial effects of the present application include: the near-eye display device proposed in the present application includes a display component and a data acquisition component, the display component and the data acquisition component are separate structures, the display component is installed on the wearable component through a first connection structure, and the data acquisition component is installed on the wearable component through a second connection structure. After the display component and the data acquisition component establish a communication connection, data transmission and interaction can be achieved. In addition, when the near-eye display device is in use, the display component and the data acquisition component can be assembled on different sides or the same side of the wearable component, thereby obtaining a first display or a second display, thereby obtaining different usage effects. The data acquisition component and the display component are releasably connected, so that the two can be combined together or separated, with a flexible installation method, which effectively improves the compatibility with the device; users can assemble the display component and the data acquisition component on different sides or the same side of the wearable component according to different usage scenarios, thereby meeting their own personalized usage needs.

[0014] More relevant beneficial technical effects of this application will be described in the following relevant embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] FIG1( a ) shows a first structural schematic diagram of a near-eye display device;

[0017] FIG1( b ) shows a second schematic structural diagram of the near-eye display device in FIG1( a );

[0018] FIG2 shows a schematic diagram of the exploded structure of the near-eye display device in FIG1( a ) and ( b );

[0019] FIG3 shows a cross-sectional view of the near-eye display device in FIG1( a ) and ( b );

[0020] FIG4 shows a cross-sectional view of a housing;

[0021] FIG5( a ) shows a schematic structural diagram of a display module;

[0022] FIG5( b ) shows a first schematic structural diagram of a fixing bracket;

[0023] FIG6( a ) shows a second schematic diagram of the structure of the fixing bracket in FIG5( b );

[0024] FIG6( b ) shows a schematic structural diagram of an optical module;

[0025] FIG7( a ) shows a schematic structural diagram of a second circuit board;

[0026] FIG7( b ) shows a schematic structural diagram of a power supply module in the second embodiment;

[0027] FIG8 shows a schematic structural diagram of a wearable device;

[0028] FIG9( a ) shows a schematic diagram of a display assembly;

[0029] FIG9( b ) shows a schematic diagram of a data acquisition component;

[0030] FIG9( c ) shows a schematic diagram of a first housing;

[0031] FIG9( d ) shows a schematic diagram of a near-eye display device with a mounting frame;

[0032] FIG10 is a schematic diagram showing a wearable device equipped with a near-eye display device;

[0033] FIG11( a ) shows a schematic diagram of a first connection structure;

[0034] FIG11( b ) shows a cross-sectional view of the first connection structure in FIG11( a );

[0035] FIG11( c ) shows a schematic diagram of a second connection structure;

[0036] FIG11( d ) shows a cross-sectional view of the second connection structure in FIG11( c );

[0037] FIG12( a ) shows an exploded schematic diagram of a display assembly;

[0038] FIG12( b ) shows an exploded schematic diagram of a data acquisition assembly;

[0039] FIG13( a ) shows a schematic diagram of a first electrical system;

[0040] FIG13( b ) shows a schematic diagram of a second electrical system;

[0041] FIG14 shows a flow chart of a method for controlling a near-eye display device;

[0042] FIG15 shows a first schematic diagram of a circuit board module in an unfolded state;

[0043] FIG16 shows a second schematic diagram of the circuit board module in FIG15 in an unobstructed state;

[0044] FIG17 shows a front view of the circuit board module in FIG15;

[0045] FIG18 shows a bottom view of the circuit board module in FIG15 ;

[0046] FIG19 shows a schematic diagram of the circuit board module in FIG15 after folding;

[0047] FIG20 shows a schematic diagram of a display module;

[0048] FIG21( a ) shows a schematic diagram of a near-eye display module;

[0049] FIG21( b ) shows a schematic diagram of a folded circuit board module when the length of the first flexible connection portion is h3;

[0050] FIG22 is a perspective structural diagram of the first side of a circuit assembly according to an embodiment;

[0051] FIG23 is a perspective structural diagram of the second side of a circuit assembly according to an embodiment;

[0052] FIG24 is a plan view of a first side of a circuit assembly according to an embodiment;

[0053] FIG25 is a plan view of the second side of a circuit assembly according to an embodiment;

[0054] FIG26 is a simplified schematic diagram of a near-eye display module in a folded state according to an embodiment;

[0055] FIG27 is a simplified schematic diagram of a near-eye display module packaged in accordance with an embodiment;

[0056] FIG28 is a perspective structural diagram of the first side of a circuit assembly according to another embodiment;

[0057] FIG29 is a perspective structural diagram of the second side of a circuit assembly according to another embodiment;

[0058] FIG30 is a schematic diagram of a near-eye display module in a folded state according to another embodiment;

[0059] FIG31 is a simplified schematic diagram of a near-eye display module packaged in another embodiment;

[0060] FIG32 is a schematic structural diagram of an example of a near-eye display device of the present application;

[0061] FIG33( a ) is a schematic structural diagram of an example of a metasurface and micro-nano units of the present application;

[0062] FIG33( b ) is a schematic structural diagram of an example of a near-eye display module and a polarizer according to the present application;

[0063] FIG34 is a top view of an example of the present invention when the temples are in the extended position;

[0064] FIG35 is a top view of an example of the present invention when the temples are in a folded position;

[0065] FIG36 is a schematic structural diagram of an example of a near-eye display device of the present application;

[0066] FIG37 is a schematic structural diagram of another example of a near-eye display device of the present application;

[0067] FIG38( a ) is a schematic structural diagram of an example of a near-eye display module in use state 1 of the present application;

[0068] FIG38( b ) is a structural diagram of another example of the near-eye display module in use of the present application;

[0069] FIG39( a ) is a schematic structural diagram of an example of a prism according to the present application;

[0070] FIG39( b ) is a schematic structural diagram of an example of a near-eye display module and a prism according to the present application;

[0071] FIG39( c ) is a schematic structural diagram of an example of a near-eye display module of the present application;

[0072] FIG40( a ) is a schematic structural diagram of an example of a connection method between a near-eye display module and a frame of the present application;

[0073] FIG40( b ) is a structural diagram of another example of the near-eye display module in use of the present application;

[0074] FIG41 is a schematic structural diagram of an example of the environmental side of the mirror frame of the present application;

[0075] FIG42 is a structural diagram of another example of the connection method between the near-eye display module and the frame of the present application. DETAILED DESCRIPTION

[0076] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0077] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0078] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0079] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined. The term "and / or" is used to describe an association between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A alone, A and B together, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the associated objects are in an "or" relationship. References to "one embodiment" or "some embodiments" in this application mean that the specific features, structures, or characteristics described in conjunction with that embodiment are included in one or more embodiments of the application. Therefore, phrases such as "one embodiment," "some embodiments," "another embodiment," or "some other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "include", "comprising", "having" and variations thereof mean "including but not limited to", unless specifically emphasized otherwise.

[0080] Electrical connections can include connections made using wires, cables, welding, contacts, etc., and electrical connections can achieve the transmission of electrical energy and / or signals. Where A and B are directly connected using wires, cables, welding, contacts, etc., the electrical connection between A and B is considered a direct electrical connection. Where C is provided between A and B, and a signal or current is transmitted to B via A and C in sequence, the electrical connection between A and B is considered a distance electrical connection. In this application, the electrical connection between A and B can be a direct electrical connection between A and B, or an indirect electrical connection between A and B.

[0081] Near-eye display (NED) uses a display device placed within the human eye's non-photopic distance to render light field information to the human eye, thereby reconstructing a virtual scene in front of the eye. NEDs can create virtual images in either the field of view of one or both eyes. NEDs are typically used in conjunction with wearable devices such as glasses. NEDs require a power module to power them. External power modules are inconvenient to install and increase the manufacturing cost of the wearable device. For example, in optical waveguide smart glasses, the entire optical engine and power module are typically designed into the temples, which convert the light path to the lenses. When worn, the temples rest against the head or temples. Heat generated by the optical engine and power module needs to be dissipated through heat sinks (e.g., copper sheets), further increasing weight. To balance the weight of the temples, metal counterweights are added. Ultimately, NEDs are heavier than standard glasses, which can be burdensome and uncomfortable for users when worn for extended periods.

[0082] The embodiment of the present application provides a first aspect of a near-eye display device, including a shell, a power module and a power module, the power module and the power module are both arranged inside the shell, and the power module is electrically connected to the power module; the power module includes a display module and a circuit board module that are electrically connected, and the circuit board module is electrically connected to the power module; wherein the display module and the circuit board module are stacked, the power module is arranged on the periphery of the display module and the circuit board module, the height of the power module at least partially overlaps with the height between the display module and the circuit board module, and the display module is configured to generate light; the light is not blocked by the power module.

[0083] The embodiment of the present application provides a second aspect, which provides a wearable device, including a wearing piece and a near-eye display device as described above, wherein the wearing piece is used to be worn on the user's head; wherein the near-eye display device is detachably connected to the wearing piece.

[0084] In the present application, the display module and the circuit board module of the power module are stacked, and the power module is arranged on the periphery of the display module and the circuit board module. The height of the power module at least partially overlaps with the height between the display module and the circuit board module. This arrangement enables the power module and the display module to be located in the same shell. The shell is not the shell of the wearer's temple, so there is no need to put the electrical components on the temple. On the other hand, by rationally arranging the positions of the power module and the power module, the space utilization rate is improved, and the height of the shell can be effectively reduced, avoiding the problem of increased shell height caused by the stacking of the power module and the power module. The near-eye display device can effectively avoid setting the power module on the wearer's temple, and the above arrangement can effectively reduce the height of the shell, thereby reducing the total weight of the wearable device (such as glasses, etc.) equipped with the near-eye display device.

[0085] 1-3 , in this embodiment, a near-eye display device 10 is provided, comprising a near-eye display module 100, a first housing 110, a power module 101, and a power module 131. Both the power module 101 and the power module 131 are disposed within the first housing 110, and the power module 101 and the power module 131 are electrically connected. The power module 101 includes a display module 140 and a circuit board module 141, which are electrically connected to each other. The circuit board module 141 is electrically connected to the power module 131.

[0086] The display module 140 and the circuit board module 141 are stacked, and the power module 131 is disposed around the periphery of the display module 140 and the circuit board module 141. The height of the power module 131 at least partially overlaps the height between the display module 140 and the circuit board module 141. The display module 140 is configured to generate light. The light is not blocked by the power module 131. Specifically, as shown in FIG4 , the first housing 110 is internally provided with a first mounting cavity 1101 and a second mounting cavity 1102. The second mounting cavity 1102 surrounds the first mounting cavity 1101. The power module 101 is mounted within the first mounting cavity 1101, and the power module 131 is mounted within the second mounting cavity 1102. The central axes of both the first mounting cavity 1101 and the second mounting cavity 1102 are substantially parallel to the height direction of the first housing 110. For example, in some embodiments, the first mounting cavity 1101 and the second mounting cavity 1102 may be coaxial, i.e., their central axes are collinear.

[0087] 3 and 4 , the height direction of the first housing 110 is parallel to the direction indicated by the arrow x, and the dot-dash line L represents the central axis of the first installation cavity 1101 and the second installation cavity 1102. To facilitate a clearer view of the first installation cavity 1101 and the second installation cavity 1102, the figures use dashed lines to illustrate the boundaries between the first installation cavity 1101 and the second installation cavity 1102. It should be noted that the dashed lines do not exist in the actual product.

[0088] Referring to Figure 2, in this embodiment, the power module 131 is a complete unit. The power module 131 forms a central accommodating cavity 1311. The display module 140 and the circuit board module 141 are located at the center of the central accommodating cavity 1311. The axis of the display module 140 is substantially parallel to the height of the power module 131, thereby achieving center alignment and facilitating assembly. The power module 131 includes an integral battery that surrounds the outer periphery of the display module 140 and the circuit board module 141. The cross-sectional shape of the outer contour of the central accommodating cavity 1311 can be arcuate or annular, and the cross-section of the power module 131 is perpendicular to the height of the power module 131. The display module 140 and the circuit board module 141 are arranged sequentially along the height of the power module 131. When installing components such as the power module 101 and the power module 131, the distance between adjacent components should be as close as possible, while ensuring normal operation of each component and preventing abnormalities such as short circuits. This maximizes space utilization and, to a certain extent, reduces the manufacturing dimensions of the first housing 110.

[0089] By installing the power module 101 in the first mounting cavity 1101 and the power module 131 in the second mounting cavity 1102, the power module 101 and the power module 131 are properly positioned, effectively reducing the height of the first housing 110 and avoiding the problem of increasing the height of the first housing 110 due to the stacking of the power module 131 and the power module. The height of the near-eye display device 10 is equal to the height of the first housing 110.

[0090] As shown in Figure 2, in this embodiment, the power module 101 includes an electrically connected display module 140 and a circuit board module 141. The power module 131 has an arcuate cross-section, which is perpendicular to the height of the power module 131. The display module 140 and the circuit board module 141 are arranged sequentially along the height of the power module 131. Referring to Figures 3 and 4, the heights of the power module 131 and the power module 101 are parallel to the height of the first housing 110 and are also parallel to the direction indicated by arrow x.

[0091] In some other embodiments, the cross-sectional shape of the power module 131 may be annular.

[0092] As shown in FIG5(a), the display module 140 includes a microdisplay 142. The microdisplay 142 can be one of Micro-LED (Micro Light-Emitting Diode), uLED (Micro Light-Emitting Diode), Micro-OLED (Micro Organic Light-Emitting Diode), LCoS (Liquid Crystal On Silicon), LCD (Liquid Crystal Display), DMD (Digital Micromirror Device), DLP (Digital Light Processing), or LBS (Laser Beam Scanning), or any combination of these technologies.

[0093] Referring to Figure 3, the size of the column marked y in the figure represents the thickness of the power module 131. In some embodiments, the capacity of the power module 131 can be increased by increasing the thickness of the power module 131, thereby improving the battery life of the near-eye display device 10. As shown in Figure 3, the power module 131 includes an upper end face and a lower end face respectively located at both ends of its own height direction, and the power module 101 is at least partially located between the upper end face and the lower end face. Such a structure can improve the utilization rate of the space enclosed by the power module 131 and ensure that the power module 131 has a certain height to ensure its own capacity. If the power module 101 is not located in the space enclosed by the power module 131, then the height of the first shell 110 needs to be increased to fully accommodate the power module 101 and the power module 131. Compared with the button battery arrangement of some prior arts, in this embodiment, the power module 101 is entirely located between the upper end face and the lower end face. This means that the height of the power module 131 is not less than the height of the power module 101. When the height of the first shell 110 is constant, such a structural setting can effectively increase the height of the power module 131 to increase the capacity of the power module 131. At the same time, it also realizes the rational use of the internal space of the first shell 110.

[0094] The circuit board module 141 includes a power supply module and a control module. The power supply module is electrically connected to the control module. The power supply module may include electronic components such as resistors and capacitors. The power supply module receives electrical energy from the power module 131 and transmits it to electrical devices such as the control module. The control module may include a microprocessor. It should be noted that the accompanying drawings are schematic diagrams only and do not show electronic components such as resistors, capacitors, and microprocessors.

[0095] In this embodiment, the power supply module is integrated on the first circuit board 145, and the control module is integrated on the second circuit board 147. When the number of electronic components is too large, such a configuration can avoid the electronic components from being too densely distributed, thereby reducing the difficulty of processing and manufacturing. The first circuit board 145 is provided with a positive terminal and a negative terminal, wherein the positive terminal can be electrically connected to the positive pole of the power module 131 via a wire, and the negative terminal can be electrically connected to the negative pole of the power module 131 via a wire.

[0096] In some other embodiments, the power supply module and the control module may be integrated on the same circuit board.

[0097] Referring to Figures 2 and 3, an optical module 143 is provided on the light-emitting side of the display module 140. The first housing 110 includes a light-transmitting portion 112, with the optical module 143 positioned between the light-transmitting portion 112 and the display module 140. The optical module 143 allows light to pass through and can be made of materials such as transparent glass or resin. In some embodiments, the optical module 143 includes a lens that can change the direction of light propagation, thereby facilitating a clear visual perception of the image or video displayed by the display module 140. The outer surface of the light-transmitting portion 112 is flat or curved, with the outer surface of the light-transmitting portion 112 being the surface facing away from the optical module 143. In Figure 3, the area indicated by arrow a represents the outer surface of the light-transmitting portion 112. When the outer surface of the optical module 143 is curved, different curvatures can be set to accommodate different degrees of vision, thereby meeting the needs of myopic users. As shown in Figures 2 and 3, a fixing bracket 150 is provided on the display module 140. The display module 140 and the optical module 143 can be fixed together by the fixing bracket 150 .

[0098] As shown in Figures 5(b) and 6(a), the fixing bracket 150 includes a first connecting portion 151 and a second connecting portion 152. The first connecting portion 151 is provided with a first mounting portion 1511, and the second connecting portion 152 is provided with a second mounting portion 1521. The first mounting portion 1511 has a hole structure or a slot structure, and the second mounting portion 1521 has a hole structure or a slot structure. The first mounting portion 1511 and the second mounting portion 1521 are interconnected. In this embodiment, the first mounting portion 1511 has a slot structure, and the second mounting portion 1521 has a hole structure. The microdisplay 142 of the display module 140 is mounted in the first mounting portion 1511. The microdisplay 142 can be inserted into the first mounting portion 1511. The optical module 143 is partially mounted in the second mounting portion 1521. The micro display 142 of the display module 140 is installed in the inner cavity of the first connecting portion 151 , and the optical module 143 is at least partially installed in the inner cavity of the second connecting portion 152 .

[0099] As shown in FIG6( b ), in this embodiment, the optical module 143 includes a first component 1431 and a second component 1432. The first component 1431 and the second component 1432 are both cylindrical and coaxially arranged. The outer diameter of the first component 1431 is larger than the outer diameter of the second component 1432, and the outer diameter of the first component 1431 is larger than the inner diameter of the second mounting portion 1521. During assembly, the second component 1432 can be inserted into the second mounting portion 1521. Since the outer diameter of the first component 1431 is larger than the inner diameter of the second mounting portion 1521, the first component 1431 cannot be inserted into the second mounting portion 1521. Once the second component 1432 is fully inserted into the second mounting portion 1521, the second connecting portion 152 and the first component 1431 come into contact with each other, thereby achieving the installation and positioning of the optical module 143 on the fixing bracket 150. The fixture bracket can be made of opaque material, thereby preventing light leakage and the like.

[0100] As shown in Figures 2 and 3, in this embodiment, the power module 101 also includes a third circuit board 144. The third circuit board 144 is located on the side of the display module 140 that is away from the circuit board module 141. For example, the third circuit board 144 is fixedly mounted on the second connecting portion 152. Compared to the display module 140, the third circuit board 144 is closer to the light-transmitting portion 112. The third circuit board 144 is electrically connected to the control module. One or more of a sensor module, a light-emitting element, a sound receiving unit, or a sound emitting unit are provided on the third circuit board 144. The sensor module includes a light sensor and / or a posture sensor.

[0101] In some embodiments, a light sensor is disposed on the third circuit board 144, with the light sensor being positioned toward the light-transmitting portion 112. The light sensor is configured to detect ambient light. The light sensor transmits the detected signal to the control module, which then adaptively adjusts the display brightness of the microdisplay 142. For example, when the ambient brightness increases, the brightness of the microdisplay 142 is increased; when the ambient brightness decreases, the brightness of the microdisplay 142 is decreased.

[0102] In some embodiments, a posture sensor is provided on the third circuit board 144 , wherein the posture sensor may include an IMU sensor (Inertial Measurement Unit), which can be configured to obtain the motion state of the near-eye display device 10 .

[0103] In some embodiments, a light-emitting element is provided on the third circuit board 144, wherein the light-emitting element may include an LED. The light-emitting element can be used to provide reminders or alerts. For example, when the power module 131 is low on power, the light-emitting element emits red light; when a message is received, the light-emitting element emits blue light.

[0104] In some embodiments, the third circuit board 144 is provided with a sound receiving unit and a sound emitting unit, both of which are disposed toward the light-transmitting portion 112. The sound receiving unit may include a microphone, and the sound emitting unit may include a speaker. The microphone may be used to receive a user's voice signal, and the speaker may be used to play a sound signal. The sound signal played by the speaker may be derived from the video or audio played by the microdisplay 142, or from the user's instant messaging voice.

[0105] As shown in Figure 4, the first housing 110 includes a surrounding portion 1103, which is arranged around the circumference of the light-transmitting portion 112. One end of the surrounding portion 1103 is connected to the light-transmitting portion 112, and the other end is provided with an opening structure 1104. The power module 101 and the power module 131 are installed inside the first housing 110 through the opening structure 1104.

[0106] In this embodiment, a light-proof sleeve 170 is disposed between the surrounding portion 1103 and the power module 131. Sleeve 170 surrounds the second mounting cavity 1102, and the display module 140 is located within sleeve 170. The surrounding portion 1103 and the light-transmitting portion 112 can be an integral structure, both being light-transmitting. By disposing the light-proof sleeve 170 between the surrounding portion 1103 and the power module 131, interference with the optical signal emitted by the microdisplay 142 by external light and light leakage from the optical signal emitted by the microdisplay 142 can be prevented. Sleeve 170 can be made of a light-proof resin or metal.

