Head-mounted display device

Abstract

The utility model discloses a head-mounted display device, which relates to the technical field of electronic equipment and comprises a supporting structure and a main board, at least one stacking area is arranged in the head-mounted display device, and the main board is provided with a first hard board part, a second hard board part and a first flexible board part in the stacking area. The first hard plate part is installed on a first supporting part of the supporting structure, the second hard plate part is stacked on the side, away from the first supporting part, of the first hard plate part, and one end of the first flexible plate part is connected with the first hard plate part. The other end of the first flexible plate part is folded upwards to the side, away from the first supporting part, of the first hard plate part and is connected with the second hard plate part. According to the head-mounted display device, through a stacking mode, the mounting position and space of the supporting structure in the thickness direction are fully utilized, and the space occupied by the display unit and the mainboard in the width direction of the head-mounted display device is reduced.

Description

Technical Field

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

[0002] With the development of science and technology, head-mounted display devices are becoming more and more popular. Head-mounted display devices generally include AR glasses, VR glasses or MR glasses, etc., which usually include a frame and an optical module arranged in the frame. Both sides of the frame have structures for fitting with the head, such as headbands or temples, etc., so that users can wear and use them easily.

[0003] At present, in order to solve the problems related to the low wearing comfort of head-mounted display devices, head-mounted display devices are gradually becoming smaller and lighter. However, this has also led to the installation space that can be provided by the frames of head-mounted display devices becoming smaller and smaller, which has put the miniaturization and lightweight development of head-mounted display devices into a bottleneck, making it difficult to further improve the user's wearing experience. Utility Model Content

[0004] The purpose of the embodiments of the present invention is to provide a head-mounted display device that can solve the above-mentioned problems existing in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] Provided is a head-mounted display device, comprising:

[0007] A support structure is provided with a first support portion;

[0008] A main board is arranged on the supporting structure, and at least one stacking area is provided in the head-mounted display device. The main board is provided with a first hard board portion, a second hard board portion and a first flexible board portion in the stacking area. The first hard board portion is installed on the first supporting portion, and the second hard board portion is stacked on the side of the first hard board portion facing away from the first supporting portion. One end of the first flexible board portion is connected to the first hard board portion, and the other end of the first flexible board portion is folded upward to the side of the first hard board portion facing away from the first supporting portion and connected to the second hard board portion.

[0009] As an optional implementation, it also includes:

[0010] A display unit is provided on the other side of the first supporting portion;

[0011] A first flexible connection line, one end of which is connected to the display unit, and the other end of which is electrically connected to the first hard board portion or the second hard board portion.

[0012] The second hard board portion, the first hard board portion, and the display unit are stacked in sequence, thereby fully utilizing the installation space in the thickness direction of the head-mounted display device. In addition, the display unit directly converts signals through the mainboard, thereby reducing the space occupied by the display unit and the mainboard in the width direction of the head-mounted display device.

[0013] As an optional implementation, the other end of the first flexible connecting line is folded upward between the first hard plate portion and the second hard plate portion, and is electrically connected to the first hard plate portion or the second hard plate portion.

[0014] One end of the first flexible connection line is located between the first hard board portion and the second hard board portion, so that the cable socket for connecting the first flexible connection line can be accommodated between the first hard board portion and the second hard board portion, thereby saving vertical layout space.

[0015] As an optional implementation, the surface area of the second hard plate portion is smaller than the surface area of the first hard plate portion.

[0016] The surface area of the second hard plate portion is smaller, and a yield structure can be formed on the first hard plate portion, which is beneficial to the ergonomic design of the head-mounted display device.

[0017] As an optional embodiment, the support structure includes:

[0018] a first support member, formed with the first support portion;

[0019] a second support member detachably mounted on the first support member, the second support member being located on a side of the first support member facing away from the first support portion, and a display unit being provided between the first support member and the second support member;

[0020] The modular design method is used to simplify the processing and assembly difficulty of the support structure, and the first support member and the second support member are used to jointly constrain the display unit, thereby improving the positioning accuracy of the display unit.

[0021] The second hard plate portion and the first support member are bonded together by an adhesive member, one end of the adhesive member is bonded to a side surface of the second hard plate portion facing away from the first hard plate portion, and the other end of the adhesive member is bonded to the first support member.

[0022] The first flexible connecting line and the adhesive component jointly constrain the second hard plate portion, thereby improving the stability of the second hard plate portion on the first hard plate portion and preventing the second hard plate portion from shaking or even loosening during use of the head-mounted display device.

[0023] As an optional embodiment, the first support member is provided with a threading opening passing through two opposite sides of the first support portion;

[0024] The first flexible connecting line is folded upward from the display unit through the wire threading opening to connect to the first hard board portion.

[0025] By utilizing the installation space provided by the support structure in the length direction, the space occupancy of the first flexible connecting line in the width direction is reduced to the greatest extent, making the structure of the head-mounted display device more compact.