[0107] In some embodiments, the surrounding portion 1103 is opaque, thereby preventing interference from external light or light leakage. Because the surrounding portion 1103 is opaque, the sleeve 170 is not required, thereby simplifying the structure. The surrounding portion 1103 can be made of an opaque material, or an opaque film or coating can be provided on the surface of the surrounding portion 1103.

[0108] As shown in Figures 2 and 3, in this embodiment, a cover body 120 is provided on the first shell 110, and the cover body 120 is used to close the opening structure 1104. The cover body 120 can be installed in the opening structure 1104 by means of threaded connection, snap connection, interference fit, etc. A groove 1201 is provided on the cover body 120, and an attraction member 121 that can be attracted by a magnet is installed in the groove 1201. The attraction member 121 can be magnetized or have magnetic properties. The attraction member 121 can be made of magnetizable ferritic stainless steel or the like, or the attraction member 121 can be directly made of a magnet. The attraction member 121 can have a sheet-like structure, and the attraction member 121 can be fixed in the groove 1201 by means of bonding or the like. Among them, the attraction member 121 is configured to be magnetically attracted to the external attraction member so as to assemble the near-eye display device 10 to the wearable member 400 (as described in the embodiment of the wearable device shown in Figure 8), and the wearable member 400 can be a lens or a frame, wherein the material of the external attraction member can be the same as that of the attraction member 121, and the two can be magnetically attracted to each other so as to be clamped and fixed on the wearable member 400, such as a lens or a frame.

[0109] In other embodiments, the cover 120 can be magnetized, for which there is no need to additionally provide the attraction member 121, thereby simplifying the structure. The cover 120 can be made of magnetizable ferritic stainless steel or the like, that is, it can be magnetically attracted to the external attraction member directly through the cover. An assembly portion may be provided on the wearable part 400, and the assembly portion includes a magnet. When installing the near-eye display device 10, the cover 120 is attached to the assembly portion, wherein the near-eye display device 10 can be fixed on the wearable part 400 under the action of the magnetic field force.

[0110] As shown in Figures 2 and 7(a), in this embodiment, the near-eye display device further includes an antenna module 160, which is electrically connected to the circuit board module 141. The antenna module 160 is positioned along the height of the power module 131 and is located at the edge of the circuit board module 141. The antenna module 160 extends parallel to the height of the power module 131. Specifically, the antenna module 160 can be positioned on the outer periphery of the second circuit board 147, and the antenna module 160 can extend perpendicular to the plane of the second circuit board 147. The main body of the antenna module 160 can be a flexible circuit board. The antenna module 160 enables wireless signal transmission and reception, thereby enabling the near-eye display device 10 to communicate with smart devices such as mobile phones. The antenna module 160 is positioned along the height of the power module 131 and on the outer periphery of the second circuit board 147. This prevents the power module 101 from obstructing the antenna module 160, ensuring the normal transmission and reception of wireless signals. Among them, the second circuit board 147 and the first circuit board 145 can be arranged parallel to each other, so as to effectively utilize the internal space of the first shell 110. The power module 101 needs to be fixed, and the power module 101 can be fixed to the inside of the first shell 110 through a connecting structure. The connecting structure includes a groove, a step or a reinforcing rib arranged inside the first shell 110. In some other embodiments, the connecting structure includes a connecting bracket fixed to the inside of the first shell 110. Since a sleeve 170 is provided inside the first shell 110 in this embodiment, the connecting structure can be provided on the inner wall of the sleeve 170. It should be noted that the connecting structure is not shown in the figure.

[0111] As shown in Figure 8, in this embodiment, a wearable device is also proposed, including a wearing piece 400 and the near-eye display device 10 mentioned above, and the wearing piece 400 is used to be worn on the user's head; wherein, the near-eye display device 10 is detachably connected to the wearing piece 400, for example, by being adsorbed on the wearing piece 400 by magnetic attraction, and the wearing piece 400 can be on a lens or a frame. In other embodiments, the near-eye display module 10 can also be embedded in the wearing piece 400 by other detachable methods such as threads and snap-ons.

[0112] In this embodiment, the wearable item 400 may be glasses. In other embodiments, the wearable item 400 may also be a helmet or the like.

[0113] Example 2

[0114] As shown in FIG. 7( b ), the difference between this embodiment and the first embodiment lies in the power module 131 .

[0115] In this embodiment, the power module 131 includes a plurality of battery cells 1312 connected in series. The battery cells 1312 are arranged along an arc or a circle, wherein the battery cells 1312 enclose a central accommodating cavity 1311. Adjacent battery cells 1312 are electrically connected via electrical connectors 1313, thereby achieving series connection between the plurality of battery cells 1312. The electrical connectors 1313 are made of a conductive material.

[0116] In some other embodiments, a positive terminal and a negative terminal may be provided on both sides of the battery cell 1312. The two adjacent battery cells 1312 are attached to each other so that the positive terminal of one battery cell 1312 contacts the negative terminal of the other battery cell 1312, thereby achieving an electrical connection between the two battery cells 1312, eliminating the need for an additional electrical connection portion 1313.

[0117] Most existing near-eye display devices use optical waveguides or prisms, combined with other optical path correction, drive circuits, and heat dissipation structures, which often result in the functions of the entire device being relatively fixed and single. However, different users have different functional requirements. How to meet users' personalized needs or to adapt and be compatible with existing related equipment is also a problem that needs to be solved urgently.

[0118] To solve related technical problems, the first aspect of an embodiment of the present application provides a near-eye display device, including: a display component, which is provided with a first connection structure, the first connection structure is used to connect to a wearable component, and the display component is used to display an image; a data acquisition component, which is communicatively connected to the display component, and the data acquisition component is configured to allow releasable connection to the display component, the data acquisition component is provided with a second connection structure, the second connection structure is used to connect to the wearable component, and the data acquisition component is used to acquire data, and the data includes first data and second data; when the first connection structure and the second connection structure are respectively located on different sides of the wearable component, the data acquisition component is configured to acquire the first data, and the display component is configured to perform a first display based on the first data; when the first connection structure and the second connection structure are simultaneously located on the same side of the wearable component, the data acquisition component is configured to acquire the second data, and the display component is configured to perform a second display based on the second data, wherein the first data and the second data are different, and the first display and the second display are different.

[0119] A second aspect of an embodiment of the present application provides a wearable device, comprising a wearing piece and the near-eye display device as described above; the wearing piece is used to be worn on the user's head; the display component and the data acquisition component are both detachably connected to the wearing piece.

[0120] A third aspect of an embodiment of the present application provides a control method for a near-eye display device, which is applied to the near-eye display device as described above, wherein the near-eye display device includes a display component and a data acquisition component that are communicatively connected to each other, a first connection structure is provided on the display component, and a second connection structure is provided on the data acquisition component, and the data acquisition component is configured to allow releasable connection to the display component; the method includes the following steps: when it is detected that the first connection structure and the second connection structure are respectively located on different sides of the wearable component, triggering the data acquisition component to obtain first data, and controlling the display component to perform a first display according to the first data; when it is detected that the first connection structure and the second connection structure are simultaneously located on the same side of the wearable component, triggering the data acquisition component to obtain second data, and controlling the display component to perform a second display according to the second data, wherein the first data and the second data are different, and the first display and the second display are different.

[0121] The near-eye display device proposed in this solution uses a detachable connection structure to achieve modular combination through a separately designed display component and data acquisition component. When the two components are placed on both sides of the wearable device, the system obtains environmental information through the first data channel and generates the corresponding first display content (such as an augmented reality scene); when the two components are integrated on the same side of the wearable device, it switches to the second data channel to process biometric information and display the second interface (such as health monitoring data). This dual-mode working mode not only improves the compatibility of the device, but also realizes the free switching of functional scenarios. Users can choose the wearing method according to actual needs, and it combines lightweight equipment with functional scalability. The releasable connection design further supports the convenience of accessory replacement and maintenance.

[0122] Example 1

[0123] 9(a), 9(b) and 10, in this embodiment, a near-eye display device is provided, comprising a display assembly 100 and a data acquisition assembly 200. The display assembly 100 is provided with a first connection structure 310, the first connection structure 310 being used to connect to a wearable component 400, and the display assembly 100 is used to display an image; the data acquisition assembly 200 is communicatively connected to the display assembly 100, and the data acquisition assembly 200 is configured to allow for releasable connection with the display assembly 100, wherein the releasable connection can provide one or more of a variety of mechanisms to secure the components to each other. For example, mechanisms such as locks, latches, snaps, sliders, channels, screws, buckles, threads, magnets, pins, interference (e.g., friction) fits, rollers, bayonets, fused materials, fabrics, knitted fabrics, braids, hook-and-loop fasteners, and / or combinations thereof can be included to couple and / or secure the data acquisition assembly 200 and the display assembly 100 together. The components can remain secured to each other until an optional release mechanism is actuated. A release mechanism can be provided to allow the user to approach and release the device, or the user can actively touch the device to secure or release the device. The data acquisition component 200 is provided with a second connection structure 320, which is used to connect to the wearable device 400. The data acquisition component 200 is used to acquire data. The data includes first data and second data.

[0124] When the first connection structure 310 and the second connection structure 320 are configured to be located on different sides of the wearable component 400, respectively, the data acquisition component 200 is configured to obtain first data, and the display component 100 is configured to perform a first display based on the first data; when the first connection structure 310 and the second connection structure 320 are configured to be located on the same side of the wearable component 400 at the same time, the data acquisition component 200 is configured to obtain second data, and the display component 100 is configured to perform a second display based on the second data. The first data and the second data are different, and the first display and the second display are different. In some embodiments, the first data includes environmental data of the environmental side 420, and the first display includes displaying an image based on at least the environmental data; the second data includes human eye data of the human eye side 410, and the second display includes adjusting the displayed image based on the human eye data.

[0125] The display assembly 100 and the data acquisition assembly 200 can be installed on different sides or the same side of the wearable device 400 according to the user's needs. Before use, the user can manually switch them so that the relevant program can detect whether the display assembly 100 and the data acquisition assembly 200 are on different sides or the same side. For example, if they are on the same side, the user can manually switch them by operating the UI interface on the mobile phone or a switch on the near-eye display device. The same applies to opposite sides.

[0126] Of course, in other embodiments, the device's own software can detect whether the display component 100 and the data acquisition component 200 are located on different sides or the same side. For example, based on the captured image, it can be determined whether the data acquisition component 200 is facing the environment side or the human eye side. Specifically, if the image captured by the data acquisition component 200 is an image of the environment, the display component 100 and the data acquisition component 200 are determined to be on different sides; if the image captured by the data acquisition component 200 is an image of the human eye, the display component 100 and the data acquisition component 200 are determined to be on the same side.

[0127] The display assembly 100 and the data acquisition assembly 200 can be a split structure, so that the two can be processed and manufactured separately, thereby reducing manufacturing costs and improving manufacturing efficiency. When one of the display assembly 100 and the data acquisition assembly 200 fails, only the failed component needs to be replaced or repaired. In addition, the display assembly 100 and the data acquisition assembly 200 are split structures, so that the two can be installed separately on the wearable component 400, thereby avoiding the overall volume being too large and blocking the user's field of view.

[0128] The display assembly 100 is provided with a first connecting structure 310, and the data acquisition assembly 200 is provided with a second connecting structure 320. The first connecting structure 310 and the second connecting structure 320 are both used to detachably connect to a wearable component 400, wherein the first connecting structure 310 and the second connecting structure 320 may include magnets, slots, snap-on protrusions, elastic clamping structures, etc.; in other embodiments, the first connecting structure 310 and the second connecting structure 320 may also each include a flat or curved surface structure that allows for abutment with the wearable component 400; the wearable component 400 is used to be worn on the user's head. The wearable component 400 can be glasses, a helmet, etc. For example, the wearable component 400 can be myopia, hyperopia, sunglasses or goggles, etc., or a cycling helmet, a work helmet, etc. Of course, the wearable component 400 can also be a wearable flexible woven belt, or the wearable component 400 can be a hanging accessory such as a pocket of clothing, a necklace, or other accessories that can be carried or worn by the human body. In some embodiments, the wearable component 400 may be an optical lens, a frame for fixing the optical lens, or a combination of an optical lens and a frame.

[0129] 10 , the wearing member 400 includes an eye side 410 and an environment side 420. When the wearing member 400 is worn, the side facing the user's glasses is the eye side 410, and the side facing the environment is the environment side 420.

[0130] When the first connection structure 310 and the second connection structure 320 are configured to be located on opposite sides of the wearing member 400, the first connection structure 310 is located on the human eye side 410, and the second connection structure 320 is located on the environment side 420. When the first connection structure 310 and the second connection structure 320 are configured to be located on the same side of the wearing member 400, both the first connection structure 310 and the second connection structure 320 are located on the human eye side 410.

[0131] The width of the display component 100, the data acquisition component 200, the first connection structure 310 and the second connection structure 320 does not exceed 20 mm, for example, 20 mm, 18 mm, 15 mm, 10 mm, 8 mm, etc. The thickness of the display component 100 and the data acquisition component 200 does not exceed 20 mm, for example, 20 mm, 18 mm, 15 mm, 10 mm, 8 mm, etc. The above components and structures take a cylindrical shape as an example, the diameter of the cylinder can be the width, and the height of the cylinder can be the thickness. Therefore, the volume of the display component 100 and the data acquisition component 200 of the present application when placed on the wearable component 400 is small enough, which is very easy to carry, and is not easy to cause a large shielding effect on the field of view of the wearable component 400 such as lenses, and is worn in a hidden manner.

[0132] In some embodiments, when the first connecting structure 310 and the second connecting structure 320 are configured to be located on different sides of the wearable component 400, the first connecting structure 310 and the second connecting structure 320 are coaxially arranged; in other embodiments, when the first connecting structure 310 and the second connecting structure 320 are configured to be located on different sides of the wearable component 400, the first connecting structure 310 and the second connecting structure 320 may also be at least partially overlapping; in some embodiments, when the first connecting structure 310 and the second connecting structure 320 are configured to be located on the same side of the wearable component 400 at the same time, the first connecting structure 310 and the second connecting structure 320 are spaced apart, for example, the two may be spaced apart and parallel to each other. In another embodiment, the spacing between the first connecting structure 310 and the second connecting structure 320 may also be small enough to make them close to each other, but it is not a whole structure and should still be understood as a spacing.

[0133] The wearable device 400 has at least two first mounting locations, wherein the first mounting location is used to mount the first connecting structure 310; and the wearable device 400 has at least two second mounting locations, wherein the second mounting location is used to mount the second connecting structure 320. The first mounting location and the second mounting location may partially overlap. Due to the multiple first mounting locations and multiple second mounting locations, the user can install the display assembly 100 and the data acquisition assembly 200 in different locations according to usage requirements.

[0134] The display component 100 is communicatively connected to the data acquisition component 200. The display component 100 and the data acquisition component 200 can be connected wirelessly via 2.4g, Bluetooth, WIFI, or a wired communication connection such as a USB, TYPE-C, or the like. In other embodiments, the display component 100 and the data acquisition component 200 can also be indirectly communicated via a third-party terminal device. The third-party terminal device can be a wearable device such as a mobile phone, tablet, computer, watch, bracelet, smart glasses, etc., that is, the display component 100 is communicatively connected to the third-party terminal device, the data acquisition component 200 is communicatively connected to the third-party terminal device, and the display component 100 and the data acquisition component 200 are indirectly communicated with each other. The display component 100 is used to display images, and the data acquisition component 200 is used to collect data from the user or the environment.

[0135] In this embodiment, the data acquisition component 200 includes a data acquisition module 250. The data acquisition module 250 includes one or more of a camera, an accelerometer, an infrared sensor, an ambient light sensor, or a touch module. Specifically, the data acquisition module 250 may also include other sensors or components. The camera can be used to photograph the user's environment, or to photograph the user's glasses to achieve eye tracking, or to identify objects; the accelerometer can be used to detect the motion state of a device or a user; the infrared sensor can be used to detect objects in a dark environment; the touch module can be used to detect user gestures; the ambient light sensor is used to detect the brightness of the ambient light, etc.

[0136] In some embodiments, different data acquisition components 200 can be equipped with data acquisition modules 250 with different functions, thereby being able to collect different types of data. In this way, users can choose data acquisition components 200 with corresponding functions according to different usage scenarios to meet their own personalized usage needs.

[0137] In some application scenarios, the data acquisition component 200 includes a camera, and the first connecting structure 310 and the second connecting structure 320 are configured to be located on different sides of the wearable component 400, that is, the display component 100 is located on the side 410 facing the human eye, and the camera is located on the environment side 420. At this time, the camera of the data acquisition component 200 can obtain the external environment content as the first data, that is, the captured environment image, and the display component 100 can perform the first display of the first data according to the user's selection operation, that is, the display component 100 displays the captured environment image.

[0138] In other application scenarios, when the user needs to change the function of the near-eye display device, the first connection structure 310 and the second connection structure 320 can be configured to be located on the same side of the wearable component 400 at the same time. The first connection structure 310 and the second connection structure 320 are both located on the human eye side 410, and the data acquisition component 200 includes a camera. At this time, the camera obtains human eye data as the second data, that is, the camera of the data acquisition component 200 is used as a human eye sensing module. For example, the human eye data may include human eye tracking, pupil detection, human eye (upper and lower eyelid) opening and closing size, blinking frequency, iris, conjunctiva or sclera detection and other data. At this time, the display component 100 is configured to perform a second display based on the human eye data, wherein the second display may include adjustment of the displayed image content based on the user's human eye tracking data. The adjustment may be based on a specific time display of certain display content, an interactive display based on a user graphical interface, or based on the user. In some embodiments, the second display may include dynamic user interaction with the display image based on the user's eye tracking data, such as implementing related interactive displays such as pulling up and down, turning pages left and right, etc. on the display image of the display component 100 through eye tracking. In other embodiments, the display effect of the display component 100 may be adjusted based on the pupil or blinking frequency of the human eye. For example, if the pupil of the human eye is found to be dilated to a preset value, the display brightness of the display component 100 may be appropriately reduced, or if the conjunctiva of the human eye is found to be red, fatigue reminders or rest reminders and other related content may be displayed on the display component 100. In other embodiments, the second display of the display component 100 may perform other forms of interaction, reminders, or layered displays on certain display content based on other functions based on human eye data.

[0139] In this embodiment, the first connecting structure 310 and the second connecting structure 320 are both magnetically connected to the wearable component 400. Both the first connecting structure 310 and the second connecting structure 320 are magnetic; the wearable component 400 includes a magnetizable mounting portion, which, in the case of glasses, is a frame. Thus, the display assembly 100 and the data acquisition assembly 200 can be mounted anywhere on the frame under the influence of the magnetic field.

[0140] In other embodiments, both the first connecting structure 310 and the second connecting structure 320 can be magnetized, and the wearable component 400 includes a magnetic mounting portion. In this way, magnetic connection between the first connecting structure 310, the second connecting structure 320, and the wearable component 400 can also be achieved. The first connecting structure 310 can be fixed to the display component 100 or detachably connected to the display component 100; the second connecting structure 320 can be fixed to the data acquisition component 200 or detachably connected to the data acquisition component 200.

[0141] In this embodiment, the first connection structure 310 is detachably connected to the display assembly 100, and the second connection structure 320 is detachably connected to the data acquisition assembly 200. As shown in Figures 11(a) and 11(b), the first connection structure 310 includes a first housing 3100, in which a first magnet 311 is disposed. The first housing 3100 includes a first housing portion I 3101 and a first housing portion II 3102. The first magnet 311 is embedded in the first housing portion I 3101, and the first housing portion II 3102 covers the first housing portion I 3101, so that the first magnet 311 is installed in a relatively closed space. This protects the first magnet 311 and prevents it from being damaged or broken due to collisions or other reasons.

[0142] As shown in Figures 11(c) and 11(d), the second connecting structure 320 includes a second shell 3200, in which a second magnet 321 is provided. The second shell 3200 includes a second shell portion I 3201 and a second shell portion II 3202, wherein the second magnet 321 is embedded in the second shell portion I 3201, and the second shell portion II 3202 is covered on the second shell portion I 3201 so that the second magnet 321 is installed in a relatively closed space, thereby protecting the second magnet 321 and preventing the second magnet 321 from being damaged or broken due to collisions and the like. Specifically, the first connecting structure 310 and the second connecting structure 320 include abutting surfaces for abutting against the wearable component 400, so that when assembled, the first connecting structure 310 and the second connecting structure 320 abut against the wearable component 400 through the abutting surfaces.

[0143] In addition to the magnetic connection, the first connecting structure 310 and the second connecting structure 320 can also be detachably connected to the wearable component 400 through other connection methods. For example, in some embodiments, the first connecting structure 310 and the second connecting structure 320 are both snap-fitted to the wearable component 400, wherein the first connecting structure 310 and the second connecting structure 320 are both first snap-fitting structures, and at least two second snap-fitting structures are provided on the wearable component 400, and the first snap-fitting structure is snap-fitted to the second snap-fitting structure. Furthermore, in the first snap-fitting structure and the second snap-fitting structure, one is a slot and the other is a buckle. Since at least two second snap-fitting structures are provided on the wearable component 400, for this reason, the first connecting structure 310 and the second connecting structure 320 both have at least two installation positions on the wearable component 400.

[0144] As shown in Figures 12(a) to 13(a), the display assembly 100 includes a first housing 110 and a first cover 120. A first power supply module and a display module 140 are disposed within the first housing 110, and the first power supply module is electrically connected to the display module 140. The first cover 120 is mounted on the first housing 110 and is fixedly or detachably connected to the first connecting structure 310.

[0145] The first housing 110 includes a first opening 111, wherein the first cover 120 is disposed over the first opening 111, thereby sealing the first opening 111. In this embodiment, a magnetizable first attracting member 121 is provided on the first cover 120, wherein the first attracting member 121 can be fixed to the first cover 120 by bonding or other means. Because the first attracting member 121 is magnetizable, the first attracting member 121 and the first magnet 311 are attracted to each other under the action of the magnetic field, thereby achieving a detachable connection between the first cover 120 and the first connecting structure 310. In some embodiments, the first cover 120 is made of a magnetizable material, in which case the first cover 120 does not need to be provided with the first attracting member 121. In other embodiments, the first connecting structure 310 can be fixedly or detachably connected to the first cover 120 by bonding, snapping, or other means.

[0146] The first power supply module includes a first battery module 131 and a first power supply circuit board 132, wherein the first battery module 131 is electrically connected to the first power supply circuit board 132. As shown in Figure 13(a), the display module 140 includes a first main control circuit board 141, a microdisplay 142, and an optical module 143. The first main control circuit board 141 is electrically connected to the microdisplay 142 and the first power supply circuit board 132. The optical module 143 is disposed on the light-emitting side of the microdisplay 142 and is used to allow light emitted by the microdisplay 142 to pass through the optical module 143. The optical module 143 can be an optical lens. The microdisplay 142 can be one of Micro-LED (Micro Light-Emitting Diode), uLED (Micro Light Emitting Diode), Micro-oled (Micro Organic Light-Emitting Diode), LCoS (Liquid Crystal On Silicon), LCD (Liquid Crystal Display), DMD (Digital Micromirror Device), DLP (Digital Light Processing) or LBS (Laser Beam Scanning), or any combination of these technologies.

[0147] As shown in Figure 9(c), the top of the first housing 110 includes a translucent light-emitting portion 112. One side of the optical module 143 faces the microdisplay 142, while the other side faces the light-emitting portion 112. The light-emitting portion 112 and the first opening 111 are located on opposite sides of the thickness of the first housing 110. When the microdisplay 142 is activated, light emitted from the microdisplay 142 passes through the optical module 143 and is emitted from the light-emitting portion 112 to the outside of the first housing 110.

[0148] As shown in Figure 13(a), in this embodiment, the first power supply circuit board 132, the first main control circuit board 141, and the microdisplay 142 constitute the first electrical system 101. In the figure, the first power supply circuit board 132, the first main control circuit board 141, and the microdisplay 142 are arranged sequentially from bottom to top. A mounting bracket 150 is provided on the microdisplay 142, wherein the optical module 143 is mounted on the mounting bracket 150. A first antenna module 160 is provided on the side of the first main control circuit board 141. The first antenna module 160 is used to establish a wireless communication connection with the data acquisition component 200, thereby enabling signal transmission between the display component 100 and the data acquisition component 200. Wireless communication can be achieved using a wireless communication module such as a Bluetooth module or a Wi-Fi module, wherein the wireless communication module can be integrated into the corresponding circuit board. In this embodiment, both the first main control circuit board 141 and the second functional circuit board I 241 are integrated with a wireless communication module. The first battery module 131 is used to supply power to the first electrical system 101. The first battery module 131 is arc-shaped or ring-shaped, and an accommodation space is formed therein. The first electrical system 101 is located in the accommodation space, thereby saving installation space.

[0149] In this embodiment, the first battery module 131 has a ring-shaped structure and surrounds the display module 140 and the first power supply circuit board 132. In other embodiments, the first battery module 131 has a sheet-like structure and is parallel to the first power supply circuit board 132, wherein the first battery module 131 can be mounted on the first power supply circuit board 132.

[0150] The first housing 110 can be entirely made of a translucent material. To prevent light leakage from areas other than the light exit portion 112, an opaque light shielding member 170 can be provided inside the first housing 110. The light shielding member 170 is a hollow cylindrical structure and is mounted on the outside of the first battery module 131. The light shielding member 170 is arranged along the thickness direction of the first housing 110. A waterproof breathable membrane 180 can be provided on the side of the first electrical system 101. The waterproof breathable membrane 180 provides both waterproof and breathable functions, thereby dissipating heat generated by the first electrical system 101 during operation and preventing external water from entering the interior of the first housing 3100 and causing a short circuit in the first electrical system 101. The first battery module 131, the light shielding member 170, and the first housing 110 can be provided with a breathable structure corresponding to the waterproof breathable membrane 180. The breathable structure includes holes or grooves. The waterproof breathable membrane 180 can cover the breathable structure of the first housing 110. The ventilation structure of the first housing 110 is not shown in the drawings. It should be noted that the waterproof breathable membrane 180 in the drawings is only to illustrate the relative positional relationship between the waterproof breathable membrane 180 and the first electrical system 101, and does not mean that the waterproof breathable membrane 180 is disposed on the first electrical system 101.

[0151] As shown in Figures 12(b) to 13(b), the data acquisition component 200 includes a second housing 210 and a second cover 220. A second power supply module and a second functional circuit board are provided inside the second housing 210, and the second power supply module is electrically connected to the second functional circuit board. The data acquisition module 250 is provided inside or outside the second housing 210. For example, the camera, acceleration sensor, and infrared sensor in the data acquisition module 250 are provided inside the second housing 210, and the touch module in the data acquisition module 250 is provided outside the second housing 210.

[0152] The data acquisition module 250 is electrically connected to the second functional circuit board. The data acquisition module 250 can be integrated with the second functional circuit board to form an integrated structure, or / and the data acquisition module and the second functional circuit board can be separate structures. For example, a camera, accelerometer, and infrared sensor can be integrated with the second functional circuit board. The touch module needs to be mounted on the exterior of the second housing 210. For ease of installation, the touch module and the second functional circuit board must be separate structures and cannot be directly integrated with the second functional circuit board.

[0153] The second cover 220 is mounted on the second housing 210, and the second cover 220 is fixedly connected or detachably connected to the second connecting structure 320. The second housing 210 includes a first opening and a second opening, wherein the second cover 220 covers the second opening 211, thereby closing the first opening 111. In this embodiment, a magnetizable second attracting member 221 is provided on the second cover 220, wherein the second attracting member 221 can be fixed to the second cover 220 by bonding or other means. Since the second attracting member 221 can be magnetized, under the action of the magnetic field force, the second attracting member 221 and the second magnet 321 attract each other, thereby achieving a detachable connection between the second cover 220 and the second connecting structure 320. In some embodiments, the second cover 220 is made of a magnetizable material, so that there is no need to additionally provide a second attracting member 221 on the second cover 220.

[0154] In some other embodiments, the second connection structure 320 may be fixedly or detachably connected to the second cover 220 by bonding, snapping, or the like.

[0155] The second power supply module includes a second battery module 231 and a second power supply circuit board 232, wherein the second battery module 231 is electrically connected to the second power supply circuit board 232. In this embodiment, the second battery module 231 has a ring-shaped structure and surrounds the second power supply circuit board 232 and the second functional circuit board. In other embodiments, the second battery module 231 has a sheet-like structure and is parallel to the second power supply circuit board 232 and the second functional circuit board. The second battery module 231 can be mounted on the second power supply circuit board 232.

[0156] The second functional circuit board is electrically connected to the second power supply circuit board 232. Referring to FIG12 , in this embodiment, there are two second functional circuit boards, namely, second functional circuit board I 241 and second functional circuit board II 242. The data acquisition module 250 includes a camera 251 and an ambient light sensor 252. The data acquisition module 250 integrated with the second functional circuit board I 241 is the camera 251, and the data acquisition module 250 integrated with the second functional circuit board II 242 is the ambient light sensor 252. The camera 251 passes through the second functional circuit board II 242.

[0157] A second antenna module 260 is provided on the side of the second functional circuit board I 241 . The second antenna module 260 is used to establish a wireless communication connection with the display component 100 , thereby realizing signal transmission between the display component 100 and the data acquisition component 200 .

[0158] As shown in Figure 13(b), in this embodiment, the second power supply circuit board 232 and the second functional circuit board constitute the second electrical system 201. The second battery module 231 is used to supply power to the second electrical system 201. The second battery module 231 is arc-shaped or annular, and defines a storage space within it. The second electrical system 201 is located in the storage space, thereby saving installation space.

[0159] The second housing 3200 is further provided with an opaque inner cylinder 270 , wherein the second battery module 231 and the second electrical system 201 are both located inside the inner cylinder 270 . The inner cylinder 270 can cover and reinforce the second housing 3200 .

[0160] This embodiment also provides a wearable device comprising a wearable component 400 and the aforementioned near-eye display device. The wearable component 400 is intended to be worn on the user's head and may include glasses, a helmet, or the like. Both the display assembly 100 and the data acquisition assembly 200 are detachably connected to the wearable component 400.

[0161] Referring to Figure 10 , in this embodiment, the wearable device 400 is a pair of glasses, wherein the display assembly 100 and the data acquisition assembly 200 can be mounted on the inside and outside of the frame, respectively. The frame can be made of a magnetizable metal material. Thus, the display assembly 100 is magnetically attracted to the frame via a first connection structure 310, and the data acquisition assembly 200 is magnetically attracted to the frame via a second connection structure 320. In other embodiments, the display assembly 100 and the data acquisition assembly 200 can also be mounted simultaneously on the inside of the frame.

[0162] As shown in FIG14 , in this embodiment, a method for controlling a near-eye display device is further proposed. The method is applied to the near-eye display device mentioned above, and the method includes:

[0163] S1, when it is determined that the first connection structure 310 and the second connection structure 320 are located on different sides of the wearable component 400, the data acquisition component 200 is configured to acquire first data, and the display component 100 is configured to perform a first display based on the first data;

[0164] S2, when it is obtained that the first connection structure 310 and the second connection structure 320 are simultaneously located on the same side of the wearable component 400, the data acquisition component 200 is configured to obtain second data, and the display component 100 is configured to perform a second display based on the second data.

[0165] Example 2

[0166] The main difference between this embodiment and the embodiment is that the near-eye display device includes a mounting frame.

[0167] As shown in FIG9( d ), the mounting frame of the near-eye display device includes a first extension section 520 , a second extension section 530 and a connecting section 540 , and the connecting section 540 connects the first extension section 520 and the second extension section 530 , respectively.

[0168] The first end of the first extension section 520 is connected to the first connecting structure 310, and the second end of the first extension section 520 is connected to the connecting section 540. The first end and the second end of the first extension section 520 are respectively disposed at two ends of the first extension section 520. Specifically, the first end of the first extension section 520 may be provided with a hole structure, and the first connecting structure 310 is inserted into the hole structure, thereby achieving installation of the display assembly 100.

[0169] The first end of the second extension section 530 is connected to the second connecting structure 320, and the second end of the second extension section 530 is connected to the connecting section 540. The first and second ends of the second extension section 530 are located at opposite ends of the second extension section 530. Specifically, the first end of the second extension section 530 may be provided with a hole structure, and the second connecting structure 320 may be inserted into the hole structure to achieve installation of the data acquisition assembly 200. In some embodiments, the first extension section 520, the second extension section 530, and the connecting section 540 may be an integrally formed structure, or the first extension section 520, the second extension section 530, and the connecting section 540 may be formed as separate connected parts.

[0170] The first extension section 520 and the second extension section 530 are spaced apart to form a gap 510 . The gap 510 is used to accommodate the wearing component 400 .

[0171] During assembly, the display assembly 100 is connected to the first end of the first extension section 520 via the first connection structure 310, and the data acquisition assembly 200 is connected to the first end of the second extension section 530 via the second connection structure 320, thereby installing both the display assembly 100 and the data acquisition assembly 200 on the mounting frame. Subsequently, the corresponding portion of the wearable component 400 is inserted into the gap 510, thereby clamping and fixing the mounting frame to the wearable component 400, thereby completing the assembly between the mounting frame and the wearable component 400. In addition, when the near-eye display device is not needed, the mounting frame can be clamped and fixed to a place such as a braid or necklace to facilitate user placement and removal.

[0172] In some embodiments, the first extension section 520 and the second extension section 530 include an elastic material. For example, the first extension section 520 and the second extension section 530 can be made of an elastic material such as silicone or rubber. Since the first extension section 520 and the second extension section 530 are elastic, when the mounting bracket is assembled with the wearable component 400, the first extension section 520 and the second extension section 530 can be bent and deformed to make the connection between the first extension section 520 and the second extension section 530 and the wearable component 400 more secure and stable. In addition, since the first extension section 520 and the second extension section 530 are elastic, the mounting bracket can protect the display component 100 and the data acquisition component 200.

[0173] The first extension section 520 and the second extension section 530 can be configured to allow them to move closer or further away from each other to adjust the size of the gap 510. For example, the first extension section 520 and the second extension section 530 made of elastic material can be elastically stretched apart under the action of an external force, and elastically moved closer when no external force is applied. In this way, the size of the gap 510 can be adjusted so that the placement frame can be adapted to different wearing items to achieve clamping and fixation. In other embodiments, the length of the connecting section 540 is adjustable, so that the size of the gap 510 can be adjusted by adjusting the length of the connecting section 540.

[0174] Existing smart head-mounted near-eye display devices include VR, AR, and XR devices. They typically include an optical module, a circuit board, a power supply, and a display module for displaying images. Taking optical waveguide smart glasses as an example, the display module, optical module, and power supply module are generally designed on the temples. An optical system at the temple corners converts the light path to the waveguide lens's incoupling zone, allowing the user to view relevant content through the outcoupling zone. When worn, the temples of these products rest against the head or temples. Heat generated by the display module, circuit board, and power supply needs to be dissipated through heat sinks (e.g., copper sheets), further increasing weight. To balance the weight of the left and right temples, metal counterweights are further required. Ultimately, near-eye display devices are heavier than standard glasses, making them burdensome to wear for extended periods. Effectively designing the spatial and even electrical layout of these components is a pressing issue.

[0175] To solve the above-mentioned related problems, a first aspect of an embodiment of the present application provides a circuit board module, which is applied to a near-eye display module, including a main circuit board, a first circuit board, and a second circuit board connected in sequence; one of the first circuit board and the second circuit board is used to be electrically connected to the positive pole of the battery, and the other is used to be electrically connected to the negative pole of the battery; the main circuit board is configured to be electrically connected to the display module;

[0176] The main circuit board is electrically connected to the first circuit board via a first flexible connection portion, and the first circuit board is electrically connected to the second circuit board via a second flexible connection portion. The main circuit board, the first circuit board, and the second circuit board are configured to allow folding relative to each other for a stacked arrangement, and the first circuit board and the second circuit board are configured to clamp the battery between the first circuit board and the second circuit board.

[0177] A second aspect of an embodiment of the present application provides a near-eye display module, comprising a shell, a cover, a display module and the circuit board module as described above, wherein the shell and the cover form a accommodating cavity, the display module and the circuit board module are installed inside the shell, and the display module is light-transmissive in the portion facing the shell or the cover.

[0178] The beneficial effects of the present application include: a circuit board module proposed in the present application is applied to a near-eye display module, comprising a main circuit board, a first circuit board, and a second circuit board electrically connected in sequence, wherein the electrical connection with the battery is achieved through the first circuit board and the second circuit board. The main circuit board is connected to the first circuit board via a first flexible connection portion, and the first circuit board is connected to the second circuit board via a second flexible connection portion. To this end, the first flexible connection portion and the second flexible connection portion can be bent so that the main circuit board, the first circuit board, and the second circuit board can be superimposed, thereby achieving folding of the circuit board module and reducing the space occupied by the circuit board module.

[0179] Example

[0180] Referring to Figures 15-18 , in this embodiment, a circuit board module is provided for use in a near-eye display module 100. The module includes a main circuit board 1010, a first circuit board 1020, and a second circuit board 1030, which are sequentially connected. Of the first circuit board 1020 and the second circuit board 1030, one is electrically connected to the positive terminal of a battery 131, and the other is electrically connected to the negative terminal of the battery 131. The main circuit board 1010 is configured to be electrically connected to the display module 140. The connection between the main circuit board 1010 and the display module 140 can be direct or indirect. The battery 131 can be a button cell, for example. Power is supplied to the circuit board module via the battery 131, thereby enabling the operation of the components on the circuit board module. The main circuit board 1010 and the first circuit board 1020 are electrically connected via a first flexible connector 710, and the first circuit board 1020 and the second circuit board 1030 are electrically connected via a second flexible connector 720. The main circuit board 1010 , the first circuit board I200 and the second circuit board 1030 are configured to allow folding with each other to be stacked, and the first circuit board 1020 and the second circuit board 1030 are configured to sandwich the battery 131 between the first circuit board 1020 and the second circuit board 1030 .

[0181] 19 , since the first flexible connection portion 710 and the second flexible connection portion 720 can both be fully deformed, the main circuit board 1010, the first circuit board 1020 and the second circuit board 1030 can be overlapped by bending the first flexible connection portion 710 and the second flexible connection portion 720, so that the circuit board module can be installed in a smaller space.

[0182] 15-18 , the main circuit board 1010, the first circuit board 1020, and the second circuit board 1030 are arranged in a straight line when fully unfolded. Referring to FIG. 19 , the main circuit board 1010, the first circuit board 200, and the second circuit board 1030 are arranged coaxially when fully folded, wherein the main circuit board 1010, the first circuit board 1020, and the second circuit board 1030 are parallel to each other when fully folded. For ease of description, the surfaces of the main circuit board 1010, the first circuit board 1020, and the second circuit board 1030 are defined as follows: the main circuit board 1010 includes an A surface 1011 and an A' surface 1012, located on either side of its thickness; the first circuit board 1020 includes a B surface 1021 and a B' surface 1022, located on either side of its thickness; and the second circuit board 1030 includes a C surface 1031 and a C' surface 1032, located on either side of its thickness. When the first flexible connection portion 710 and the second flexible connection portion 720 are both in an unbent state, the A surface 1011, the B surface 1021, and the C surface 1031 are all oriented toward the same side. Referring to FIG. 19 , the thickness directions of the main circuit board 1010, the first circuit board 1020, the second circuit board 1030, and the plug-in circuit board 1040 are all parallel to the direction indicated by the arrow x in the figure.

[0183] In one embodiment, the first flexible connection portion 710 and the second flexible connection portion 720 are configured to bend and deform to configure the main circuit board 1010, the first circuit board 1020, and the second circuit board 1030 to be stacked in sequence. On the A surface (101) and the A' surface (102) on both sides of the main circuit board 1010 in the thickness direction, one is provided with a control circuit 1013, and the other is provided with a battery conversion circuit (120). The side of the first circuit board 1020 facing the main circuit board 1010 is not provided with electronic components and conductive parts. Specifically, the surface can also be provided with an insulating layer to improve the insulation effect. The side of the first circuit board 1020 facing away from the main circuit board 1010 is provided with a first terminal 1023, and the side of the second circuit board 1030 facing the first circuit board 1020 is provided with a second terminal 1033. The side of the second circuit board 1030 facing away from the first circuit board 1020 is not provided with electronic components and conductive parts. Battery 131 is disposed between first circuit board 1020 and second circuit board 1030 and electrically connects first terminal 1023 and second terminal 1033. Referring to Figure 19 , the side of first circuit board 1020 facing away from main circuit board 1010 is B' side 1022; the side of second circuit board 1030 facing toward first circuit board 1020 is C' side 1032; and the side of second circuit board 1030 facing away from first circuit board 1020 is C' side 1031.

[0184] 15 and 16 , it can be understood that the first flexible connection portion 710 and the second flexible connection portion 720 are located on opposite sides of the first circuit board 1020, wherein the first flexible connection portion 710 and the second flexible connection portion 720 are configured to bend and deform to configure the A surface 1011, the A' surface 1012, the B' surface 1022, the B surface 1021, the C surface 1031 and the C' surface 1032 to be stacked in sequence; among the A surface 1011 and the A' surface 1012, a control circuit 1013 is provided on one and a battery conversion circuit 1014 is provided on the other; electronic devices and conductive parts are not provided on the B' surface 1022 and the C' surface 1032, a first terminal 1023 is provided on the B surface 1021, and a second terminal 1033 is provided on the C surface 1031; the battery 131 is provided between the B surface 1021 and the C surface 1031, and is electrically connected to the first terminal 1023 and the second terminal 1033.

[0185] In another embodiment, the first flexible connection portion 710 and the second flexible connection portion 720 are configured to be bent and deformed to configure the main circuit board 1010 , the second circuit board 1030 and the first circuit board 1020 to be stacked in sequence. On the A surface 1011 and the A' surface 1012 on both sides of the main circuit board (100) in the thickness direction, a control circuit 1013 is provided on one side, and a battery conversion circuit 1014 is provided on the other side; the second circuit board 1030 is not provided with electronic components and conductive components on the side facing the main circuit board 1010, and the second circuit board 1030 is provided with a second terminal 1033 on the side facing away from the main circuit board 1010; the first circuit board 1020 is provided with a first terminal 1023 on the side facing the second circuit board 1030, and is not provided with electronic components and conductive components on the side facing away from the second circuit board 1030. Specifically, an insulating layer may be provided on this surface to improve the insulation effect; the battery 131 is provided between the first circuit board 1020 and the second circuit board 1030, and is electrically connected to the first terminal 1023 and the second terminal 1033. For ease of understanding, on the circuit board module, each circuit board may be provided with a corresponding circuit structure and electronic components.