[0026] As an optional embodiment, a receiving groove is recessed on a side of the first supporting member close to the second supporting member, and a notch of the receiving groove faces the second supporting member;

[0027] The display unit is disposed in the accommodating groove.

[0028] The display unit is constrained in the accommodation groove by the first supporting member and the second supporting member, thereby improving the positioning accuracy of the display unit in all directions.

[0029] As an optional embodiment, a second supporting portion is further provided on a side of the second supporting member facing away from the first supporting member, and the supporting structure is provided with a light-transmitting opening passing through the second supporting portion;

[0030] The head-mounted display device further includes:

[0031] A display lens is mounted on the support structure through the second support portion, and the display unit faces the display lens.

[0032] As an optional embodiment, the support structure is further provided with at least one third support portion, the third support portion is located on one side of the first support portion, and the third support portion and the first support portion are in a bent structure or a stepped structure;

[0033] The mainboard further includes:

[0034] a third hard plate portion, disposed on the third supporting portion;

[0035] a second flexible plate portion, wherein the third hard plate portion is connected to the second hard plate portion via the second flexible plate portion; or

[0036] The third hard plate portion is connected to the first hard plate portion through the second flexible plate portion.

[0037] By providing a third hard plate portion on the mainboard and a third support portion provided by the support structure, the head-mounted display device can provide a variety of usage functions and ensure that the layout of each hard plate portion on the support structure meets the design requirements of the head-mounted display device.

[0038] As an optional embodiment, there are two first support parts, and the two first support parts are arranged on the support structure at intervals along the length direction;

[0039] The first hard plate portion is disposed in each of the two first support portions, and the second hard plate portion is stacked on each of the two first hard plate portions, and the two second hard plate portions are connected by the third flexible plate portion.

[0040] The beneficial effects of the present invention are as follows: by providing at least one stacking area inside the head-mounted display device, a mainboard for connecting with the display unit can be arranged on the first supporting portion of the supporting structure in a stacked manner, thereby fully utilizing the installation position and space of the supporting structure in the thickness direction and reducing the space occupied by the display unit and the mainboard relative to the head-mounted display device in the width direction;

[0041] The main board is set to a structure of a first hard board part, a second hard board part and a first flexible board part, so that the first hard board part and the second hard board part are arranged on the first support part in a stacked manner, and the first hard board part and the second hard board part can be kept connected by folding the first flexible board part. By utilizing the physical characteristics of the first flexible board part, the setting freedom of the main board on the first support part is improved, and the thickness space of the head-mounted display device is fully utilized between the first hard board part, the second hard board part and the display unit, which is conducive to the miniaturization and lightweight design of the head-mounted display device, and can also reduce the torque applied to the head-mounted display device by the user when the head-mounted display device is worn, thereby effectively reducing the wearing burden of the user and improving the user's wearing experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0043] Figure 1 This is one of the exploded views of the head-mounted display device according to an embodiment of the present utility model;

[0044] Figure 2 for Figure 2 A magnified view of part A;

[0045] Figure 3 This is the second exploded view of the head-mounted display device according to an embodiment of the present utility model;

[0046] Figure 4 for Figure 4 Magnified view of part B;

[0047] Figure 5 This is a schematic diagram of the internal structure of the head-mounted display device according to an embodiment of the present invention (the frame is omitted);

[0048] Figure 6 This is a cross-sectional view of the internal structure of the head-mounted display device according to an embodiment of the present utility model (the frame is omitted);

[0049] Figure 7 This is an exploded view of the local structure of the head-mounted display device according to an embodiment of the present utility model;

[0050] Figure 8 This is one of the structural diagrams of the first supporting member according to an embodiment of the present utility model;

[0051] Figure 9 This is the second structural diagram of the first support member in an embodiment of the present utility model.

[0052] In the figure: 10, supporting structure; 11, first supporting member; 111, first supporting portion; 1111, second mounting hole; 1112, positioning column; 112, threading port; 113, accommodating groove; 114, third supporting portion; 12, second supporting member; 121, second supporting portion; 123, light-transmitting port; 13, mounting component; 131, mounting groove; 20, mainboard; 21, first hard board portion; 211, cable female socket; 212, first mounting hole; 213, positioning hole; 22, second hard board portion; 23, first flexible board portion; 24, third hard board portion; 25, second flexible board portion; 26, third flexible board portion; 30, display unit; 31, first flexible connecting line; 40, adhesive. DETAILED DESCRIPTION

[0053] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the embodiments of the present invention are described in further detail below. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by those skilled in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0054] In the description of this utility model, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0055] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0056] Head-mounted display devices are a broad concept that encompasses a variety of products that provide users with virtual reality (VR), augmented reality (AR) or mixed reality (MR) experiences through different technologies and designs.

[0057] As can be seen from the background technology, in general, the main body of a head-mounted display device is composed of a frame and an optical module arranged in the frame. The frame and the optical module together determine the wearing comfort, visual effects and overall performance of the device.