[0186] In some embodiments, a control circuit 1013 is provided on one of the A surface 1011 and the A' surface 1012, and a battery conversion circuit 1014 is provided on the other; a first terminal 1023 is provided on the B surface 1021 or the B' surface 1022, and a second terminal 1033 is provided on the C surface 1031 or the C' surface 1032.

[0187] In some embodiments, a control circuit 1013 is provided on the A surface 1011 or the A' surface 1012; a battery conversion circuit 1014 is provided on one of the B surface 1021 and the B' surface 1022, and a first terminal 1023 is provided on the other; and a second terminal 1033 is provided on one of the C surface 1031 and the C' surface 1032.

[0188] In some embodiments, a control circuit 1013 is provided on either the A side 1011 or the A' side 1012; a first terminal 1023 is provided on either the B side 1021 or the B' side 1022; and a battery conversion circuit 1014 is provided on either the C side 1031 or the C' side 1032, while a second terminal 1033 is provided on the other. The control circuit 1013 board includes a microprocessor and other components, and can perform signal processing. The battery conversion circuit 1014 converts the electrical energy transmitted by the battery 131 into the current and voltage required by the corresponding circuit structure and electronic components. Of the first terminal 1023 and the second terminal 1033, one is a positive terminal and the other is a negative terminal. The positive terminal is used to electrically connect to the positive pole of the battery 131, and the negative terminal is used to electrically connect to the negative pole of the battery 131.

[0189] In this embodiment, a control circuit 1013 is provided on surface A 1011, a battery conversion circuit 1014 is provided on surface A' 1012, a first terminal 1023 is provided on surface B' 1022, and a second terminal 1033 is provided on surface C' 1032. The first terminal 1023 is a positive terminal, and the second terminal 1033 is a negative terminal. Placing the control circuit 1013 and battery conversion circuit 1014 on the main circuit board 1010 reduces the distance between them, thereby shortening the current and signal propagation paths and avoiding adverse interference caused by excessively long propagation paths.

[0190] Since both sides of the main circuit board 1010 are provided with circuit structures, for this reason, the main circuit board 1010 adopts a rigid circuit board, for example, FR4 copper clad board (the full name in Chinese is glass fiber epoxy resin copper clad board). Other circuit boards in the circuit board module, including the first circuit board 1020, the second circuit board 1030, etc., can adopt flexible circuit boards or rigid circuit boards. Furthermore, the B side 1021 and / or the C side 1031 are not provided with electronic devices and conductive parts, thereby avoiding the contact of electronic devices or conductive parts on the two relative surfaces due to the folding of the circuit board module, causing short circuits and the like. In this embodiment, no electronic devices and conductive parts are provided on the B side 1021 and the C side 1031. Among them, electronic devices include capacitors, resistors, diodes, etc., and conductive parts include the first terminal 1023, the second terminal 1033, etc.

[0191] Referring to Figure 19 , after the first flexible connection portion 710 is bent and deformed, the A surface 1011 is opposite to the B surface 1021, and after the second flexible connection portion 720 is bent and deformed, the B' surface 1022 is opposite to the C' surface 1032. Since there are no electronic devices or conductive parts on the B surface 1021 and the C surface 1031, even if the A surface 1011 and the B surface 1021 are in contact or affixed, and the C surface 1031 is in contact or affixed with an external circuit or conductive object, no short circuit or the like will occur. This shows that when the circuit board module is installed, the space occupied by the folded circuit board module can be compressed to the maximum extent. It should be noted that Figure 19 is only for the purpose of illustrating the positional relationship of the various components, and the connection relationship between the terminals and the battery 131, etc., is not shown.

[0192] When the circuit board module is folded, the B' surface 1022 and the C' surface 1032 are positioned opposite each other, with the battery 131 positioned between the B' surface 1022 and the C' surface 1032. The positive electrode of the battery 131 is electrically connected to the positive terminal, and the negative electrode of the battery 131 is electrically connected to the negative terminal. The length of the second flexible connection portion 720 is no less than the thickness of the battery 131. This allows the second flexible connection portion 720 to adapt to the thickness of the battery 131, preventing the battery 131 from being unable to be installed between the B' surface 1022 and the C' surface 1032 due to the second flexible connection portion 720 being too short.

[0193] In one embodiment, the length of one of the first flexible connection portion 710 and the second flexible connection portion 720 is h3; the total height of the main circuit board 1010, the second circuit board 1030, and the first circuit board 1020 in a stacked state is h1, and the thickness of the battery 131 is h2; wherein h3>h1+h2. Referring to Figure 21(b), the main circuit board 1010, the first circuit board 1020, the second circuit board 1030, and the battery 131 are stacked as shown, wherein the length of the first flexible connection portion 710 is h3. This arrangement facilitates placing the battery 131 in a closed, surrounded state, thereby making the overall structure more stable. By arranging the battery 131 between the B' surface 1022 and the C' surface 1032, electrical connection between the battery 131 and the circuit board module is facilitated, avoiding additional wiring, and at the same time, achieving rational utilization of the corresponding space.

[0194] The maximum cross-sectional dimensions of the main circuit board 1010, the first circuit board 1020, and the second circuit board 1030 are each no greater than 10 mm, thereby further miniaturizing and lightweighting the circuit board module. Specifically, the cross-sectional areas of the first circuit board 1020 and the second circuit board 1030 are each smaller than the cross-sectional areas of the main circuit board 1010. In this embodiment, the cross-sectional dimensions of the main circuit board 1010, the first circuit board 1020, and the second circuit board 1030 are all circular; therefore, their diameters are no greater than 10 mm. In other embodiments, for example, where the cross-sectional dimensions of the main circuit board 1010 are rectangular, the distance between two diagonal corners of the main circuit board 1010 is no greater than 10 mm. The main circuit board 1010, the first circuit board 1020, and the second circuit board 1030 are all very small, and are connected together by the first and second flexible connectors 710 and 720, facilitating assembly. If the three components were independent, their small dimensions would make assembly difficult and inefficient. 19 , when projected parallel to arrow x, the projections of the main circuit board 1010 , the first circuit board 1020 and the second circuit board 1030 can overlap.

[0195] As shown in Figures 15-18, the circuit board module also includes a plug-in circuit board 1040. The plug-in circuit board 1040 is electrically connected to the main circuit board 1010 via a third flexible connector 730. The third flexible connector 730 is configured to bend and deform to allow the plug-in circuit board 1040 and the main circuit board 1010 to fold together and form a stacked arrangement. The display module 140 is electrically connected to the plug-in circuit board 1040. In the stacked arrangement, the display module 140 is slightly away from the main circuit board 1010. Placing the control circuit 1013 and the battery conversion circuit 1014 on the same circuit board has the following advantages: the electrical path between the control circuit 1013 and the battery conversion circuit 1014 is the shortest, facilitating wiring and signal transmission. This reduces electrical or adverse interference caused by cross-wiring and excessively long wiring, such as electromagnetic compatibility effects caused by other electrical components along the wiring, thereby maximizing electrical efficiency and improving circuit stability.

[0196] The plug-in circuit board 1040 can be disposed on the periphery of the main circuit board 1010 and is electrically connected to the main circuit board 1010 via the third flexible connector 730. The plug-in circuit board 1040 is provided with a first electrical connection structure 1043. The display module 140 includes a second electrical connection structure 1481, and the first and second electrical connection structures 1043 and 1481 are removably electrically connected. The display module 140 includes a microdisplay 142, a fourth flexible connector 740, and an electrical connector 148, which includes a second electrical connection structure 1481. The microdisplay 142 and the second electrical connection structure 1481 are electrically connected via the fourth flexible connector 740. The fourth flexible connector 740 is configured to bend and deform to allow the microdisplay 142, plug-in circuit board 1040, and electrical connector 148 to fold over each other and be stacked sequentially.

[0197] Furthermore, the display module 140 also includes a base 1421, a mounting circuit board 1482, and a protective cover 1483. The microdisplay 142 is electrically connected to the mounting circuit board 1482 via the fourth flexible connector 740. The microdisplay 142 is disposed on the base 1421. The base 1421 is configured to be mounted on the side of the plug-in circuit board 1040 facing away from the main circuit board 1010. The protective cover covers the mounting circuit board 1482. The second electrical connection structure 1481 and the protective cover 1483 are located on either side of the mounting circuit board 1482 in the thickness direction. The microdisplay 142 and the protective cover 1483 are located on the same side.

[0198] In this embodiment, the pluggable circuit board 1040 includes a D-surface 1041 and a D'-surface 1042, located on either side of the circuit board's thickness. The third flexible connection portion 730 is deformed by bending so that the A'-surface 1012 and the D'-surface 1042 face each other. Referring to Figures 15-18 , when the third flexible connection portion 730 is in an unbent state, the A-surface 1011 and the D-surface 1041 face the same side.

[0199] After the circuit board module is folded, the main circuit board 1010, the first circuit board 1020, the second circuit board 1030, and the plug-in circuit board 1040 can be parallel to each other. The size of the plug-in circuit board 1040 can be smaller than that of the main circuit board 1010, thereby reducing the space occupied by the plug-in circuit board 1040.

[0200] The display module 140 is detachably mounted on the plug-in circuit board 1040. A first electrical connection structure 1043 is provided on the D' surface 1042. The display module 140 includes a second electrical connection structure 1481. The first electrical connection structure 1043 and the second electrical connection structure 1481 are detachably electrically connected. The first electrical connection structure 1043 and the second electrical connection structure 1481 can be male and female connectors of electrical connectors, respectively. The first electrical connection structure 1043 and the second electrical connection structure 1481 can be electrically connected by plugging or other methods.

[0201] The pluggable circuit board 1040 may also be provided with a reinforcement sheet, for example, on the D surface 1041. The shape of the reinforcement sheet can be the same as that of the pluggable circuit board 1040 or the same as that of the first electrical connection structure 1043. The reinforcement sheet can be made of a material with greater rigidity or strength than the flexible connection portion 740. This can improve the structural strength of the pluggable circuit board 1040 and reduce the risk of damage to the pluggable circuit board 1040 when the first electrical connection structure 1043 and the second electrical connection structure 1481 are plugged into each other. In some embodiments, the reinforcement sheet can be provided on a side facing away from the first electrical connection structure 1043, embedded between the pluggable circuit board 1040, or located on the same side as the first electrical connection structure 1043.

[0202] As shown in FIG20 , the display module 140 includes a microdisplay 142 and an electrical connection portion 148. The electrical connection portion 148 is configured to be mounted on the D′ surface 1042. The microdisplay 142 is electrically connected to a second electrical connection structure 1481 via a fourth flexible connection portion 740. The electrical connection portion 148 includes a second electrical connection structure 1481.

[0203] The first flexible connection portion 710, the second flexible connection portion 720, the third flexible connection portion 730 and the fourth flexible connection portion 740 are configured to bend and deform to configure the microdisplay 142, the plug-in circuit board 1040, the electrical connection portion 148, the main circuit board 1010, the first circuit board 1020 and the second circuit board 1030 to be folded with each other for a stacked arrangement, and the side of the main circuit board 1010 facing the plug-in circuit board 1040 includes a preset area.

[0204] Furthermore, the first flexible connection portion 710, the second flexible connection portion 720, the third flexible connection portion 730, and the fourth flexible connection portion 740 are configured to bend and deform to configure the microdisplay 142, the plug circuit board 1040, the electrical connection portion 148, the main circuit board 1010, the first circuit board 1020, and the second circuit board 1030 to be folded relative to each other and stacked. The microdisplay 142, the plug circuit board 1040, the main circuit board 1010, the first circuit board 1020, and the second circuit board 1030 are arranged parallel to each other and coaxially. The plug circuit board 1040 is smaller than the main circuit board 1010. This structural arrangement facilitates the assembly of the circuit board module into the housing and allows the generated light to be emitted from the center of the housing. In other embodiments, the microdisplay 142 may also be eccentrically arranged relative to one of the main circuit board 1010, the first circuit board 1020 and the second circuit board 1030 or the entirety. For example, the microdisplay 142 is eccentrically arranged relative to the main circuit board 1010, or when the main circuit board 1010, the first circuit board 1020 and the second circuit board 1030 are coaxially arranged as a whole, the microdisplay 142 is eccentrically arranged relative to the entirety thereof, thereby reducing the wiring of the microdisplay 142. In addition, when the near-eye display module is installed on, for example, a lens or on a frame, it is beneficial to the angle of incident light entering the human eye after the microdisplay 142 passes through the optical module.

[0205] In some embodiments, the first flexible connection portion 710 , the second flexible connection portion 720 , the third flexible connection portion 730 , and the fourth flexible connection portion 740 all include flexible wires, wherein the flexible wires can be used to transmit electrical energy and / or signals.

[0206] In some embodiments, the first flexible connection portion 710, the second flexible connection portion 720, the third flexible connection portion 730, and the fourth flexible connection portion 740 all utilize flexible printed circuits, wherein copper-clad wires are printed on the flexible printed circuits to enable transmission of electrical energy and / or signals. The lengths of the first flexible connection portion 710, the second flexible connection portion 720, the third flexible connection portion 730, and the fourth flexible connection portion 740 must be appropriately configured. If they are too long, redundancy will occur and additional space will be required. If they are insufficiently long, after the circuit board module is folded, the distance between the two adjacent circuit boards will not be adjusted to accommodate the corresponding electronic components and / or assemblies due to the insufficient length of the corresponding flexible connection portions.

[0207] The microdisplay 142 can be one of Micro-LED (Micro Light-Emitting Diode), uLED (Micro Light-Emitting Diode), Micro-oled (Micro Organic Light-Emitting Diode), LCoS (Liquid Crystal On Silicon), LCD (Liquid Crystal Display), DMD (Digital Micromirror Device), DLP (Digital Light Processing) or LBS (Laser Beam Scanning), or any combination of these technologies. The microdisplay 142 is set on a base 1421, and the base 1421 is used to be installed on the D surface 1041, wherein the light emitting side of the microdisplay 142 is facing away from the base 1421 and the D surface 1041. The base 1421 can be fixed to the D surface 1041 by bonding, screw connection, etc. 19 , the arrow p indicates the light-emitting side of the microdisplay 142 , wherein all light generated by the microdisplay 142 is emitted through the light-emitting side.

[0208] In this embodiment, the electrical connection portion 148 includes a second electrical connection structure 1481, a mounting circuit board 1482, and a protective cover 1483. The second electrical connection structure 1481 and the protective cover 1483 are both disposed on the mounting circuit board 1482. The second electrical connection structure 1481 and the protective cover 1483 are disposed on opposite sides of the mounting circuit board 1482 in the thickness direction. In some embodiments, the protective cover 1483 is non-conductive and can be made of, for example, a non-conductive material such as resin or plastic.

[0209] In some embodiments, the protective cover 1483 is conductive, and an insulating structure is provided on the outer surface of the protective cover 1483. For example, the protective cover 1483 can be made of metal or other materials. After the circuit board module is folded, the protective cover 1483 is opposite to the A' surface 1012. By providing an insulating structure on the outer surface of the protective cover 1483, the occurrence of short circuits and the like due to the contact between the protective cover 1483 and the A' surface 1012 can be avoided. Among them, the insulating structure includes an insulating film or an insulating coating, etc. The A' surface 1012 includes a preset area, and the protective cover 1483 of the electrical connection part 148 is opposite to the preset area. Referring to Figure 19, the preset area is located directly below the electrical connection part 148. When the electrical connection part 148 is projected onto the A' surface 1012, the projection of the electrical connection part 148 coincides with the preset area. In some embodiments, no components are provided in the preset area. This can prevent the overlap of components and the electrical connection portion 148 from increasing the distance between the A′ surface 1012 and the D′ surface 1042 , which in turn increases the space occupied by the circuit board module.

[0210] In some embodiments, a first component and a second component are disposed on the side of the main circuit board 1010 facing the plug-in circuit board 1040. The first component is disposed outside a predetermined area, and the second component is disposed within the predetermined area. The sum of the heights of the second component and the electrical connection portion 148 is no greater than the height of the first component. When the circuit board module is folded, in order to accommodate the first component, the distance between the A' surface 1012 and the D' surface 1042 must not be less than the height of the first component. Since the sum of the heights of the second component and the electrical connection portion 148 is no greater than the height of the first component, the superposition of the second component and the electrical connection portion 148 does not increase the distance between the A' surface 1012 and the D' surface 1042. It should be noted that the first component and the second component are not shown in the accompanying drawings.

[0211] In this embodiment, the A' surface 1012 is disposed opposite to the D' surface 1042. When projected toward the A' surface 1012, the projection of the plug-in circuit board 1040 does not exceed the A' surface 1012, thereby ensuring reasonable use of space.

[0212] As shown in Figure 19, the circuit board module also includes an antenna module 160, which can be positioned on the outer peripheral surface of the main circuit board 1010. The antenna module 160 enables wireless signal transmission and reception. The antenna module 160 extends toward the side of the plug-in circuit board 1040. When projected directly onto the D' surface 1042, the projection of the antenna module 160 does not fall on the D' surface 1042. The antenna module 160 is electrically connected to the main circuit board 1010 and is configured to be foldable relative to the main circuit board 1010 and stacked on the main circuit board 1010 and the plug-in circuit board 1040. In some embodiments, the antenna module 160 can be positioned perpendicular to the A' surface 1012. This positioning of the antenna module 160 prevents it from being surrounded or blocked by the circuit board, thereby facilitating signal transmission and reception.

[0213] Referring to FIG. 21( a ), this embodiment also provides a near-eye display module 100, comprising a housing 110, a cover 120, a display module 140, and the aforementioned circuit board module. The housing 110 and the cover 120 form a receiving cavity, and the display module 140 and the circuit board module are mounted within the receiving cavity within the housing 110. The housing 110 or the cover 120 is partially transparent to the display module 140. Multiple retaining posts are circumferentially disposed within the housing 110, and at least a portion of the side surfaces of the circuit board module engage with the retaining posts, enabling positioning and securing of the circuit board module. The housing 110 also includes a battery window 1111, which is configured to allow opening to remove the battery 131.

[0214] In the existing technology, the overall size and weight of the near-eye display module are large, which brings inconvenience to the user during use, fails to meet the needs of miniaturization and lightweight use, and affects the user experience.

[0215] This application proposes a circuit assembly and a near-eye display module. The circuit boards are connected by flexible connecting parts and adopt an integrated folding design, which effectively reduces the volume of the circuit boards to optimize the user's adaptation experience.

[0216] In the first aspect, the present application provides a circuit assembly, comprising: a plug board provided with a plug socket, configured to be electrically connected to a display assembly; a main control board, electrically connected to the plug board, the main control board comprising a first surface and a second surface arranged opposite to the first surface, the first surface being provided with a first functional circuit, the second surface being provided with a second functional circuit, the first functional circuit and the second functional circuit being electrically connected; a power board, electrically connected to the first functional circuit and the second functional circuit of the main control board, configured to allow electrical connection to a battery; and a plurality of bendable flexible connection parts, electrically connecting the plug board and the main control board, electrically connecting the main control board and the power board, wherein the flexible connection parts are configured to allow the plug board, the main control board and the power board to be folded relative to each other, and the flexible connection parts are also configured to allow the plug board, the main control board and the power board to be unfolded relative to each other.

[0217] On the second aspect, the present application also provides a near-eye display module, including a circuit component and a display component as described above: the display component includes a microdisplay and a plug that matches the socket; the microdisplay is electrically connected to the plug; the microdisplay is connected to the plug board through the connection between the plug and the socket, and the microdisplay is arranged on the side of the plug board away from the socket; a protective cover is provided on the plug. Beneficial effects: The integrated design of the plug board, the main control board and the power board adopted in the present application can effectively manage the circuit component as a whole, and flexible connection parts are provided at the connection points between each other to achieve relative flipping and folding between the circuit boards. After folding, the overall volume of the circuit component can be effectively compressed, and it has the characteristics of lightweight and miniaturization, and also has strong flexibility. The bendable characteristics of the flexible connection part not only support the mechanical deformation adaptation between components, but also ensure the stability of signal transmission through the multi-layer conductive structure. The protective cover design enhances the durability of the plug interface and prevents connection failure caused by physical damage.

[0218] An embodiment of the present application provides a circuit assembly that can be applied to a near-eye display module, as shown in Figures 22 to 31, including: a plug-in board 1, a main control board 2, an antenna board 4, a power board 3 and a plurality of bendable flexible connection parts 5; the plug-in board 1 is configured to be electrically connected to the display assembly 140; the main control board 2 is electrically connected to the plug-in board 1, and the main control board 2 includes a first surface and a second surface arranged opposite to the first surface, the first surface is provided with a first functional circuit, and the second surface is provided with a second functional circuit, and the first functional circuit and the second functional circuit are electrically connected; the first functional circuit and the second functional circuit can be different, for example, the first functional circuit includes a power circuit, and the second functional circuit includes a main control circuit. The power board 3 is electrically connected to the first functional circuit and the second functional circuit of the main control board 2, and the power board is configured to allow electrical connection to the battery 304; and the flexible connection portion 5 electrically connects the plug board 1 and the main control board 2, and electrically connects the main control board 2 and the power board 3, wherein the flexible connection portion 5 is configured to allow the plug board 1, the main control board 2 and the power board 3 to be folded relative to each other, and the flexible connection portion 5 is also configured to allow the plug board 1, the main control board 2 and the power board 5 to be unfolded relative to each other. It can be understood that

[0219] During design and production, an integrated design was implemented, with the overall circuit components arranged roughly in a straight line. It is understandable that the antenna board 4 is smaller than the main control board 2, and does not affect the straight line arrangement of the plug board 1, the main control board 2, the flexible connection portion 5, and the power board 3. In some embodiments, when fully expanded, the main control board 2 and the power board 3 are arranged in a straight line; when fully folded, the main control board 2 and the power board 3 are coaxially arranged. Full expansion here can be understood as pulling up under external force, and full folding can be understood as folding under the action of external force. The flexible connection portion 5 can be flexibly folded or pulled up to expand under the action of external force, thereby achieving the placement of each board.

[0220] The integration of circuit boards, including the plug board 1, main control board 2, antenna board 4, and power board 3, facilitates centralized management and maintenance of the circuit assembly. The circuit assembly also includes antenna board 4, which is electrically connected to the main control board 2 via a flexible connector 5. The flexible connector 5 is further configured to allow the antenna board 4 and the main control board 2 to fold relative to each other. The foldable angle range of the antenna board 4 relative to the main control board 2 is smaller than the foldable angle range of the power board 3 relative to the main control board 2. For example, the antenna board 4 can fold clockwise or counterclockwise between 0 and 120 degrees relative to the main control board 2, with a total foldable angle range of 240 degrees relative to the rotation axis. The power board 3 can fold clockwise or counterclockwise between 0 and 180 degrees relative to the main control board 2, with a total foldable angle range of 360 degrees relative to the rotation axis. Specifically, in some embodiments of the present application, the plug board 1 and the power board 3 may be made of flexible materials; the main control board 2 is provided with the power components 224 and the main control components 222, which are made of rigid materials;

[0221] For example, the main control board 2 can be made of glass fiber or polyimide. Glass fiber is a commonly used standard substrate material with good mechanical strength and insulation properties, while polyimide is a material with good high-temperature tolerance and is suitable for high-temperature environments. Of course, there is no limitation on the specific material of each circuit board.

[0222] A wire 51 is provided in each flexible connection part 5; the plug board 1 is electrically connected to the main control board 2 through the wire 51 of the flexible connection part 5; the main control board 2 is electrically connected to the power board 3 through the wire 51 of the flexible connection part 5; the main control board 2 is electrically connected to the antenna board 4 through the wire 51 of the flexible connection part 5; and the flexible connection parts 5 enable the plug board 1 and the main control board 2, the main control board 2 and the power board 3, and the main control board 2 and the antenna board 4 to be relatively folded.

[0223] Illustratively, the plug board 1 and the power board 3 can be folded at an angle relative to the main control board 2, for example, they can be folded to the front or back of the main control board 2, and the antenna board 4 can be folded at an angle relative to the main control board 2, for example, they can be folded to form a certain angle with the side of the main control board 2, such as a vertical angle, etc.; of course, there is no restriction on the specific folding angles of the plug board 1, the power board 3, and the antenna board 4.

[0224] Specifically, in some embodiments of the present application, as shown in Figures 26, 27 and 30, the antenna board 4 is arranged on the periphery of the main control board 2 and can be folded at an angle relative to the main control board 2. When the circuit board is stored and folded as a whole, the antenna board 4 is folded 90 degrees relative to the main control board 2, which makes full use of the vertical space of the circuit board, can effectively reduce the horizontal space occupied by the antenna board 4, can reduce the overall horizontal size of the circuit board, and when the folding angle of the antenna board 4 is 90 degrees, it can avoid that the antenna set on the antenna board 4 will not be surrounded or shielded by the circuit boards, which is beneficial to the antenna's signal transmission and reception.

[0225] The above design also implements the design concept of miniaturization and lightweighting, which can meet the user's demand for lightweightness, effectively reduce the weight of the smart head-mounted device, and reduce the volume of the near-eye display module. Specifically, in some embodiments of the present application, the overall size of the above-mentioned circuit boards is less than or equal to 1 cubic centimeter. Furthermore, a socket 133 is provided on one side of the plug board 1, and a reinforcing sheet 13 is provided on the other side of the plug board 1 to enhance the structural strength of the plug board 1.

[0226] Specifically, in some embodiments of the present application, as shown in Figure 26, the plug board 1 is provided with a reinforcing sheet 13 to strengthen the connection strength of the plug board 1. The reinforcing sheet 13 can be located on the side of the plug board 1 facing away from the plug socket 133. The rigidity of the reinforcing sheet 13 is greater than the rigidity of the flexible connection portion 5. For example, the reinforcing sheet 13 can be made of a rigid or hard material, such as rigid plastic, acrylic, insulating metal or the like. The provision of the reinforcing sheet 13 can increase the strength and rigidity of the plug board 1, improve the structural stability of the plug board 1, and reduce the risk of contact failure and breakage caused by vibration, impact or other external forces. The reinforcing sheet 13 is usually made of corrosion-resistant material and has good corrosion resistance. It can protect the plug board 1 from moisture, chemicals or other corrosive factors in the environment and extend its service life.

[0227] Furthermore, as shown in Figures 22 to 25, a power supply circuit 21 is provided on one side of the main control board 2. When the circuit component is flat, the side of the main control board 2 on which the power supply circuit 21 is provided extends to the side of the plug board 1 on which the plug socket 133 is provided; the other side of the main control board 2 is provided with a main control circuit 22, and the power supply circuit 21 and the main control circuit 22 can be respectively located on two opposite sides of the main control board 2.

[0228] The power supply circuit 21 is provided with power supply components 224, such as voltage and current conversion modules, etc., and the main control components 222, such as a main control unit and peripheral capacitors or resistors, etc., are provided on the main control circuit 22; when the plug-in board 1 and the main control board 2 are folded, the higher power supply components 224 are located outside the projection range of the protective cover 1483 on the main control board 2 and are not stacked with the protective cover 1483; it can effectively reduce the overall height of the stacked circuit components, so that the thickness of the stacked circuit components is as small as possible.

[0229] For example, the main control components 222 provided on the main control circuit 22 may include: a brain network main control chip, a crystal oscillator, resistors, capacitors and other peripheral devices to achieve the control function. The above-mentioned design of the positional relationship between the main control circuit 22 and the power supply circuit 21 places the main control circuit 22 and the power supply circuit 21 on the electrical path closest to the display assembly 140, which can prevent the power supply circuit 21 and the control circuit from being too far away from the display assembly 140, thereby reducing the adverse interference caused by the excessive electrical path;

[0230] In addition, the plug board 1, main control board 2, power board 3, and battery 304 are stacked, effectively reducing the overall size. The power board 3 is not provided with any components, making it less likely to cause a short circuit when stacked. It is understood that in some embodiments, when the plug board 1, main control board 2, power board 3, and antenna board 4 are in a first folded state, the plug board 1, main control board 2, and power board 3 are stacked in sequence. The first folded state can be a folded state after the installation position is determined. The plug board 1, main control board 2, and power board 3 are parallel to each other, and the antenna board 4 is perpendicular to the main control board 2 and / or the power board 3. That is, after folding, the antenna board 4 is at a 90° angle relative to the main control board 2. The side of the power board 3 facing the main control board 2 is not provided with any components and is electrically isolated from the main control board 2. The side of the power board 3 facing away from the main control board 2 is provided with polarity contacts. Moreover, the main control chip on the main control circuit 22 has a larger projected area, and the main control components 222 on the main control board 2 often need to occupy a larger area of ​​the main control board 2. Therefore, the main control circuit 22 and the power supply circuit 21 of the main control board 2 are respectively arranged on the two sides of the main control board 2, and the main control circuit 22 is arranged on the side away from the protective cover 1483. This can avoid the height overlap of electronic components and can effectively compress the volume of the folded circuit board to achieve lightweight and miniaturized design requirements.

[0231] Furthermore, as shown in FIG22 and FIG24 , a first polarity contact 301 and a second polarity contact 302 are provided on one side of the power board 3; one of the first polarity contact 301 and the second polarity contact 302 corresponds to the positive pole, and the other corresponds to the negative pole;

[0232] When the circuit assembly is flattened, the side of the power board 3 with the first polarity contact 301 and the second polarity contact 302 extends to the side of the plug board 1 with the socket 133. Typically, two power boards 3 are required, and since power boards 3 occupy a certain amount of space, the first polarity contact 301 and the second polarity contact 302 are located on the same side of the power board 3. The first polarity contact 301 and the second polarity contact 302 are electrically connected to the first functional circuit and the second functional circuit, and the first polarity contact and the second polarity contact are configured to be electrically connected to the battery. Only one power board 3 is required, reducing the number of power boards 3, saving space, making the design more compact, and further reducing the thickness and size of the overall circuit assembly after folding. By reducing the use of one power board 3, manufacturing costs can also be reduced. However, the corresponding battery 304 needs to have a positive and negative pole on the same side, and the battery can be a button cell battery, etc. The other side of the power board 3 is a flat structure. The flat structure and the design without electronic components can avoid short circuit problems that may occur when stacking. Secondly, the flat structure can also reduce the wear and scratches on the second side of the power board 3 against the main control components 222, thereby extending the service life of the main control components 222. Furthermore, as shown in Figures 22 to 25, Figures 28 and 29, the antenna board 4 is arranged on the side of the main control board 2 close to the power board 3. The design of the position of the antenna board 4 on the main control board 2 is helpful to a certain extent to avoid interference between the flexible connection part 5 connecting the plug board 1 and the main control board 2, and the flexible connection part 5 connecting the main control board 2 and the antenna board 4, and prevent the normal folding of the circuit components from being affected.

[0233] The plug board 1 is provided with a socket 133 for electrically connecting the display component 140. The circuits or components of the display component 140 itself may cause electromagnetic interference to the antenna. The antenna board 4 is set on the side close to the power board 3, which can actually be away from the display component 140 set on the plug board 1, thereby optimizing the antenna signal transmission effect.

[0234] The present application also provides a near-eye display module, as shown in Figures 26 and 27, including the above-mentioned circuit component and display component 140, the display component 140 including a micro display 142 and a plug 113 that matches the socket 133; the micro display 142 is electrically connected to the plug 113; the micro display includes but is not limited to Micro-LED (Micro Light-Emitting Diode, micro-luminescent semiconductor), Micro-oled (Micro Organic Light-Emitting Diode, micro organic light-emitting diode), LCoS (Liquid Crystal On Silicon, silicon-based liquid crystal), LCD (Liquid Crystal Display, liquid crystal display), DMD (Digital Micromirror Device, digital micromirror device) / DLP (Digital Light Processing, digital light processing) or LBS (Laser Beam Scanning), etc., or any combination of these technologies. The optical module 143 is located on the light-emitting side of the micro display 142 and is used to receive light from the micro display 142. Microdisplay 142 is connected to plug board 1 via the connection between plug 113 and socket 133. Microdisplay 142 is located on a side of plug board 1 away from socket 133. A protective cover 1483 is provided at a corresponding position of plug 113. For example, protective cover 1483 can be provided on the back of plug 113. Protective cover 1483 houses a microcontroller circuit electrically connected to microdisplay 142. This design can reduce the overall size of the device, saving space and making it more compact.

[0235] Furthermore, the length of the flexible connector 5 connecting the plug board 1 and the main control board 2 is greater than the combined thickness of the power circuit 21, the power board 3, and the protective cover 1483; the thickness of the power circuit 21 primarily comes from the power components 224; the length of the flexible connector 5 connecting the main control board 2 and the power board 3 is greater than the combined thickness of the main control circuit 22 and the main control board 2; the thickness of the main control circuit 22 primarily comes from the main control components 222; and the length of the flexible connector 5 connecting the plug board 1 and the main control board 2 is greater than the length of the flexible connector 5 connecting the main control board 2 and the power board 3. By ensuring that the length of the flexible connector 5 exceeds the combined thickness of the connected circuits and boards, the stability and reliability of the connection can be ensured, avoiding problems such as stretching, breakage, or poor contact caused by an overly short flexible connector 5, thereby improving system reliability. The longer length of the flexible connection part 5 can provide a larger bending radius and movable space, which can make the connection between the plug board 1, the main control board 2 and the power board 3 more flexible and adapt to different installation environments and layout requirements; it can also reduce the stress and pressure on the flexible connection part 5 and reduce the damage and wear caused by bending and movement.

[0236] Furthermore, as shown in FIG27 , the near-eye display module also includes a battery 304, a base plate 33, and a housing 34; the power board 3 is connected to the battery 304; the base plate 33 and the housing 34 form a storage space 313, and the folded circuit assembly, the display assembly 140, and the battery 304 are all arranged in the storage space 313. The use of the base plate 33 and the housing 34 can effectively protect the circuit assembly from the influence of the external environment, such as dustproof, moistureproof, shockproof, etc.; the base plate 33 and the housing 34 can not only protect the circuit assembly, but also provide mechanical support for the circuit assembly; this helps to strengthen the structural strength of the circuit assembly and improve its durability. By using the base plate 33 and the housing 34 for packaging, when maintenance or replacement is required, the housing 34 can be opened and the circuit assembly can be folded out from the base plate 33, which is convenient for repair and replacement. After the plug board 1, the main control board 2, the power board 3, and the antenna board 4 are folded in space, they can be packaged together to realize the stacking setting between the circuit boards, compress the volume space occupied by the circuit boards, and effectively reduce the impact of multiple circuit boards in terms of size. All electrical components can be electrically connected to the display assembly 140, so that the display assembly 140 can work independently in a sufficiently small size.

[0237] Specifically, in some embodiments of the present application, the diameter of the plug board 1, main control board 2, power board 3, and antenna board 4 is less than or equal to 10 mm. The maximum dimension of the plug board 1, main control board 2, power board 3, and antenna board 4 is less than or equal to 10 mm. For example, when the main control board 2 and power board 3 are circular, this dimension can be the diameter, and if they are rectangular or square, it can be the diagonal length. Each circuit board is miniaturized in size. All circuit boards are designed as an electrically connected whole. After folding, they are assembled together with the battery 304 in the housing to achieve packaging, achieving higher assembly efficiency. Among them, the size of the plug board 1 is smaller than that of the other circuit boards, and the size of the main control board 2 and power board 3 is the same. In the folded state, the circuit boards can be arranged parallel to each other. In other embodiments, the number of electrical components (such as positive and negative electrodes) of the power board 3 is much less than the number of electrical components (such as control chips, capacitors, resistors, inductors, etc.) of the main control board 2. Therefore, the size of the main control board 2 can be larger than that of the power board 3. This can further reduce the material of the circuit boards and reduce the overall weight.

[0238] The embodiments of the present application have at least the following beneficial effects: a flexible connection portion 5 is provided between the plug-in board 1, the main control board 2, the antenna board 4 and the power board 3, realizing an integrated design, and the circuit boards can be flipped and folded relative to each other, effectively reducing the overall space occupied by the circuit components, and having the characteristics of lightweight and miniaturization; a design is adopted to avoid thickness stacking, so that the thickness of the circuit boards after stacking is as small as possible.

[0239] Example 2

[0240] An embodiment of the present application provides a circuit assembly, as shown in Figures 28 and 29, comprising: a plug-in board 1, a main control board 2, an antenna board 4, a power board 3, and a plurality of bendable flexible connectors 5; a first polarity contact 301 is provided on the first surface of the power board 3, and a second polarity contact 302 is provided on the side wall 32 of the power board 3; one of the first polarity contact 301 and the second polarity contact 302 corresponds to the positive pole, and the other corresponds to the negative pole. Optionally, the first polarity contact 301 can correspond to the positive pole or the negative pole, and the second polarity contact 302 can correspond to the negative pole or the positive pole. The correspondence between the first polarity contact 301 and the second polarity contact 302 is not limited. Specifically, in some embodiments of the present application, the first polarity contact 301 corresponds to the positive pole, and the second polarity contact 302 corresponds to the negative pole.

[0241] The embodiment of the present application also provides a near-eye display module, as shown in Figures 30 and 31, including a circuit assembly, a battery 304 and a metal base 35; the polarity contact of the power board 3 includes a first polarity contact, and the first polarity contact is configured to cooperate with an external second polarity contact; wherein the external second polarity contact can be a polarity contact provided on the metal base 35. The first polarity contact and the second polarity contact are electrically connected to the first functional circuit and the second functional circuit, and the first polarity contact and the second polarity contact are configured to be electrically connected to the battery, wherein one of the first polarity contact and the second polarity contact corresponds to the positive pole and the other corresponds to the negative pole. That is, the metal base 35 can directly serve as a polarity contact electrically connected to the battery 304, for example, it can be one of the positive pole or the negative pole. The metal base 35 is provided with a housing cavity 303 for accommodating the circuit assembly, and the shape of the housing cavity 303 matches the shape of the circuit assembly in the folded state;

[0242] The battery 304 is respectively connected to the first polarity contact 301 and the metal base 35 on the power board 3; the metal base 35 itself serves as the second polarity contact 302 and is electrically connected to the battery 304. In other embodiments, the metal base 35 can also be indirectly connected to the second polarity contact 302 on the power board 3 to achieve electrical connection to the battery. The metal base 35 is conductive and can play a conductive role. The battery 304 no longer has the rigid requirement of setting the positive and negative poles on the same surface, has strong versatility, and improves adaptability. The rest is the same as in Example 1 and is not repeated here.

[0243] Near-eye display (NED) includes VR (Virtual Reality), AR (Augmented Reality), MR (Mixed Reality), and XR (Extended Reality). NED can create virtual images in the field of view of one or both eyes. NED uses a display device placed within the non-clear viewing distance of the human eye to render light field information to the human eye, thereby reconstructing the virtual scene in front of the human eye. In some cases, NED devices need to be able to simultaneously view environmental information. During the use of NED devices, environmental information will be blocked, affecting the normal use of the NED devices.

[0244] The present application provides a near-eye display device, which aims to improve the problem of near-eye display devices blocking environmental information. In order to achieve the above technical effects, a technical solution adopted by the present application is: providing a near-eye display device, comprising: a frame; an optical lens connected to the frame, the optical lens having a human eye side and an environmental side; a near-eye display module, arranged on the frame and located on the human eye side; and a polarizer, arranged on the light-emitting side of the near-eye display module, the polarizer being used to output the projection light beam of the near-eye display module into polarized light; wherein, the optical lens includes a transmission area and a transflective area, the transmission area surrounding the transflective area; wherein, the transflective area is configured to allow polarized light to be received from the polarizer and reflected toward the human eye side, and the transflective area is further configured to allow ambient light to penetrate from the environmental side and be transmitted toward the human eye side; the transmission area is configured not to allow polarized light to be received from the polarizer.

[0245] The above scheme uses a transflective area to reflect polarized light. At the same time, the transflective area has no effect on ambient light, so that a projection light beam that reflects the near-eye display module is formed on the optical lens and allows natural light to penetrate. As a result, the near-eye display module can be used for near-eye display without affecting the normal display of the near optical lens, and the use scenarios of the near-eye display device can be increased.

[0246] The near-eye display device of the present application can be a display device with a near-eye display function installed on an ordinary optical lens, or a display device with a near-eye display function installed on a processed optical lens. The processed optical lens described in the examples of the present application can be a lens with functions such as an optical waveguide, a holographic waveguide, etc. It is understandable that the near-eye display device in the examples of the present application can also include other functional components. For example, the near-eye display device can be a head-mounted display device, such as a helmet, and the near-eye display device can also include temples for connecting the optical lens or other support structures that can support the optical lens on the head so that the optical lens can be maintained in a preset position. In the prior art, due to the large size and weight of the imaging eyepiece and the compromised display capability, near-eye display device products are difficult to popularize. In the present application, the optical metasurface is a two-dimensional planar optical element composed of a large number of tiny and compact microstructures. Each microstructure is carefully designed and can modulate the incident light individually, so that the entire metasurface can be used to modulate and control optical properties such as the propagation direction, polarization state, and wavefront phase of light. Its physical principle is based on diffraction theory and phase modulation principle. Diffraction is the bending phenomenon caused by light passing through an edge or obstacle. It occurs because the light wave is subject to interference in different directions during propagation. In optical metasurfaces, the periodic arrangement of the metasurface's microstructures leads to the diffraction effect. When a plane wave is incident vertically on the optical metasurface, it is reflected and scattered by the microstructure. Due to the periodicity of the microstructure, the incident light is diffracted. The phase and amplitude of the different diffracted waves are affected by the geometric information of the microstructure. By precisely designing and manufacturing the microstructures on the metasurface, it is possible to reflect or transmit light in specific directions and modulate the wavefront phase of the light.

[0247] 32 and 33(a), the present application proposes an example of a near-eye display device 400, including a frame 401, an optical lens 407, a near-eye display module 100, and a polarizer 630. The optical lens 407 is connected to the frame 401, and the optical lens 407 has a human eye side 410 and an environment side 420. The near-eye display module 100 is set on the frame 401 and is located on the human eye side 410. The polarizer 630 is set on the light-emitting side 1432 of the near-eye display module 100. The polarizer 630 is used to The projection light beam output of the near-eye display module 100 is polarized light; the optical lens 407 includes a transmissive area 426 and a transflective area 423, and the transmissive area 426 surrounds the transflective area 423; wherein, the transflective area 423 is configured to allow the reception of polarized light from the polarizer 630 and reflect the polarized light toward the human eye side 410, and the transflective area 423 is also configured to allow ambient light to penetrate from the ambient side 420 and be transmitted to the human eye side 410; the transmissive area 426 is configured not to allow the reception of polarized light from the polarizer 630.