[0058] Among them, the frame serves as the basic structure of the head-mounted display device, used to support the optical module and other electronic components, and ensure that the device can be worn stably on the user's head.

[0059] The optical-mechanical module is a key component in head-mounted display devices, responsible for converting image or video signals into visible optical signals and projecting them into the user's eyes through lenses. It typically includes a display screen, optical lenses, a lighting system, and related electronic control components. The display screen is responsible for displaying image or video content, the optical lenses are responsible for magnifying the image and projecting it into the user's field of view, the lighting system provides sufficient light to illuminate the display screen, and the electronic control components are responsible for adjusting image parameters such as brightness and contrast.

[0060] To enhance the wearing comfort and aesthetics of head-mounted display devices, head-mounted display devices are becoming increasingly smaller and lighter. Existing AR glasses utilize a slender PCB motherboard mounted above the lenses, connected to optical modules located at the two lenses. The motherboard drives the modules, enabling the AR glasses to operate. However, using this traditional approach, AR glasses require only a flat upper frame structure to accommodate the motherboard, resulting in a single design and preventing the creation of multiple curved shapes similar to those found in conventional glasses and sunglasses.

[0061] Therefore, due to the limitations of consumers' aesthetic demands for traditional eyewear products, the installation space that can be provided by the frames of head-mounted display devices is limited. When the structure and size of the optical module remain unchanged, the existing motherboard setting scheme cannot meet the development needs of miniaturization, lightweight and diversified shapes of head-mounted display devices, making it difficult to further improve the user's consumption experience.

[0062] In view of this, the present embodiment provides a head-mounted display device, which solves a series of technical problems such as reduced wearing comfort caused by the large size of the device, which is not conducive to long-term wearing by users, by changing the setting method of the display unit 30 and the main board 20 in the head-mounted display device.

[0063] Please refer to the attached Figures 1-6 The head-mounted display device includes a support structure 10, which serves as a supporting base for the relevant components of the head-mounted display device and mainly plays the role of connecting and supporting relevant components and functional modules.

[0064] Specifically, in the specific application scenario of the head-mounted display device, the support structure 10 can adopt a structure similar to a support beam, which is placed horizontally near the user's brow bone in the worn state to connect the wearing parts such as the temples or headbands on both sides of the head-mounted display device, as well as other components and functional modules (usually including but not limited to the display unit 30, camera, etc.) to form a stable overall structure.

[0065] It is understandable that in order to reduce the weight of the head-mounted display device and improve wearing comfort, the support structure 10 is usually made of lightweight and high-strength materials, such as magnesium alloy, aluminum alloy, etc., so that the head-mounted display device has good mechanical properties, as well as good corrosion resistance and wear resistance, providing certain protection for the internal parts of the head-mounted display device as well as electronic components, optical components, etc.

[0066] From the above content, it can be seen that in the head-mounted display device, the supporting beam is not only a simple structural component, it also works closely with other components of the device (such as the display unit 30, camera, sensor, etc.) to jointly realize various functions of the head-mounted display technology.

[0067] The support structure 10 in this embodiment is provided with a first support portion 111, wherein the support structure 10 can provide corresponding installation positions for relevant components and functional modules in the head-mounted display device through the first support portion 111, so that the relevant components and functional modules can form a relatively stable matching relationship with the support structure 10 through the corresponding support portion.

[0068] There is at least one stacking area in the head-mounted display device. The stacking area can be understood as an installation space extending along a preset direction inside the head-mounted display device, so that the above-mentioned related components can be arranged in a stacked manner in the head-mounted display device along the space extended by the stacking area, thereby changing the internal layout of the head-mounted display device, improving the space utilization of the device, and allowing the electronic devices on the motherboard to be densely integrated in the stacking area, while other areas use flexible circuits such as FPC, which are bent according to the specific appearance design of the glasses, thereby ensuring that the head-mounted display device can be designed into a variety of shapes, making the glasses conform to the miniaturized design.

[0069] Specifically, the first support portion 111 is used to provide a corresponding installation position for the support motherboard 20 of the head-mounted display device, and it can also provide a certain installation space for the display unit 30 in the head-mounted display device, so that the motherboard 20 and the display unit 30 can be arranged adjacent to each other in the device to shorten the length of the connecting line and improve the compactness of the structure. The motherboard 20 is the core carrier of the electronic components in the head-mounted display device, which is not limited to including modules such as processors, memory, and communication modules. The display unit 30 is the screen part that directly or indirectly displays images and information to the user. In combination with the above content, the display unit 30 is usually part of the optical machine module, which can be, but is not limited to, LCD (liquid crystal display), OLED (organic light emitting diode display) or other types of display technology.

[0070] Generally speaking, the display unit 30 needs to be connected to the mainboard 20. A screen adapter board, located between the mainboard 20 and the display unit 30, converts electronic and image signals. The display unit 30 then receives the corresponding image signal and converts it into a visible optical image. The two can be connected via a first flexible cable 31, which is used to transmit signals and data, such as image signals and control signals, between the mainboard 20 and the display unit 30.