[0248] The frame 401 can serve as the main structure of the near-eye display device, wherein the near-eye display device can be a helmet-type structure or a glasses-like structure. The near-eye display device can also have other structural forms. Taking the helmet-type structure as an example, the frame 401 can be the main body of the helmet; when the near-eye display device is a glasses-like structure, the frame 401 can be the frame of the glasses. The optical lens 407 has an environmental side 420 and a human eye side 410, wherein the human eye side 410 is the side of the optical lens facing the human eye, and the environmental side 420 can be the outside of the part outside the human eye side 410; optionally, in this example, the environmental side 420 can be the side opposite to the human eye side 410, and the ambient light on the environmental side 420 can be transmitted to the human eye side 410 through the optical lens 407. The optical lens 407 in this example can be an ordinary optical lens 407, or it can be a lens with functions such as optical waveguides and holographic waveguides.

[0249] The near-eye display module 100 can be used to project preset image information to the human eye. The near-eye display module 100 may include an optical machine, which may include a micro display 142, such as Micro-LED (Micro Light-Emitting Diode), uLED (Micro Light-Emitting Diode), Micro-oled (Micro Organic Light-Emitting Diode), LCoS (Liquid Crystal On Silicon), LCD (Liquid Crystal Display), DMD (Digital Micromirror Device) / DLP (Digital Light Processing) or LBS (Laser Beam Scanning), or any combination of these technologies. It is understood that the optical machine may also include an optical component 143, etc. The optical component 143 is arranged in front of the micro display 142, and the light of the display is emitted after passing through the optical component 143. The near-eye display module 100 has a light-emitting side 1432 , and the light-emitting side 1432 in this example may be the light-emitting side 1432 of the optical component 143 .

[0250] The polarizer 630 is disposed on the light-emitting side 1432 of the near-eye display module 100 to output the projection light beam of the near-eye display module 100 as polarized light. The polarizer 630 in the example of the present application can be at least one of linear polarization, circular polarization (left-handed circular polarization, right-handed polarization), and elliptical polarization. The optical lens 407 has a transmissive area 426 and a transflective area 423, wherein the transmissive area 426 and the transflective area 423 are different areas on the optical lens 407, wherein the transflective area 423 cooperates with the near-eye display module 100 and the polarizer to reflect the polarized light output by the polarizer 630 toward the human eye side 410, and the ambient light input from the ambient side 420 can penetrate the transflective area 423 and be transmitted toward the human eye side, so that the transflective area 423 does not affect the normal ambient light transmission of the optical lens 407; the near-eye display module 100 in this example is set on the human eye side of the optical lens 407, and the image information output by the near-eye display module 100 is transmitted to the human eye side 410 through the transflective area 423. On the one hand, it is convenient to adjust the position of the near-eye display module 100 on the human eye side of the optical lens 407, thereby improving the convenience of installation of the near-eye display module 100; on the other hand, the near-eye display module 100 reduces the occlusion of the ambient side of the optical lens, which can help to reduce the volume of the near-eye display device.

[0251] Transmissive area 426 is used to transmit ambient light, allowing ambient light from the ambient side of optical lens 407 to reach the human eye. In this example, transmissive area 426 is positioned around transflective area 423. Optionally, transflective area 423 can be positioned at the geometric center of optical lens 407. This eliminates the need for significant tilting of the visual axis when the eye is aligned with the optical lens, thereby improving the comfort of near-eye display device 400. Optionally, the geometric center of transflective area 423 can be positioned separately from the geometric center of optical lens 407 to fully utilize the space within optical lens 407. In this example, transmissive area 426 can form an annular surrounding area around transflective area 423, or it can be positioned to partially surround transflective area 423. The transmission area 426 does not receive polarized light from the polarizer 630, so that the transmission area 426 is only used to transmit ambient light. When the near-eye display module 100 outputs image information, since the projection light beam of the near-eye display module 100 is projected onto the metasurface 424, the light beam is generally concentrated in a specific area. The transflective area 423 in this example can be an area corresponding to the position of the near-eye display module 100, so that the light projected by the near-eye display module 100 is completely projected onto the area where the metasurface 424 is located, and the light beam is reflected toward the human eye side 410 through the micro-nano unit 425 to improve the quality of the projected light beam.

[0252] The transflective area 423 in this example can receive polarized light from the polarizer 630 and reflect the polarized light toward the human eye side. At the same time, the transflective area 423 can allow ambient light to pass through. The transflective area 423 can be a film layer composed of a transflective film set on the optical lens 407. Optionally, the transflective area 423 can also be a metasurface 424 set on the optical lens 407.

[0253] The optical lens 407 in the examples of this application can be a flat surface, a curved surface, or a combination of a flat surface and a curved surface. The curved surface refers to at least one surface of the optical lens 407 on the eye side or the environment side being a curved surface. In some examples, the optical lens 407 includes a curved surface, and the transmissive area 426 and the transflective area 423 are located on the curved surface.

[0254] The transflective film can be used to reflect polarized light and transmit ambient light. The transflective film can be a composite film layer structure. The transflective film in the example of the present application can be set on the surface of the optical lens 407 facing the human eye side 410. The transflective film can also be set on the surface of the optical lens 407 facing the ambient side 420. In the example of the present application, the installation position of the transflective film on the optical lens 407 can be determined according to the specific structure of the optical lens 407. In this example, the transflective film can be bonded, embedded, or connected and fixed to the optical lens 407 in other ways; optionally, the transflective film can also be embedded inside the optical lens to improve the structural stability and safety of the transflective film.

[0255] In some examples, the transflective region 423 includes a metasurface 124, which is provided with micro-nano units 425. The micro-nano units 425 are configured to allow ambient light to penetrate from the ambient side 4202 and be transmitted toward the human eye side 410. The micro-nano units 425 are configured to receive polarized light and reflect the polarized light toward the human eye side 410. The metasurface 424 can be one of the surfaces on the optical lens 407. In the example of this application, the optical lens 407 can be used as the substrate, and the metasurface 424 can be a surface formed on the optical lens 407. Alternatively, the metasurface 424 can also be one of the surfaces of a lens or film layer provided on the optical lens 407. The micro-nano units 425 are located on the metasurface 424 and are micro-nano structures provided on the metasurface 424. The micro-nano units 425 form a two-dimensional planar subwavelength structure on the metasurface 424. Polarized light is transmitted to the micro-nano units 425, and the polarized light does not need to be coupled into the micro-nano units 425. The micro-nano units 425 are used to control parameters such as the front amplitude, phase, and polarization of the light wave. Ambient light can penetrate the micro-nano units 425 and be transmitted from the ambient side 420 to the human eye side 410. The projection light beam projected by the near-eye display module 100 is output as polarized light through the polarizer 630. The micro-nano units 425 cannot penetrate the polarized light. The micro-nano units 425 can be used to reflect the polarized light to reflect the polarized light toward the human eye side 410. In the example of this application, by using an optical lens 407 with a metasurface 424, the volume of the optical lens 407 can be effectively reduced, thereby facilitating the miniaturization design of the near-eye display device 400. Because ambient light can penetrate the micro-nano units 425, the micro-nano units 425 do not block the near-eye display device 400. The area of ​​the metasurface 424 in this example can be equal to the area of ​​the human eye side 410 or the environmental side 420 of the optical lens 407. When the near-eye display device 400 has multiple optical lenses 407, the metasurface 424 can be a surface on one of the optical lenses 407. The metasurface 424 can be equal to the area of ​​the corresponding optical lens 407, or the area of ​​the metasurface 424 can be smaller than the area of ​​the corresponding optical lens 407.

[0256] In some examples, the metasurface 424 is disposed on the eye-side 410 or the ambient-side 420 of the optical lens 407. In this example, the metasurface 424 may be a surface facing the eye-side 410 or the ambient-side 420 of the optical lens 407, and the micro-nano units 425 are subwavelength structures formed on the metasurface 424 facing the eye-side 410 for regulating parameters such as the amplitude, phase, and polarization of polarized light.

[0257] In some examples, the transflective region 423 includes a metasurface 424 , and the transflective region 423 also includes a transflective film. In this example, the transflective film can be disposed on the metasurface.

[0258] In some examples, the micro-nano unit 425 is a polarization-sensitive structure, and the micro-nano unit 425 is at least one of an elliptical cylinder, a hollow elliptical cylinder, an elliptical hole, a hollow elliptical hole, a rectangular cylinder, a rectangular hole, a hollow rectangular cylinder and a hollow rectangular hole, and the micro-nano unit 425 is used to apply a geometric phase to polarized light; the micro-nano unit 425 in this example is a polarization-sensitive structure, wherein the micro-nano unit 425 can be an anisotropic material, as shown in Figure 33 (a), the x direction can be the length direction of the micro-nano unit 425, and the y direction can be the thickness direction of the micro-nano unit 425. The micro-nano unit 425 is an anisotropic material, which means that the micro-nano unit 425 has different performance indicators in two directions perpendicular to each other, the x direction and the y direction. For example, the nano unit has different tensile strengths in the x direction and the y direction. The micro-nano units 425 can be made of at least one of nanowires, carbon nanotubes, graphene nanoribbons, black phosphorus, black arsenic phosphorus, black phosphorus carbon, germanium phosphorus, rhenium sulfide, rhenium selenide, germanium sulfide, and germanium selenide. The micro-nano units 425 are used to impose a geometric phase on polarized light. In this example, the polarized light can be circularly polarized light. The micro-nano units 425 can form a rectangular nanorod structure. The micro-nano units 425 described in this example can be formed on the metasurface 424 in the form of at least one of an elliptical cylinder, a hollow elliptical cylinder, an elliptical hole, a hollow elliptical hole, a rectangular cylinder, a rectangular hole, a hollow rectangular cylinder, and a hollow rectangular hole. This allows the metasurface 424 to form a predetermined surface that reflects polarized light toward the human eye side 410.

[0259] In some examples, the polarizer 630 may be a combination of one or more of linear polarization, circular polarization, and elliptical polarization, wherein the circular polarization may be left-handed circular polarization or right-handed circular polarization.

[0260] In some examples, the micro-nano unit 425 is a polarization-insensitive structure. The micro-nano unit 425 is in the shape of at least one of a cylinder, a hollow cylinder, a circular hole, a hollow circular hole, a square prism, a square hole, a hollow square prism, and a hollow square hole. The micro-nano unit 425 is configured to impose a propagation phase on polarized light. In this example, the polarized light can be linearly polarized, circularly polarized, or elliptically polarized. In this example, the desired amplitude, phase, and polarization can be achieved by adjusting parameters such as the geometric dimensions of the micro-nano unit 425.

[0261] In some examples, the micro-nano unit 425 is rotatable relative to the metasurface 424. In this example, the micro-nano unit 425 can rotate relative to the metasurface 424 under the action of an electric field. Taking the micro-nano unit 425 as a polarization-sensitive structure as an example, the micro-nano unit 425 applies a geometric phase to the polarized light. The micro-nano unit 425 can be rotatable along the x-direction or y-direction as shown in Figure 33(a). The rotation angle of the micro-nano unit 425 can be half of the phase delay of the polarized light. When the micro-nano unit 425 is a polarization-insensitive structure, the amplitude, phase, and polarization of the polarized light can be adjusted by adjusting the size of the micro-nano unit 425 as needed.

[0262] In some examples, the micro-nano units 425 include a rotationally symmetric array structure; the micro-nano units 425 are disposed on the eye side 410 or the environment side 420 of the optical lens 407. The rotationally symmetric array structure refers to a pattern formed by the micro-nano units 425 being rotated about a fixed point by α (radians) to overlap with the initial pattern.

[0263] Please refer to Figure 34. In some examples, the frame 401 also includes a frame 402 and temples 430, the optical lens 407 is connected to the frame 402, and the optical lens 407 is connected to the frame 402; the temples 430 are connected to the frame 402, and the near-eye display module 100 and the polarizer 630 are connected to the temples 430 or the frame 402.

[0264] In this example, the frame 402 can form the main structure of the near-eye display device 400, and the temples 430 are connected to the frame 402 so as to limit the frame 402 to a preset position when worn. The optical lens 407 is connected to the frame 402, which means that the optical lens 407 can be installed at a preset position of the frame 402. Optionally, in this example, the near-eye display module 100 and the polarizer 630 can be connected and fixed to the temples 430, and the near-eye display module 100 can also be detachably installed on the temples 430. The light-emitting side of the polarizer 630 faces the optical lens 407, so that the polarized light output by the polarizer 630 can be output to the reflective area of ​​the optical lens 407. The polarizer 630 in this example can be connected to the near-eye display module 100, and the polarizer 630 can also be connected to the temples 430 or the frame 402. The temples 430 in this example can be fixedly connected to the frame 402 and maintain a fixed position relative to the frame 402; optionally, the temples 430 can also be movably connected to the frame 402 so that the temples 430 can move relative to the frame 402, and can be used to adjust the position of the temples 430 relative to the frame 402 when necessary. Optionally, the near-eye display module 100 and the polarizer 630 can be arranged at the end of the frame 402 away from the optical lens 407, and the end of the frame 402 away from the optical lens 407 means that the optical lens 407 is connected to the frame 402, and the frame 402 has a mounting portion connected to the optical lens 407 and an edge portion away from the mounting portion, wherein the mounting portion can be annular, the optical lens 407 can be installed in the annular area of ​​the mounting portion, the edge portion can be an annular area away from the mounting portion, and the edge portion can also be a protruding area away from the mounting portion and protruding from the human eye side of the optical lens 407, the near-eye display module 100 and the polarizer 630 can be arranged at the edge of the frame 402, and the polarizer 630 converts the light beam output by the near-eye display module 100 into polarized light, and projects it onto the transflective area of ​​the optical lens.

[0265] In some examples, the temple 430 includes a first section 431 and a second section 432 connected to the first section 431. The first section 431 is rotatably connected to the frame 402, and the second section 432 is located on the side of the first section 431 away from the frame 402. The near-eye display module 100 and the polarizer 630 are connected to the first section 431. The first section 431 and the second section 432 of the temple 430 can be a single piece or a separate piece connected to each other. The first section 431 is used to connect to the frame 402, and the second section 432 is located on the side of the first section 431 away from the frame 402. The second section 432 can be used to support the ear to enable the frame 402 to maintain a preset position.

[0266] The near-eye display module 100 in this example is connected to the first section 431 so that the near-eye display module 100 can be relatively closer to the frame 402. After wearing the near-eye display device 400, the near-eye display module 100 can be located at the wearer's temple. When the near-eye display module 100 projects a light beam, the wearer will not block the light beam.

[0267] In some examples, the first section 431 has a front end 431a and a rear end 431b that are relatively arranged, the front end 431a is connected to the frame 402, and the rear end 431b is connected to the second section 432, the front end 431a and the rear end 431b are configured to not allow contact with the user's head, and the near-eye display module 100 polarizer 630 is located between the front end 431a and the rear end 431b of the first section 431. The front end 431a of the first section 431 is the end of the first section 431 close to the frame 402, and the front end 431a of the first section 431 is connected to the frame 402; the rear end 431b of the first section 431 is the end of the first section 431 away from the frame 402, and the rear end 431b of the first section 431 is connected to the second section 432; the near-eye display module 100 in this example is connected between the front end 431a and the rear end 431b of the first section 431, so that the near-eye display module 100 will neither fit the position of the frame 402 nor be installed in a position close to the second section 432, so as to control the angle of the light beam projected by the near-eye display module 100, so that the light beam projected by the near-eye display module 100 can be better concentrated at the position of the metasurface 424 to reduce the problem of light leakage. The front end 431a and the rear end 431b are configured to prevent contact with the user's head. This prevents the polarizer 630 of the near-eye display module 100 from being in close contact with the user's head after installation, thereby reducing obstruction of polarized light. It should be understood that the position of the polarizer 630 of the near-eye display module 100 in FIG34 is merely an example for ease of understanding and does not represent an actual height.

[0268] Please refer to Figures 34 and 35 in combination. The human eye side 410 of the optical lens 407 has left and right fields of view, and the left and right fields of view can be the areas corresponding to the left and right eyes of the user. In some examples, the temples 430 have an unfolded position and a folded position. The temples 430 are rotatably connected to the frame 402 between the unfolded position and the folded position. The optical lens 407 includes a first outer edge L3, a first center line L1, a second center line L2, and a second outer edge L4 arranged in parallel along the first direction 3a. The first outer edge L3 and the second outer edge L4 are tangent to the edge of the optical lens 407 along the first direction 3a. The first center line L1 is the center axis of the optical lens 407 corresponding to one of the left and right fields of view on the human eye side 410; the second center line L2 is the center axis of the optical lens 407 corresponds to the central axis of the other one of the left and right fields of view on the side of the human eye 410; the first center line L1 and the second center line L2 are located between the first outer side L3 and the second outer side L4; when the temple 430 is in the unfolded position, the optical axis of the near-eye display module 100 and the polarizer 630 is set at an angle to the optical lens 407; when the temple 430 is in the folded position, the near-eye display module 100 and the polarizer 630 are located between the second center line L2 and the second outer side L4, and / or the near-eye display module 100 and the polarizer 630 are located between the first center line L2 and the first outer side L3.

[0269] The first direction 3a may be the direction of the left and right fields of view of the optical lens on the human eye side. Along the first direction 3a, the optical lens 407 has an area corresponding to the left field of view of the human eye side 410 and an area corresponding to the right field of view of the human eye side 410. When the near-eye display device 400 has two optical lenses 407, the first direction 3a may be the direction from one optical lens to the other optical lens. When the near-eye display device 400 has two optical lenses 407, the two optical lenses 407 correspond to the left field of view and the right field of view of the human eye side, respectively.

[0270] The temples 430 are rotatably connected to the frame 402 between an extended position and a folded position, allowing the temples 430 to be either extended or folded relative to the frame 402. When the temples 430 are in the extended position, the temples 430 are arranged at an angle to the frame 402, and the second sections 432 of the temples 430 extend away from the frame 402. When the temples 430 are in the folded position, the temples 430 can be stacked outside the frame 402. In this example, the temples 430 are movable relative to the frame 402, allowing them to be folded outside the frame 402 when needed. The temples 430 have an extended position and a folded position, and are movable between the extended and folded positions. When the temples 430 are in the unfolded position, the near-eye display device 400 can be used, and the second section 432 of the temple 430 is positioned away from the optical lens 407, so that the second section 432 of the temple 430 can be used to support the wearer's ear. When the temples 430 are in the folded position, the first section 431 of the temple 430 is stacked outside the optical lens 407 to reduce the storage space required for the near-eye display device 400. In this example, the first section 431 of the temple 430 is stacked outside the optical lens 407, and the first section 431 of the temple 430 and the optical lens 407 can be stacked. When the temples 430 are in the folded position, the near-eye display module 100 is suspended outside the optical lens 407, so that the near-eye display module 100 does not contact the optical lens 407, thereby reducing wear on the optical lens 407.

[0271] Please refer to Figures 34 and 35. In some examples, the optical lens 407 has a first outer side L3 or a second outer side L4 that are oppositely arranged. The first section 431 is arranged near the first outer side. The central axis of the optical lens 407 corresponding to one of the left and right fields of view of the human eye side 410 is defined as the first center line L1, and the central axis of the other of the left and right fields of view of the optical lens 407 corresponding to the human eye side 410 is defined as the second center line L2. The first center line L1 and the second center line L2 are straight lines between the first outer side L3 and the second outer side L4. The first center line L1 and the second center line L2 are straight lines between the first center line L3 and the second center line L4. 2 parallel; when the temple 430 is in the folded position, the near-eye display module 100 and the polarizer 630 are located between the first center line L1 and the first outer side L3. On the one hand, it is convenient to suspend the near-eye display module 100 and the polarizer 630 on the outside of the optical lens 407. On the other hand, when the temple 430 is unfolded to the unfolded position, the near-eye display module 100 and the polarizer 630 can be located at the first section of the temple 430, so that when the user's head is wearing the near-eye display device 400, it is not easy to block the near-eye display module 100 and the polarizer 630. In this example, the near-eye display module 100 and the polarizer 630 can be set on the left temple 430, and the first center line L1 can correspond to the left visual field of the human eye. In some examples, the near-eye display module 100 and the polarizer 630 can also be set on the right temple 430, between the second center line L2 and the second outer side L4, and the second center line L2 can correspond to the right visual field of the human eye. In some examples, the near-eye display device 400 has two left and right temples 430 and two left and right optical lenses 407. The two temples 430 have a folded position and an open position, respectively. The two temples 430 are respectively provided with the near-eye display module 100 and the polarizer 630 described in the above examples.

[0272] In some examples, when the temples 430 are in the extended position, the optical axes of the near-eye display module 100 and the polarizer 630 are arranged at an angle to the optical lens 407, so that the near-eye display module 100 can project a light beam toward the optical lens 407. The polarizer 630 can be used to convert the light beam output by the near-eye display module 100 into polarized light and output it toward the optical lens 407. The first outer edge is a side of the optical lens 407 that is close to the temple 430. In this example, the first outer edge can be an edge of the frame 402 along the first direction 3a. The frame 402 can have a nose pad, and the first outer edge is the side of the optical lens 407 that is away from the nose pad.

[0273] Referring to FIG. 33( b ), in some examples, the near-eye display module 100 includes a microdisplay 142 and an optical assembly 143. The microdisplay 142 is connected to the temple 430. The optical assembly 143 has a light-entering side 1431, which forms a light-exiting side 1432 of the near-eye display module 100. The optical assembly 143 also has a light-entering side 1431, and the microdisplay 142 is disposed on the light-entering side 1431 of the optical assembly 143. The polarizer 630 is located on the light-exiting side 1432 of the optical assembly 143. The microdisplay 142 can be at least one of the aforementioned Micro-LED, uLED, Micro-OLED, LCoS, LCD, DMD / DLP, or LBS, or can be other functional modules capable of outputting light beams in the near-eye display module 100. Microdisplay 142 is located on the side of optical assembly 143 facing away from the polarizer. Microdisplay 142 is used to project a light beam toward optical assembly 143. The light beam is processed by optical assembly 143 and the polarizer before being projected into the human eye. Optical assembly 143 has a light-entry side 1431. The light beam projected by microdisplay 142 is output from light-entry side 1431 to light-exit side 1432 of optical assembly 143, where it is then directed to the polarizer. In this example, optical assembly 143 can be a single lens or a combination of multiple lenses.

[0274] In some examples, the near-eye display device 400 further includes a power module 440, which is located on the temple 430 and electrically connected to the microdisplay 142. The power module 440 is connected to the temple 430 to fully utilize the space on the temple 430. The power module 440 can be used to power the microdisplay 142 of the near-eye display module 100. The power module 440 and the near-eye display module 100 in this example can be powered by wired power or wireless power. The power module 440 in this example can include a battery 441. The power module 440 can also include functional components such as a circuit board 442. The circuit board 442 can be connected between the battery 441 and the microdisplay 142.

[0275] Near-eye display (NED) encompasses VR (Virtual Reality), AR (Augmented Reality), MR (Mixed Reality), and XR (Extended Reality). NED creates virtual images within the field of view of one or both eyes. NED uses a display device placed within the human eye's non-clear viewing distance to render light field information to the human eye, thereby reconstructing the virtual scene directly in front of the user. To ensure that light projected by the NED device enters the human eye, the NED module is typically mounted in front of the user's eye. This misalignment between the NED's projection area and the normal visual axis of the human eye can lead to user fatigue when using NED devices.

[0276] The present application provides a near-eye display device, which aims to improve the problem that a head-mounted display device cannot be aligned with the visual axis of the human eye. A technical solution adopted by the present application is: providing a near-eye display device, comprising: a main body, the main body having a human eye side and an environment side; an optical lens, connected to the main body, the optical lens having a viewpoint center; a near-eye display module, connected to the main body, the near-eye display module is located at the outer periphery of the optical lens and is spaced apart from the viewpoint center; and a prism, provided on the main body, the prism is located on the light-emitting side of the near-eye display module, the prism is spaced apart from the viewpoint center, and the prism is configured to offset a first light beam emitted from the near-eye display module in a first direction to form a second light beam at least along a second direction and then project it to the human eye side, the first direction and the second direction being different, and the light beam projected to the human eye side does not pass through the viewpoint center.

[0277] The light beam output by the near-eye display module is reflected by a prism arranged on the main body so that the light beam can be reflected to the side of the human eye. Since the direction of the light beam can be changed by the prism, the installation position of the near-eye display module can be located more on the periphery of the main body. On the one hand, it can reduce the obstruction of the field of view of the near-eye display device and improve the user experience of the near-eye display device; on the other hand, it can reduce the user's fatigue.

[0278] The processed optical lens described in the examples of this application may also be a lens having functions such as an optical waveguide or a holographic waveguide. It is understood that the near-eye display device in the examples of this application may also include other functional components. For example, the near-eye display device may be a head-mounted display device, and the near-eye display device may also include temples for connecting the optical lens or other supporting structures capable of supporting the optical lens on the head so that the optical lens can be maintained in a preset position.

[0279] 36 and 37 , the present application proposes an example of a near-eye display device, which includes a main body 400, an optical lens 412, a near-eye display module 100, and a prism 800; the main body 400 has a human eye side 410 and an environment side 420; the optical lens 412 is connected to the main body 400, and the optical lens 412 has a viewpoint center 451; the near-eye display module 100 is connected to the main body 400, and the near-eye display module 100 is located at the outer periphery of the optical lens 412, and It is arranged at a distance from the viewpoint center 451; the prism 800 is arranged on the main body 400, and the prism 800 is located on the light-emitting side of the near-eye display module 100. The prism 800 is arranged at a distance from the viewpoint center 451, and the prism 800 is configured to offset the first light beam emitted from the near-eye display module 100 in the first direction a to form a second light beam along at least the second direction b and then project it to the human eye side 410. The first direction a and the second direction b are different, and the light beam projected to the human eye side 410 does not pass through the viewpoint center 451.

[0280] The main body 400 of the near-eye display device can be worn on the head and may also include a display screen or other display device. The main body 400 has an eye side 410 and an ambient side 420. The eye side 410 is the side of the main body 400 facing the user's eyes, and the ambient side 420 is the area outside the eye side 410. In the example of this application, the eye side 410 and the ambient side 420 are optionally opposite sides of the main body 400. The main body 400 has the above-mentioned eye side 410 and ambient side. Ambient light on the ambient side 420 can pass through the optical lens 412 and be projected into the user's eyes.

[0281] The optical lens 412 can be a plain lens, a lens with a certain refractive power, or a processed lens with functions such as an optical waveguide or a holographic waveguide. In the example of this application, one or more optical lenses 412 can be provided on the main body 400. The viewpoint center 451 can be the center of the optical lens 412 measured by the pupil distance between the wearer's eyes; or the center of the optical lens 412 can be determined by combining the overall geometric horizontal and vertical lines of the main body 400, etc. The viewpoint center 451 in the drawings of this application is only an example mark and does not limit the viewpoint center 451 of the optical lens to only this position. The optical lens has a thickness direction, with one side of the thickness direction of the optical lens facing the human eye and the other side facing away from the human eye. Ambient light is transmitted from the ambient side of the main body 400 through the optical lens and toward the human eye side. For ease of description, in this example, the ambient side of the main body 400 can be consistent with the side surface of the optical lens in the thickness direction facing away from the human eye, and the human eye side of the main body 400 can be consistent with the side surface of the optical lens in the thickness direction facing the human eye.

[0282] 38(a) and 38(b), the near-eye display module 100 can be used to project a preset image signal toward the human eye. The near-eye display module 100 can include an optical engine, which can include a microdisplay 142, such as a Micro-LED (Micro Light-Emitting Diode), a uLED (Micro Light-Emitting Diode), a Micro-OLED (Micro Organic Light-Emitting Diode), an LCoS (Liquid Crystal On Silicon), an LCD (Liquid Crystal Display), a DMD (Digital Micromirror Device) / DLP (Digital Light Processing), or an LBS (Laser Beam Scanning), or any combination of these technologies. It is understood that the optical engine can also include an optical component 143, etc. The optical component 143 is disposed in front of the microdisplay 142, and the light of the microdisplay 142 is emitted after passing through the optical component 143. The near-eye display module 100 is located at the outer periphery of the optical lens 412, and is spaced apart from the viewpoint center 451, which means that the viewpoint center 451 is not blocked. The near-eye display module 100 in this example can be set outside the outer periphery of the optical lens 412 so that the near-eye display module 100 does not block the optical lens at all.

[0283] Please refer to Figures 38(a), 38(b), and 39(a) in conjunction. The prism 800 is located on the light-emitting side of the near-eye display module 100. The prism 800 is used to reflect the light projected by the near-eye display module 100 to change the propagation direction of the light. Under the action of the prism 800, the light projected by the near-eye display module 100 changes its transmission direction, and the light beam is transmitted toward the human eye side 410. The prism 800 can be connected to the main body 400, and the light beam is reflected or refracted by the surface on the prism 800 to change the transmission direction of the light beam. During installation, the near-eye display module 100 and the prism 800 can be installed integrally on the main body 400. The prism 800 is spaced apart from the viewpoint center 451, which means that the prism 800 does not block the position of the viewpoint center 451, so that ambient light can be transmitted to the human eye side through the viewpoint center 451. The prism 800 is configured to deflect the first light beam emitted from the near-eye display module 100 in a first direction a to form a second light beam traveling along at least a second direction b, which is then projected onto the eye side 410. The first direction a and the second direction b are different, and the light beam projected onto the eye side 410 does not pass through the viewpoint center 451. The first direction a is the direction of the first light beam output by the eye display module 200. The prism deflects the first light beam output by the near-eye display module 100 to form a second light beam traveling along a second direction b, which is non-parallel to the first direction a. In this example, the second light beam can be projected directly onto the eye side 410.

[0284] Please refer to Figures 36, 38(a), 438(b) and 40(b) in combination. Taking the near-eye display device as smart glasses as an example, the main body 400 of the smart glasses may include a frame 402 and temples 430, and at least one optical lens 412 may be mounted on the frame 402. The near-eye display module 100 in this example may be mounted on the edge or outside of the optical lens 412. The position of the prism 800 in this example corresponds to the position of the light-emitting surface of the near-eye display module 100. The prism 800 may be located on the human eye side 410 or the environment side 420, so that the light beam output from the light-emitting surface can be reflected and refracted by the prism 800, and the light beam is transmitted to the pupil position of the human eye, so that the transmission direction of the light beam is adapted to the visual axis of the human eye. In this example, the near-eye display module 100 can be set at a position close to the outer periphery of the optical lens 412, or the near-eye display module 100 can be installed on the outside of the outer periphery of the optical lens 412, thereby reducing the obstruction of the optical lens 412 by the near-eye display module 100 and reducing the foreign body sensation on the near-eye display device; the light beam output by the near-eye display module in this example can be redirected through the prism 800, thereby making the installation position of the near-eye display module 100 more diverse; since the near-eye display module 100 can be installed at the edge or outside of the optical lens 412, the space outside the optical lens 412 can be utilized, so that the near-eye display module 100 has a larger installation space, and at the same time the difficulty of installing the near-eye display module 100 can be reduced.

[0285] Please refer to Figure 38(a). The light-emitting surface of the near-eye display module 100 in the example of the present application can be facing the human eye side or the environment side, and the near-eye display module 100 can be set above, below or at other positions of the optical lens 412; optionally, the light-emitting surface of the near-eye display module can be located on the environment side, and the light-emitting surface of the near-eye display module can be set at an angle to the optical lens, and the prism 800 is arranged on the outside of the light-emitting surface of the near-eye display module 100, and the prism 800 can be located on the environment side 420, wherein the near-eye display module 100 can be completely set outside the outer periphery of the optical lens 412, so that the near-eye display module 100 does not occupy the position of the environment side 420, and will not block the ambient light of the optical lens 412.

[0286] 38( b ), the light-emitting surface of the near-eye display module 100 in the example of the present application can be disposed so as to face away from the ambient side 420, and the prism 800 can be disposed outside the light-emitting surface of the near-eye display module 100, and the prism 800 can be located on the ambient side 420. The near-eye display module 100 can be completely disposed outside the outer periphery of the optical lens 412, so that the near-eye display module 100 does not occupy the position on the ambient side 420 and does not block the ambient light of the optical lens 412.

[0287] Referring to FIG. 40( b ), the light-emitting surface of the near-eye display module 100 in the example of the present application can be disposed toward the human eye side 410 , and the prism 800 is disposed outside the light-emitting surface of the near-eye display module 100 , and the prism 800 can be located on the human eye side 410 . The near-eye display module 100 can be completely disposed outside the outer periphery of the optical lens 412 , so that the near-eye display module 100 does not occupy the position on the human eye side 410 and does not block the optical lens 412 .

[0288] In this example, the near-eye display module 100 has a light-emitting surface. After being output from the light-emitting surface of the near-eye display module 100, the light beam is transmitted toward the prism 800. Under the action of the prism 800, the light beam is transmitted toward the human eye side 410. The light beam output by the near-eye display module 100 can at least be reflected by the prism 800, so that the direction of the light beam when it is output to the human eye can be better aligned with the human eye pupil. The user does not need to frequently move their eyes to view the image projected by the near-eye display device, thereby reducing the user's fatigue when using the near-eye display device.

[0289] In some examples, the projection surface of the prism 800 on the optical lens 412 is spaced apart from the viewpoint center 451 in the direction from the ambient side 420 to the human eye side 410. In this example, the prism 800 is spaced apart from the viewpoint center 451 so that the prism 800 does not block the viewpoint center 451. When natural light is transmitted from the ambient side to the human eye side, the prism 800 does not block the natural light.

[0290] Please refer to Figures 38 to 40. In some examples, the prism 800 includes an incident surface 810, an exit surface 830, and at least one reflective surface 820 located between the incident surface 810 and the exit surface 830; the incident surface 810 and the exit surface 830 are arranged opposite to each other, and are used to allow the light beam projected by the near-eye display module 100 to enter the prism 800; the reflective surface 820 is used to reflect the light beam input by the incident surface 810 toward the exit surface 830; the exit surface 830 is arranged toward the human eye side 410, and is used for the light beam reflected by the reflective surface 820 to be output to the human eye side 410; the incident surface 810 is connected to the light output surface of the near-eye display module.

[0291] The incident surface 810 faces the light-emitting surface of the near-eye display module 100. In this example, the incident surface 810 can be attached to the light-emitting surface of the near-eye display module 100. The first light beam projected by the near-eye display module 100 along the first direction a enters the prism 800 through the incident surface 810. When the first light beam emitted by the near-eye display module 100 is perpendicular to the incident surface 810, the angle of the light beam does not change, and the light beam does not refract.

[0292] The prism 800 has at least one reflecting surface 820. The first light beam input from the incident surface 810 to the prism 800 is deflected in direction by the reflecting surface 820 to form a second light beam transmitted along the second direction b. The second light beam is transmitted toward the exit surface 830. The light beam is emitted to the outside of the prism 800 at the exit surface 830. When the light beam reflected from the reflecting surface 820 is perpendicular to the exit surface 830, the angle of the light beam when it is output from the exit surface 830 may not change, and the light beam is not refracted. In this example, the incident surface and the exit surface are arranged relative to each other, which means that the incident surface and the exit surface are arranged parallel to each other or at a certain angle to each other. The reflecting surface in this example can be arranged adjacent to the exit surface or spaced apart from each other. The second light beam is output from the output surface 830 to the side of the human eye. Due to the action of the prism 800, the propagation direction of the light beam output by the light output surface changes. Therefore, when the light output surface of the near-eye display module 100 is not directly facing the human eye, the light beam output by the near-eye display module 100 can also be transmitted to the human eye under the action of the prism 800. The user does not need to rotate the eyeball significantly to obtain the signal projected by the near-eye display module 100.

[0293] Please refer to Figure 39(a). In some examples, the surface curvature of the exit surface 830 of the prism 800 is consistent with the surface curvature of the adjacent optical lens. When the surface of the optical lens 412 facing the exit surface 830 is concave, the exit surface 830 can be a convex curved surface. When the surface of the optical lens 412 facing the exit surface 830 is convex, the exit surface 830 can be a concave curved surface. The exit surface 830 of the prism 800 in this example is used to cooperate with the optical lens 412. The exit surface 830 can be supported on the surface of the optical lens 412. On the one hand, the stability of the prism 800 can be improved. On the other hand, when the light beam is output from the exit surface 830, the light beam can be adapted to the optical design of the optical lens 412.

[0294] Please refer to Figure 38(b). In some examples, the number of reflective surfaces 820 can be multiple. Optionally, the prism 800 is arranged on the environmental side 420 of the optical lens 412, the first direction a and the second direction b are arranged at an angle, and the light-emitting surface of the near-eye display module 100 is arranged away from the human eye side 410; the reflective surface 820 includes a primary reflective surface 821 and a secondary reflective surface 822. The primary reflective surface 821 is arranged adjacent to the incident surface 810, and the primary reflective surface 821 is used to offset the light beam incident from the incident surface 810 to form a second light beam; the secondary reflective surface 822 is arranged adjacent to the exit surface 830, and the secondary reflective surface 822 is used to offset the second light beam to form a third light beam in at least a third direction c and then transmit it to the exit surface 830, and the third direction c is arranged at an angle to the second direction b.

[0295] The prism 800 is arranged on the environment side 420 to reduce the intrusive feeling of the optical lens 412 on the human eye side 410. The light-emitting surface of the near-eye display module 100 is arranged away from the human eye side 410, which means that the light-emitting surface of the near-eye display module 100 is not located on the human eye side 410. The near-eye display module 100 in this example can be arranged outside the outer periphery of the optical lens 412 along the second direction b1b or the third direction c1c. Optionally, the light-emitting surface of the near-eye display module 100 can be facing away from the human eye side 410, and the light-emitting surface can be arranged toward the environment side 420; optionally, the light-emitting surface can also be arranged at an angle to the optical lens. Since the prism 800 can cooperate with the near-eye display module 100, the propagation direction of the light beam output by the near-eye display module 100 is changed, so that the light beam output by the near-eye display module 100 can be transmitted to the human eye through the prism 800, while reducing the obstruction of the optical lens 412 by the near-eye display module 100.

[0296] In this example, the primary reflection surface 821 and the secondary reflection surface 822 are both surfaces of the prism 800. The first light beam incident from the incident surface is deflected by the primary reflection surface 821 to form a second light beam. The second light beam is transmitted along the second direction b toward the secondary reflection surface 822. The second light beam is deflected by the second reflection surface to form a third light beam transmitted along the third direction c. The third light beam is transmitted from the exit surface 830 toward the human eye. In this example, by providing multiple reflection surfaces, the light beam output by the near-eye display module 100 can be deflected multiple times, thereby changing the propagation direction of the light beam. The primary reflection surface 821 and the secondary reflection surface 822 can be arranged adjacent to each other, or the primary reflection surface can be spaced apart from the secondary reflection surface.

[0297] In some examples, the prism 800 further includes an intermediate connecting surface 823, which is disposed between the primary reflecting surface 821 and the secondary reflecting surface 822. The intermediate connecting surface 823 is disposed at an angle to the first direction a and the third direction c. In this example, the intermediate connecting surface 823 serves as an intermediate surface between the primary reflecting surface and the secondary reflecting surface 822. The number of intermediate connecting surfaces 823 can be one or more. By providing the intermediate connecting surface 823, the distance between the primary reflecting surface and the secondary reflecting surface can be increased. On the one hand, this can facilitate the processing and adaptation of the primary reflecting surface 821 and the secondary reflecting surface 822. On the other hand, by increasing the distance between the primary reflecting surface 821 and the secondary reflecting surface 822 through the intermediate connecting surface 823, the third light beam output by the secondary reflecting surface can be more easily aligned with the pupil of the human eye. This reduces the amount of eye movement required when the human eye views the image information output by the near-eye display module 100, thereby reducing eye fatigue. The prism in this example is disposed on the environment side, and the third direction c may be parallel to the first direction a. Furthermore, the third direction c may also be opposite to the first direction a.

[0298] In some examples, the prism 800 is arranged on the human eye side 410, the first direction a and the second direction b are arranged at an angle, and the light-emitting surface of the near-eye display module 100 is arranged away from the ambient side 420; the reflecting surface 820 includes a primary reflecting surface 821 and a secondary reflecting surface 822, the primary reflecting surface 821 is arranged adjacent to the incident surface 810, and the primary reflecting surface 821 is used to offset the light beam incident from the incident surface 810 to form a second light beam; the secondary reflecting surface 822 is arranged adjacent to the exit surface 830, and the secondary reflecting surface 822 is used to offset the second light beam to form a third light beam in at least a third direction c and then transmit it to the exit surface 830, and the third direction c is arranged at an angle to the second direction b.

[0299] In this example, the prism 800 is located on the side of the human eye, and the first light beam output by the near-eye display module 100 can be directed toward the side of the human eye. The number of reflective surfaces 820 can be multiple. In this example, the primary reflective surface 821 and the secondary reflective surface 822 are both two surfaces of the prism 800. The first light beam incident from the incident surface is deflected by the primary reflective surface 821 to form a second light beam. The second light beam is transmitted along the second direction b toward the secondary reflective surface 822. The second light beam is deflected by the second reflective surface to form a third light beam transmitted along the third direction c. The third light beam is transmitted from the exit surface 830 toward the side of the human eye. In this example, by providing multiple reflective surfaces, the light beam output by the near-eye display module 100 can be deflected in multiple directions, thereby changing the propagation direction of the light beam. The primary reflective surface 821 and the secondary reflective surface 822 can be arranged adjacent to each other, or the primary reflective surface can be arranged spaced apart from the secondary reflective surface. In this example, the third direction c can be parallel to the first direction a, or the third direction c can be the same as the first direction a. The first and third light beams can both be transmitted toward the side of the human eye.