[0071] It should be noted that the thickness direction described in this embodiment refers to the direction parallel to the length direction of the user's head when the user is wearing the head-mounted display device (i.e., the direction parallel to the length direction of the user's head). Figure 1 、 Figure 3 The “thickness direction” indicated by the arrow in the middle), the width direction in this embodiment refers to the direction close to the user's face and away from the user's face (i.e., the direction of the head-mounted display device). Figure 1 、 Figure 3 The “width direction” indicated by the arrow in the figure), and the length direction in this embodiment refers to the direction defined by the straight line connecting the two eyes of the user when the user is wearing the head-mounted display device (i.e., the direction of the vertical line). Figure 1 、 Figure 3 The arrow in the figure indicates the “length direction”).

[0072] Continuing with the above embodiment, the mainboard 20 is provided on the first support portion 111. Specifically, the mainboard 20 is provided with a first rigid board portion 21, a second rigid board portion 22, and a first flexible board portion 23 within the stacking area provided by the head-mounted display device. That is, the mainboard 20 can be specifically a rigid-flex board. The rigid-flex board combines the flexibility and bendability of flexible printed circuits (FPCs) and flexible flexible cables (FFCs) with the rigidity and stability of rigid printed circuits (PCBs). This allows the circuit board to maintain flexibility while also carrying heavier components and optimizing the internal space layout. It should be noted that the first rigid board portion 21 and the second rigid board portion 22 of the embodiment of the present invention are not limited to rigid printed circuits (PCBs). They can also be rigid-flex boards or flexible printed circuits (FPCs) with integrated electronic components, or other circuit board structures that are not suitable for free bending.

[0073] On the basis of the above, the first hard board portion 21 and the second hard board portion 22 are connected through the first flexible board portion 23 to ensure the integrity of the main board 20. The first hard board portion 21 is installed on the first support portion 111, and the second hard board portion 22 is stacked on the side of the first hard board portion 21 away from the first support portion 111, that is, the second hard board portion 22 is located on the upper side of the first hard board portion 21, and one end of the first flexible board portion 23 is connected to the first hard board portion 21, and the other end of the first flexible board portion 23 is folded upward to the side of the first hard board portion 21 away from the first support portion 111 and connected to the second hard board portion 22.

[0074] The main board 20 is configured as a structure consisting of a first hard board portion 21, a second hard board portion 22 and a first flexible board portion 23, so that the first hard board portion 21 and the second hard board portion 22 can be arranged in a stacked manner, utilizing the installation space of the head-mounted display device in the thickness direction, and the first hard board portion 21 and the second hard board portion 22 can be maintained in connection through the first flexible board portion 23, so that the main board 20 forms a stacked structure of multiple layers of main boards at the first support portion 111, forming a sufficient main board area to meet the installation requirements of electronic devices, and realizing the centralized setting of electronic devices, thereby increasing the design freedom of other positions of the glasses, and facilitating the miniaturization, lightweight and diversified design of head-mounted display devices, thereby enhancing the user's wearing experience. It should be understood that when the first hard plate portion 21 and the second hard plate portion 22 are stacked in the thickness direction, the portion of the first flexible plate portion 23 located between the first hard plate portion 21 and the second hard plate portion 22 is in a bent state, and the first flexible plate portion 23 often extends outward from the first hard plate portion 21 and bends upward, and finally extends to the second hard plate portion 22, and in order to ensure the reliability of the first flexible plate portion 23.

[0075] Optionally, the first flexible plate portion 23 between the first rigid plate portion 21 and the second rigid plate portion 22 may have an R angle greater than or equal to R0.5. Due to material limitations, the first flexible plate portion 23 itself has limited bendability. Therefore, the current first flexible plate portion 23 should have an R angle greater than or equal to R0.5 to prevent the first flexible plate portion 23 from being over-bent and causing damage.

[0076] The first hard board portion 21 and the second hard board portion 22 can be used to stack some electronic components included in the mainboard 20 to ensure that the relevant components have a relatively stable installation state on the mainboard 20, while the first flexible board portion 23 can make the mainboard 20 suitable for the installation space provided in the head-mounted display device, and bend so that the first hard board portion 21 and the second hard board portion 22 are stacked to form a multi-layer mainboard structure, thereby improving the versatility of the mainboard 20 and ensuring the reliability of the mainboard 20.

[0077] Please continue to refer to the attached Figures 1-6 The display unit 30 is arranged on the other side of the first support portion 111, and can be arranged in the same way as the first hard plate portion 21 in the stacking direction along the thickness direction, or can be arranged adjacent to each other in other directions (such as side by side along the width direction or length direction of the head-mounted display device). The two are connected by a first flexible connection line 31, one end of the first flexible connection line 31 is connected to the display unit 30, and the other end of the first flexible connection line 31 is electrically connected to the first hard plate portion 21 or the second hard plate portion 22.

[0078] In one embodiment, the display unit 30 and the first hard plate portion 21 or the second hard plate portion 22 are also stacked, and by connecting the two with the first flexible connecting line 31, it can be well adapted to this arrangement, allowing the first flexible connecting line 31 to be connected between the two in an upwardly folded manner, so that the space of the head-mounted display device in the thickness direction can be fully utilized.

[0079] It should also be noted that the first flexible connection line 31 can be a flexible flat cable (FFC) or a flexible circuit board (such as an FPC). Since the display unit 30 and the motherboard 20 are two relatively independent entities, the display unit 30 and the motherboard 20 only need to form an electrical connection relationship to meet the design requirements of the display unit.

[0080] The main board 20 is connected to the display unit 30 using the first hard board portion 21 or the second hard board portion 22, and can also provide an installation position for the cable socket 211 for the first flexible connection line 31 on the display unit 30 through the first hard board portion 21 or the second hard board portion 22. In this example, the cable socket 211 is arranged on the first hard board portion 21, and the cable socket 211 is stably installed on the first hard board portion 21, thereby forming a reliable connection with the display unit 30 through the first flexible connection line 31.

[0081] Among them, when the display unit 30 is connected to the first hard board part 21 or the second hard board part 22, it is necessary to set a cable mother seat 211 on the first hard board part 21 or the second hard board part 22 for corresponding connection with the display unit 30, but the cable mother seat 211 itself has a certain height on the circuit board. If the display unit 30 is connected to the outside of the stacking structure formed by the first hard board part 21 and the second hard board part 22, the cable mother seat 211 itself will also cause the size of the stacking structure in the thickness direction to increase. Taking into account the need for sufficient spacing between the first hard board portion 21 and the second hard board portion 22 of this embodiment to ensure that the electronic devices between the first hard board portion 21 and the second hard board portion 22 do not collide, this embodiment arranges the cable female socket 211 between the first hard board portion 21 and the second hard board portion 22, so that the first flexible connecting line 31 of the display unit 30 is connected between the two in an upward folding manner, and is connected to the cable female socket 211 on the first hard board portion 21 (according to actual needs, it can also be arranged on the second hard board portion 22), which can further save space.

[0082] In summary, this embodiment combines rigid and flexible parts to allow the head-mounted display device to more flexibly design the shape and structure of the mainboard 20, as well as the way the mainboard 20 cooperates with the display device (including but not limited to relative position and connection method, etc.), so as to adapt to complex product structures and space limitations, thereby improving the overall performance and reliability of the product.

[0083] In addition, the first flexible connecting line 31 is used to connect one end of the first hard board part 21 or the second hard board part 22, and is folded upward from the display unit 30 to between the first hard board part 21 and the second hard board part 22, and is electrically connected to the first hard board part 21 or the second hard board part 22, so that the cable socket 211 can be set in the space gap between the first hard board part 21 and the second hard board part 22, saving the layout space in the thickness direction of the internal thickness of the device, while allowing the first flexible connecting line 31 to remain unchanged regardless of whether it is connected to the first hard board part 21 or the second hard board part 22, thereby ensuring the consistency of the product structure.

[0084] The main board 20 adopts a combination of soft and hard boards. Even if the first flexible board part 23 (and the second flexible board part 25 mentioned in the subsequent content) can still maintain good durability and reliability after multiple bending, compared with the above-mentioned method of requiring an additional screen adapter board to be set between the main board 20 and the display unit 30, it can effectively reduce signal attenuation and distortion, improve signal integrity and transmission quality, and significantly reduce crosstalk and reflection problems during signal transmission, thereby ensuring stable signal transmission.

[0085] Since the rigid-flex board reduces the number of welding points and connectors, the production and assembly process of the mainboard 20 is also simplified, thereby reducing the assembly cost and failure rate of the head-mounted display device.

[0086] Continuing with the above embodiment, taking the above-mentioned first hard board portion 21 and the second hard board portion 22 as a hard circuit board (PCB), and the first flexible board portion 23 (and the second flexible board portion 25) as a flexible circuit board (FPC) as an example, the first hard board portion 21 and the first flexible board portion 23 (and the second flexible board portion 25), as well as the second hard board portion 22 and the first flexible board portion 23 (and the second flexible board portion 25) can be pressed together through a lamination process to achieve the purpose of making the mainboard 20 form a whole.

[0087] In order to allow the mainboard 20 to be effectively mounted on the first supporting portion 111, the first hard plate portion 21, which is mainly connected to the first supporting portion 111, can also be drilled to form through holes or positioning holes 213 required for mounting. Figure 1-Figure 7 As shown, the first hard plate portion 21 in this example is provided with a first mounting hole 212 and a positioning hole 213, and correspondingly, the first support portion 111 located on the support structure 10 is provided with a second mounting hole 1111 and a positioning column 1112. A reliable connection relationship can be formed between the first mounting hole 212 and the second mounting hole 1111 by connecting parts such as screws and pins, and the positioning column 1112 can be inserted into the positioning hole 213 to ensure the assembly accuracy between the first hard plate portion 21 and the first support portion 111.