[0300] In some examples, the prism 800 further includes an intermediate connecting surface 823, which is disposed between the primary reflecting surface 821 and the secondary reflecting surface 822, and the intermediate connecting surface 823 is disposed at an angle to the first direction a and the third direction c. The intermediate connecting surface 823 in this example can be a surface of the prism 800 facing away from the environment. Optionally, the intermediate connecting surface can be parallel to the incident surface. The intermediate connecting surface 823 in this example serves as an intermediate surface between the primary reflecting surface and the secondary reflecting surface 822, wherein the number of intermediate connecting surfaces 823 can be one or more. By setting the intermediate connecting surface 823, the distance between the primary reflecting surface and the secondary reflecting surface can be increased. On the one hand, it can facilitate the processing and adaptation of the primary reflecting surface 821 and the secondary reflecting surface 822. On the other hand, by increasing the distance between the primary reflecting surface 821 and the secondary reflecting surface 822 through the intermediate connecting surface 823, the third light beam output by the secondary reflecting surface can be more easily aligned with the pupil of the human eye, so that when the human eye views the image information output by the near-eye display module 100, the rotation amplitude of the eyeball can be reduced, thereby reducing the fatigue of the human eye.

[0301] In some examples, the main body 400 also includes a frame 402, the frame 402 is connected to the outer periphery of the optical lens 412, the near-eye display module 100 is connected to the frame 402, and the prism 800 is connected to the near-eye display module 100 or the frame 402.

[0302] The frame 402 can serve as the framework structure of the main body 400. In the example of the present application, the frame 402 can completely cover the outer periphery of the optical lens 412, or the frame 402 can partially cover the outer periphery of the optical lens 412. In the example of the present application, one or more optical lenses 412 can be set on the frame 402. When multiple optical lenses 412 are set, the near-eye display module 100 and the prism 800 can be respectively set at the position corresponding to each optical lens 412 on the frame 402.

[0303] The near-eye display module 100 is connected to the frame 402 so that the near-eye display module 100 can be connected to the main body 400 and can maintain a preset position on the main body 400. The prism 800 can be connected to the frame 402 or the near-eye display module 100 so that the prism 800 can be located at a preset position outside the optical lens 412.

[0304] In some examples, the prism 800 is connected to the near-eye display module 100; the near-eye display module 100 is movably connected to the main body 400 along a fourth direction d to adjust the position of the prism 800 relative to the optical lens 412, and the fourth direction d is set at an angle to the first direction a.

[0305] The fourth direction d in this example may be the width direction of the main body 400 . When the near-eye display device has two temples, the fourth direction d may be the direction from one temple to the other temple.

[0306] The near-eye display module 100 can be detachably connected to the main body 400 to adjust the position of the near-eye display module 100 on the main body 400. The near-eye display module 100 can also be slidably or rotatably connected to the main body 400. In this example, for the convenience of description, the example of the near-eye display module 100 being connected to the frame 402 is used for explanation. The prism 800 is connected to the near-eye display module 100 so that the prism 800 can move synchronously with the near-eye display module 100. The near-eye display module 100 in this example can be mutually snapped, plugged or connected in other ways with the frame 402 so that the near-eye display module 100 can move relative to the frame 402. By adopting a movable connection method, the relative position of the near-eye display module 100 can be adjusted when necessary, so that the near-eye display module 100 and the prism 800 can better project the light beam to the human eye.

[0307] In some examples, a first connecting member 422 is provided on the main body 400, and a second connecting member 650 is provided on the near-eye display module 100, wherein one of the first connecting member 422 and the second connecting member 650 is made of a magnetic material and the other is made of a magnetically attractive material, and the first connecting member 422 is magnetically connected to the second connecting member 650.

[0308] One of the first and second connectors is a magnetic material, meaning that one of the first and second connectors contains a magnetic material. For example, the first connector can be a magnetic structure as a whole, or it can be a structure containing a magnetic material and exhibiting magnetic attraction properties. A magnetically attractable material refers to a structure capable of being attracted by a magnetic material. A magnetically attractable material can be a material containing a magnetic material, or it can be a material capable of being magnetically attracted, including iron-based alloys, Mn-Zn ferrites, Ni-Zn ferrites, and composite materials. In this example, one of the first and second connectors is a magnetic material capable of generating a magnetic attraction force, while the other is a magnetically attractable material capable of being magnetically attracted. In this example, by combining a magnetic material with a magnetically attractable material, one of the first and second connectors can be connected to the main body 400. Because of the magnetic attraction method, no additional connector is required between the first and second connectors, simplifying the connection structure between the near-eye display module 100 and the main body 400.

[0309] Please refer to Figure 41. In some examples, a mounting groove 411 is opened on the main body 400, the first connecting member 422 is embedded in the mounting groove 411, the near-eye display module 100 is movably clamped in the mounting groove 411 in the fourth direction d, and the mounting groove 411 is set on the outer periphery of the main body 400.

[0310] The mounting groove 411 may be a recessed groove recessed toward the inside of the main body 400. The mounting groove 411 is used to form a space for accommodating the first connector 422, thereby reducing the problem of the first connector 422 protruding from the outside of the main body 400 and causing the near-eye display device to increase in size. In this example, the mounting groove 411 may be provided on the frame 402, and the mounting groove 411 may be located on the outer peripheral surface of the frame 402, so as to move the near-eye display module 100 and the prism 800 from the outer peripheral position of the frame 402 along the fourth direction d.

[0311] The first connecting member 422 is embedded in the installation groove 411, so that the installation groove 411 can be used to position the first connecting member 422. In this example, the first connecting member 422 can be completely located in the installation groove 411, or the first connecting member 422 can be partially located in the installation groove 411.

[0312] Referring to Figures 40(a) and 39(b), after the first connector 422 is installed in the mounting groove 411, the near-eye display module 100 is at least partially embedded in the mounting groove 411, so that the mounting groove 411 can form a space for accommodating the near-eye display module 100, thereby reducing the size of the near-eye display device. In this example, the first connector 422 can be arranged opposite the second connector 650. The first connector 422 can be arranged on one of the walls of the mounting groove 411, and the second connector 650 is arranged corresponding to the first connector 422, so that the first connector 422 and the second connector 650 can be attracted to each other.

[0313] In some examples, the main body 400 also includes a frame 402 and temples 430, the temples 430 are located on both sides of the frame 402, the outer periphery of the optical lens 412 is connected to the frame 402, the near-eye display module 100 is connected to the frame 402, the prism 800 is connected to the near-eye display module 100 or the frame 402, and an electrical component 640 is provided on the temples 430, and the near-eye display module 100 is electrically connected to the electrical component 640. In this example, the near-eye display module 100 is installed on the frame, and the electrical component is installed on the temples, so that the near-eye display module and the electrical component are separated, which makes full use of the space on the frame and helps to reduce the volume and weight of the temples. The electrical component 640 in this example can be a battery, or it can be a circuit board or other electrical structure.

[0314] Please refer to Figure 42. In some examples, a receiving groove 413 is provided on the frame 402, and the near-eye display module 100 is at least partially embedded in the receiving groove 413; the near-eye display module 100 includes a display component 140 and an optical component 143 on the side of the display component 140 facing the prism 800, the display component 140 is at least partially provided in the receiving groove 413, and the display component 140 is electrically connected to the electrical component 640.

[0315] The accommodating groove 413 can be a groove recessed toward the inside of the frame 402. The accommodating groove 413 is used to form a space for accommodating the near-eye display module 100, thereby reducing the problem of the near-eye display module 100 protruding from the outside of the main body 400 and causing the volume of the main body 400 to increase. The accommodating groove 413 can be located on the wall surface of the frame 402 facing the human eye side or the environmental side to fully utilize the thickness space of the main body 400 in the direction from the human eye side to the environmental side, thereby helping to reduce the overall volume of the near-eye display device. The near-eye display module 100 can be partially or completely located in the accommodating groove 413, and the light-emitting surface of the near-eye display module 100 faces the outside of the accommodating groove 413 to reduce the volume of the near-eye display device. In some examples, the first connecting member 422 described above is provided in the accommodating groove 413, and the second connecting member 650 described above is provided on the near-eye display module. The first connecting member and the second connecting member are magnetically connected to reduce the displacement of the near-eye display module.

[0316] In some examples, the prism 800 is connected to at least one of the display assembly 140 or the optical assembly 143. The display assembly 140 is movably engaged with the receiving groove 413 along a fourth direction d to adjust the position of the prism 800 relative to the optical lens 412. The fourth direction d is arranged at an angle to the first direction a. In this example, the receiving groove 413 has a length direction, and the length direction of the receiving groove is arranged along the fourth direction d. When the display assembly 140 moves along the fourth direction d within the receiving groove, the position of the prism also changes synchronously.

[0317] Referring to Figures 39(b), 42, and 39(c), in some examples, the near-eye display module 100 may include a housing 471, a display assembly 140, and an optical assembly 143. The housing 471 has an inner cavity and a via connecting the inner cavity. The display assembly 140 may be mounted in the inner cavity. The optical assembly 143 corresponds to the position of the via. The microdisplay 142 may be one of the aforementioned Micro-LED, uLED, Micro-OLED, LCoS, LCD, DMD / DLP, or LBS. The light beam generated by the microdisplay 142 is transmitted to the outside via the optical assembly 143. Optionally, the microdisplay 142 may also include a driver assembly 148 and a connector 149. The driver assembly 148 may include a circuit board. The connector 149 may be used to connect to an external circuit. The connector 149 may be a flexible circuit board. In some examples, a bracket 150 may be provided on the side of the microdisplay 142 facing the optical assembly 143. The optical assembly 143 may be mounted on the bracket 150 to limit the position of the optical assembly 143. When one of the display component 140 or the optical component 143 moves along the fourth direction d, the relative position of the prism on the optical lens also changes synchronously, thereby changing the light-emitting position of the prism to make the light-emitting position of the prism match the position of the pupil of the human eye.

[0318] In the above-mentioned related embodiments, the optical module 143 may include a light-incoming surface, a first reflecting surface, a second reflecting surface, and a light-emitting surface; the light-incoming surface is located at the first end; the first reflecting surface is located at the second end opposite to the first end; the second reflecting surface is located at the first end, and the second reflecting surface surrounds the light-incoming surface. The light-emitting surface is located at the second end, and the light-emitting surface surrounds the first reflecting surface, and the micro-display assembly faces the light-incoming surface; wherein, the optical module 143 may be a solid base structure made of a transparent or light-transmitting material, the light-incoming surface and the second reflecting surface are located at the first end of the solid base, and the first reflecting surface and the light-emitting surface are located at the second end of the solid base. In some embodiments, the optical module 143 may be a hollow structure, for example, with a hollow structure between the first end and the second end. It is understood that the first reflecting surface and the second reflecting surface are coated with a reflective film, such as a metal or metal alloy reflective film such as silver or aluminum. The microdisplay 142 faces the light incident surface, and the light generated by the microdisplay 142 enters from the light incident surface and is projected onto the first reflective surface, then reflected by the first reflective surface to the second reflective surface, and finally emitted from the light emitting surface, wherein the first reflective surface and the second reflective surface may include one or a combination of inclined planes, curved surfaces, spherical surfaces, aspherical surfaces or free-form surfaces, and the incident surface and the exit surface may be one or a combination of planes, curved surfaces, spherical surfaces, aspherical surfaces or free-form surfaces.

[0319] In some embodiments, the first reflective surface and the light-emitting surface can be continuous surfaces, and the light-input surface and the second reflective surface can be continuous surfaces. The continuous surfaces can be understood as being constructed by the same function. For example, they are all free-form surfaces constructed using the same Zernike polynomial function. In some embodiments, the surface formed by the first reflective surface and the light-emitting surface, and the surface formed by the light-input surface and the second reflective surface are constructed by the same function, and the two can be parallel to each other. In some embodiments, the surface formed by the first reflective surface and the light-emitting surface, and the surface formed by the light-input surface and the second reflective surface are all free-form surfaces.

[0320] In some embodiments, the light-incoming surface and the first reflecting surface can both be circular, elliptical, or polygonal, etc., and the shapes of the second reflecting surface and the light-emitting surface can be polygonal, circular, elliptical, a closed shape formed by an arc + straight edges, etc. In some embodiments, the light-incoming surface and the first reflecting surface are the same or similar. In some embodiments, the area of ​​the first reflecting surface is greater than or equal to the light-incoming surface, and the area of ​​the light-incoming surface is greater than or equal to the area of ​​the region of the microdisplay used to generate light, thereby ensuring that the light from the microdisplay can fully enter and be fully reflected and then emitted from the light-emitting surface. For other designs or structures of the optical module 143, reference can also be made to the descriptions of the relevant embodiments in the prior Chinese application numbers 2023111912240, 2024205421010, 2023115809662, 2023115822046, or 2024103064600.

[0321] The above description is only an implementation method of the embodiment of the present application, and does not limit the patent scope of the embodiment of the present application. The above specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can make equivalent structural or equivalent process changes using the description and drawings of the embodiment of the present application, or directly or indirectly apply them in other related technical fields. Without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which are also included in the patent protection scope of the embodiment of the present application.

Claims

1. A near-eye display device, characterized in that: include: A display assembly (100) is provided with a first connection structure (310), wherein the first connection structure (310) is used to connect to a wearable component (400), and the display assembly (100) is used to display images; A data acquisition component (200) is communicatively connected to the display component (100), the data acquisition component (200) being configured to allow for releasable connection to the display component (100), the data acquisition component (200) being provided with a second connection structure (320), the second connection structure (320) being used to connect to the wearable component (400), the data acquisition component (200) being used to acquire data, the data including first data and second data; When the first connection structure (310) and the second connection structure (320) are configured to be located on different sides of the wearable component (400), the data acquisition component (200) is configured to acquire the first data, and the display component (100) is configured to perform a first display based on the first data; When the first connection structure (310) and the second connection structure (320) are configured to be simultaneously located on the same side of the wearable component (400), the data acquisition component (200) is configured to acquire the second data, and the display component (100) is configured to perform a second display based on the second data; The first data and the second data are different, and the first display and the second display are different.

2. The near-eye display device according to claim 1, wherein: The wearable component (400) includes a human eye side (410) and an environment side (420); Wherein, when the first connecting structure (310) and the second connecting structure (320) are configured to be located on different sides of the wearable component (400), the first connecting structure (310) is located on the human eye side (410), and the second connecting structure (320) is located on the environment side (420), the first data includes environmental data of the environment side (420), and the first display includes displaying an image based on at least the environmental data; Wherein, when the first connecting structure (310) and the second connecting structure (320) are configured to be located on the same side of the wearable component (400) at the same time; the first connecting structure (310) and the second connecting structure (320) are both located on the human eye side (410), the second data includes human eye data on the human eye side (410), and the second display includes adjusting the displayed image according to the human eye data.

3. The near-eye display device according to claim 1, wherein: When the first connecting structure (310) and the second connecting structure (320) are configured to be located on different sides of the wearing member (400), the first connecting structure (310) and the second connecting structure (320) are coaxially arranged; When the first connecting structure (310) and the second connecting structure (320) are configured to be located on the same side of the wearing member (400) at the same time, the first connecting structure (310) and the second connecting structure (320) are spaced apart from each other; The width of the first connection structure (310) and the second connection structure (320) of the display component (100) and the data acquisition component (200) does not exceed 20 mm, and the thickness of the display component (100) and the data acquisition component (200) does not exceed 20 mm.

4. The near-eye display device according to claim 1, wherein: There are at least two or more first installation positions on the wearing piece (400), wherein the first installation positions are used to install the first connecting structure (310); there are at least two or more second installation positions on the wearing piece (400), wherein the second installation positions are used to install the second connecting structure (320).

5. The near-eye display device according to claim 1, wherein: The data acquisition component (200) includes a data acquisition module (250), wherein the data acquisition module (250) includes one or more of a camera, an acceleration sensor, an infrared sensor, an ambient light sensor, or a touch module.

6. The near-eye display device according to claim 1, wherein: The first connecting structure (310) and the second connecting structure (320) include abutting surfaces for abutting against the wearing member (400); or The first connecting structure (310) and the second connecting structure (320) are both snap-connected to the wearing piece (400); wherein, The first connecting structure (310) and the second connecting structure (320) are both first clamping structures, and at least two second clamping structures are provided on the wearing piece (400), and the first clamping structure is clamped with the second clamping structure; in the first clamping structure and the second clamping structure, one is a clamping slot and the other is a buckle.

7. The near-eye display device according to claim 1, wherein: The first connection structure (310) includes a first shell (3100), wherein a first magnet (311) is disposed in the first shell (3100); the second connection structure (320) includes a second shell (3200), wherein a second magnet (321) is disposed in the second shell (3200).

8. The near-eye display device according to claim 1, wherein: The near-eye display device further comprises a first extension segment (520), a second extension segment (530) and a connecting segment (540), wherein the connecting segment (540) connects the first extension segment (520) and the second extension segment (530) respectively; The first end of the first extension section (520) is connected to the first connection structure (310), and the second end of the first extension section (520) is connected to the connection section (540); The first end of the second extension section (530) is connected to the second connection structure (320), and the second end of the second extension section (530) is connected to the connection section (540); The first extension section (520) and the second extension section (530) are spaced apart to form a gap (510), and the gap (510) is used to accommodate the wearing piece (400).

9. The near-eye display device according to claim 8, wherein: The first extension section (520) and the second extension section (530) comprise elastic material, and the first extension section (520) and the second extension section (530) are configured to allow them to move closer to or farther from each other to adjust the size of the gap (510).

10. The near-eye display device according to claim 1, wherein: The display assembly (100) comprises a first housing (110) and a first cover (120); a first power supply module and a display module (140) are provided inside the first housing (110), and the first power supply module is electrically connected to the display module (140); the first cover (120) is mounted on the first housing (110), and the first cover (120) is fixedly connected or detachably connected to the first connecting structure (310).

11. The near-eye display device according to claim 10, wherein: The first power supply module comprises a first battery module (131) and a first power supply circuit board (132), wherein the first battery module (131) is electrically connected to the first power supply circuit board (132); The display module (140) includes a first main control circuit board (141), a micro display (142), and an optical module (143); the first main control circuit board (141) is electrically connected to the micro display (142) and the first power supply circuit board (132); the optical module (143) is arranged on the light-emitting side of the micro display (142), and is used for allowing light emitted by the micro display (142) to pass through the optical module (143); The first housing (110) includes a light-transmitting light-emitting portion (112); wherein one side of the optical module (143) faces the micro-display (142), and the other side faces the light-emitting portion (112); A first antenna module (160) is provided on the side of the first main control circuit board (141), and the first antenna module (160) is used to establish a wireless communication connection with the data acquisition component (200).

12. The near-eye display device according to claim 11, wherein: The first battery module (131) is annular and surrounds the display module (140) and the first power supply circuit board (132); or The first battery module (131) has a sheet-like structure and is parallel to the first power supply circuit board (132).

13. The near-eye display device according to claim 5, wherein: The data acquisition component (200) comprises a second housing (210) and a second cover (220); a second power supply module and a second functional circuit board are provided inside the second housing (210), and the second power supply module is electrically connected to the second functional circuit board; The data acquisition module (250) is arranged inside or outside the second housing (210); the data acquisition module (250) is electrically connected to the second functional circuit board; wherein the data acquisition module (250) is integrated on the second functional circuit board to form an integrated structure, or / and the data acquisition module and the second functional circuit board are separated structures; The second cover (220) is mounted on the second housing (210), and the second cover (220) is fixedly connected or detachably connected to the second connecting structure (320).

14. The near-eye display device according to claim 13, wherein: The second power supply module comprises a second battery module (231) and a second power supply circuit board (232), wherein the second battery module (231) is electrically connected to the second power supply circuit board (232); The second functional circuit board is electrically connected to the second power supply circuit board (232); A second antenna module (260) is provided on the side of the second functional circuit board, and the second antenna module (260) is used to establish a wireless communication connection with the display component (100); There are two second functional circuit boards, respectively named as second functional circuit board I (241) and second functional circuit board II (242). The data acquisition module (250) includes a camera (251) and an ambient light sensor (252), wherein the camera (251) is integrated on the second functional circuit board I (241), the ambient light sensor (252) is integrated on the second functional circuit board II (242), and the camera (251) passes through the second functional circuit board II (242).

15. The near-eye display device according to claim 14, wherein: The second battery module (231) has a ring-shaped structure and surrounds the periphery of the second power supply circuit board (232) and the second functional circuit board; or The second battery module (231) has a sheet-like structure and is parallel to the second power supply circuit board (232) and the second functional circuit board.

16. A wearable device, characterized in that: The invention comprises a wearable component (400) and a near-eye display device according to any one of claims 1 to 15; the wearable component (400) is used to be worn on the head of a user; the display component (100) and the data acquisition component (200) are both detachably connected to the wearable component (400).

17. A method for controlling a near-eye display device, characterized in that: A near-eye display device according to any one of claims 1 to 15, wherein the near-eye display device comprises a display component (100) and a data acquisition component (200) communicatively connected to each other, the display component (100) being provided with a first connection structure (310), the data acquisition component (200) being provided with a second connection structure (320), and the data acquisition component (200) being configured to allow releasable connection to the display component (100); the method comprising: When it is obtained that the first connection structure (310) and the second connection structure (320) are respectively located on different sides of the wearable component (400), the data acquisition component (200) is configured to obtain first data, and the display component (100) is configured to perform a first display based on the first data; When it is obtained that the first connection structure (310) and the second connection structure (320) are simultaneously located on the same side of the wearable component (400), the data acquisition component (200) is configured to obtain second data, and the display component (100) is configured to perform a second display based on the second data, wherein the first data and the second data are different, and the first display and the second display are different.

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