[0088] It is worth mentioning that the rigid-flexible board formed by the lamination process not only has a more reliable connection with the support structure 10 and the display unit 30, but also saves the setting of the screen adapter board compared to the above-mentioned embodiment. The main board 20 can directly integrate the adapter circuit for converting signals on the first rigid board part 21 to achieve the function of directly performing signal conversion through the main board 20. Moreover, since the thickness of the rigid-flexible board is relatively thinner, the space of the head-mounted display device in the thickness direction is correspondingly saved, which is conducive to the miniaturization and lightweight design of the device.

[0089] In one embodiment, the surface area of the second hard plate portion 22 is smaller than the surface area of the first hard plate portion 21, so that the second hard plate portion 22 forms a yield structure above the first hard plate portion 21, which is beneficial to the ergonomic design of the head-mounted display device, such as facilitating the matching of the curved structure of the eyeglass shell.

[0090] Please refer to the attached Figure 1-Figure 7 The support structure 10 of this embodiment can adopt a split structure, which specifically includes a first support member 11 and a second support member 12, wherein the first support member 11 forms a first support portion 111, and the second support member 12 is assembled to the first support member 11 in a detachable manner, and the second support member 12 is located on the side of the first support member 11 away from the first support portion 111. The display unit 30 is arranged between the first support member 11 and the second support member 12, and the display unit 30 can be fixed to the first support member 11 and / or the second support member 12 according to the design requirements of the head-mounted display device.

[0091] The support structure 10 of this embodiment adopts a modular design, being divided into a first support member 11 and a second support member 12. In addition to meeting the design and assembly requirements of the head-mounted display device, this embodiment also effectively improves construction efficiency and flexibility, reducing the difficulty of installing components and functional modules such as the mainboard 20 and display unit 30 on the support structure 10. Furthermore, the split design of the support structure 10 also facilitates its processing and production, reducing the difficulty of the equipment's manufacturing process.

[0092] From the above, it can be understood that the first hard plate portion 21 is directly fixed to the support structure 10 through the first support portion 111. However, since the second hard plate portion 22 needs to be stacked on the first hard plate portion 21, the second hard plate portion 22 cannot form a direct assembly relationship with the first support portion 111. In the above embodiment, the second hard plate portion 22 is only constrained by the first hard plate portion 21 through the first flexible plate portion 23. In order to ensure that the second hard plate portion 22 also has a reliable assembly relationship in the head-mounted display device, please refer to the attached Figure 1-Figure 5 The second hard plate portion 22 and the first support member 11 are glued together by an adhesive 40. One end of the adhesive 40 is bonded to a side of the second hard plate portion 22 facing away from the first hard plate portion 21, and the other end of the adhesive 40 is bonded to the first support member 11, so as to improve the assembly reliability between the second hard plate portion 22 and the support structure 10.

[0093] By gluing and fixing the second hard plate portion 22 to the support structure 10 through the adhesive 40, the difficulty of assembling the main board 20 and the support structure 10 can be effectively simplified. On the basis that the first hard plate portion 21 is stably set on the first support portion 111 through the above-mentioned fixing structure, the second hard plate portion 22 only needs to simply form a matching relationship of a certain strength with the support structure 10, which can ensure the reliability of the main board 20 on the support structure 10 and avoid the occurrence of shaking and loosening of the second hard plate portion 22 during the use of the head-mounted display device.

[0094] In the above embodiment, the second hard plate portion 22 and the support structure 10 do not require additional fixing tools such as screws or nuts, which reduces operational difficulty and cost. The adhesive method also allows the second hard plate portion 22 to be quickly fixed to the support structure 10, improving the assembly efficiency of the head-mounted display device and facilitating subsequent disassembly and replacement. Furthermore, the adhesive 40 can accommodate motherboards 20 and support structures 10 of different shapes and sizes, reducing the assembly requirements of the second hard plate portion 22, reducing the requirements for machining errors during the assembly process, and improving applicability.

[0095] In addition, due to the strong adaptability of the adhesive 40, the installation space required by the adhesive 40 in the head-mounted display device is relatively small, ensuring that the head-mounted display device has a simple and compact structure, which is conducive to the miniaturization and lightweight design of the device.

[0096] For example, the adhesive 40 may be, but is not limited to, electrical tape, epoxy adhesive, acrylic adhesive, silicone adhesive, polyurethane adhesive, etc.

[0097] In the embodiment where tape is used as the adhesive member 40, a positioning groove is further provided on one side of the support structure 10 for indicating positioning during the tape pasting process, so as to ensure the accuracy of the tape pasting position and improve the adhesive strength of the tape to a certain extent.

[0098] Continuing with the above embodiment, the first flexible board portion 23 and the adhesive 40 are located on opposite sides of the second rigid board portion 22. Based on the orientation of the head-mounted display device as defined in the above embodiment, the head-shaped board portion and the adhesive 40 are connected to opposite sides of the second rigid board portion 22 in the width direction. This allows the first flexible board portion 23 and the adhesive 40 to constrain the opposite sides of the second rigid board portion 22, ensuring its positioning in the width direction of the head-mounted display device. This reduces vibration and protects the components on the second rigid board portion 22 from damage.

[0099] In the embodiment described above where the support structure 10 includes a first support member 11 and a second support member 12, it can be understood that the first rigid plate portion 21 and the display unit 30 are disposed on opposite sides of the first support member 11 in the thickness direction. This means that the first rigid plate portion 21 and the display unit 30 are blocked by the first support member 11. Therefore, to ensure that the first flexible cable 31 can connect the first rigid plate portion 21 and the display unit 30, the first flexible cable 31 must extend outward from one side of the first support member 11 and fold upward to connect to the outside of the first support member 11 before it can bend upward to the first rigid plate portion 21 located above the first support member 11. However, because the first flexible cable 31 must be partially bent and disposed outside the first support member 11, there is a risk that the first flexible cable 31 may interfere with other components or functional modules in the head-mounted display device, thereby increasing the failure rate of the head-mounted display device.

[0100] For this reason, Figures 1-9 As shown, this embodiment adopts a method of opening a threading hole 112 on the first support member 11 that passes through the opposite sides of the first support part 111, so that the first flexible connection line 31 is folded upward from the display unit 30 through the threading hole 112 to the first hard board part 21, thereby avoiding the situation where the first flexible connection line 31 needs to go around the outside of the first support member 11 before it can be bent to the first hard board part 21, allowing the first flexible board part 23 to be protected by the first support member 11, ensuring a reliable connection between the display unit 30 and the first hard board part 21.

[0101] In one embodiment, please refer to the attached Figures 1-9 The first support member 11 is provided with an upwardly recessed accommodating groove 113 on one side (lower side) close to the second support member 12, and the notch of the accommodating groove 113 faces the second support member 12, so that the notch of the accommodating groove 113 is set toward the second support member 12 and can be blocked by the second support member 12 when the second support member 12 is set on the first support member 11. The accommodating groove 113 can provide a corresponding accommodating space for the display unit 30, and ensure that the display unit 30 will not detach from the second support portion 121 when it is in the accommodating groove 113, thereby ensuring that the display unit 30 is stably assembled.

[0102] In one embodiment, if Figure 1-Figure 7 As shown, a mounting component 13 that can be detachably mounted in the accommodating groove 113 is provided between the first support member 11 and the second support member 12. A mounting groove 131 with a notch facing the bottom of the accommodating groove 113 is provided on the mounting component 13. The display unit 30 is arranged in the mounting groove 131 and is arranged in the accommodating groove 113 by the mounting component 13, so as to further improve the positioning accuracy of the display unit 30 in the assembled state.

[0103] Continuing with the above content, when the display unit 30 is assembled on the mounting component 13 through the mounting groove 131, and the mounting component 13 is arranged in the accommodating groove 113 and supported and constrained by the second support member 12, the display unit 30 can be constrained by the accommodating groove 113 and the mounting component 13, ensuring the accurate positioning accuracy of the display unit 30, and also reducing the need to set too many limiting structures on the support member to act on the display unit 30 in order to ensure the positioning accuracy of the display unit 30, thereby reducing the occurrence of situations where the display unit 30 is crushed, etc.

[0104] At the same time, in an embodiment in which an installation component 13 is provided, removing the installation component 13 from the accommodating groove 113 is simpler than removing the display unit 30 directly from the accommodating groove 113, and the risk of damage to the display unit 30 is also lower, which facilitates the early assembly of the display unit 30 and the subsequent disassembly, inspection and replacement, and reduces the risk of damage to the display unit 30 during disassembly and inspection.

[0105] It should be noted that in an embodiment where a mounting component 13 is further provided between the first support member 11 and the second support member 12, the groove wall of the mounting component 13 located on one side of the mounting groove 131 should be an open structure connected to the outside of the mounting component 13, so that the first flexible connecting line 31 can extend from one side of the display unit 30 through the open part to the outside of the mounting component 13, and finally form a connection relationship with the first hard board portion 21.

[0106] It can also be understood from the above embodiments that, in addition to including a mainboard 20 and a display unit 30, the head-mounted display device in some embodiments also includes but is not limited to components and functional modules such as a head sensing / tracking device, a processor, and a storage / battery.

[0107] In one embodiment, in order to enable the wearer to clearly view the optical image from the display unit 30 while wearing the head-mounted display device, a second support portion 121 is further provided on the side of the second support member 12 facing away from the first support member 11, and the support structure 10 is provided with a light-transmitting opening 123 passing through the second support portion 121.

[0108] In the embodiment where the support structure 10 includes the first support member 11 and the second support member 12 , the second support portion 121 is disposed on a side of the second support member 12 away from the first support member 11 , and the light-transmitting opening 123 is also provided in the second support member 12 .

[0109] Correspondingly, the head-mounted display device also includes a display lens (not shown). The display lens can be understood as an optical lens component in the optical engine module, which can include, but is not limited to, lenses, reflectors, BB optical modules, etc. The display unit 30 faces the display lens so that the propagation direction of the light from the display unit 30 (including when there is a light source) is changed through the display lens, and the light of the optical image is accurately projected onto the user's retina. The display lens is mounted on the support structure 10 via the fourth support portion 122 so that the optical image displayed by the display unit 30 can be transmitted to the display lens through the light transmission port 123, and then further projected to the user's eyes through the display lens.

[0110] Please continue to refer to the attached Figures 1-9 The head-mounted display device also includes a frame (not shown in the figure). The structure of the frame is similar to the structure of glasses commonly worn by the human body. In addition, a hollow receiving cavity is formed inside the upper side of the frame. The support structure 10 is arranged in the receiving cavity. The frame 60 is also provided with an opening connected to the receiving cavity and corresponding to the display unit 30, so that when the display unit 30 is installed on the second support member 12, its optical image can be emitted through the above-mentioned light-transmitting port 123 and the opening to the display lens installed at the opening of the frame, so as to provide the user with a binocular image display function.

[0111] It is understandable that the present embodiment does not impose strict limitations and requirements on the specific structure of the frame. It can refer to the frame structure related to the head-mounted display device in the prior art, as long as it can meet the requirements of having a receiving cavity with a loading support structure and having an opening connected to the receiving cavity for the display unit 30 to be exposed.

[0112] In this head-mounted display device, the support structure 10 is further provided with at least one third support portion 114. This third support portion 114 can be used to provide a mounting location for, but not limited to, the aforementioned components and functional modules, thereby adapting the head-mounted display device to the functional design requirements of different products. In one embodiment, the third support portion 114 and the first support portion 11 form a curved or stepped structure to respectively support the corresponding components or modules.

[0113] Please refer to the attached Figure 1-Figure 7 The third support portion 114 is located on one side of the first support portion 111 and is a stepped structure. This is to avoid interference between related components or modules and the mainboard 20. It is also suitable for the structure of a head-mounted display device, avoiding discomfort caused by excessive concentration of force acting on the user's face due to the structure of the head-mounted display device being too bulky and complicated in the thickness direction. At the same time, it is combined with the first support portion 111 to serve as a reinforcing rib inside the head-mounted display, thereby enhancing the force-bearing capacity of the head-mounted display and making the overall weight of the head-mounted display device more balanced.

[0114] It is important to note that, as the main support structure for the head-mounted display device, the design of the support structure 10 must take into account the structural integrity of the head-mounted display device. Specifically, the support structure 10 must be ergonomically designed to ensure wearer comfort while also controlling structural complexity to a certain extent. Therefore, during the design process, the support structure 10 can be configured with an arc shape that adapts to the shape of the human brow bone, so that it fits the user's head contour as closely as possible during subsequent wear and assembly, reducing pressure and discomfort.

[0115] Therefore, in this embodiment, the first support structure 10 and the third support portion 114 located on the same side of the support structure 10 are arranged to be staggered in the thickness direction of the support structure 10, that is, in addition to being spaced apart along the length direction of the support structure 10, there is also a certain height difference between the first support portion 111 and the third support portion 114. Figure 1-Figure 7 As shown, the first support portion 111 and the third support portion 114 in this embodiment are both arranged on the upper side of the first support member 11, and the third support member is lower than the first support member 11 and is located on one side of the first support member 11 in the length direction. Such an arrangement allows the support structure 10 to adapt to the structure of the corresponding components according to the design requirements of the head-mounted display device, so that the head-mounted display device is more ergonomic, and ensures that the first support portion 111 and the third support portion 114 are located on the support structure 10 and adapt to the structure of various positions of the support structure 10, saving the installation space occupied by the relevant components and functional modules of the head-mounted display device.

[0116] Correspondingly, the main board 20 also includes a third hard board portion 24 and a second flexible board portion 25. The third hard board portion 24 is consistent with the scheme adopted by the first hard board portion 21 and the second hard board portion 22. The third hard board portion 24 and the second flexible board portion 25 can be formed into a whole by lamination, so that the third hard board portion 24 can be stably set on the third support portion 114. Similarly, the third hard board portion 24 can also be fixedly assembled on the third support portion 114 by the assembly method mentioned above, ensuring the stable connection between the main board 20 and the support structure 10.

[0117] It can be understood that since the rigid-flexible board has a higher degree of design freedom, the first flexible board portion 23 can be bent and connected to the stacked first rigid board portion 21 and the second rigid board portion 22, while the second flexible board portion 25 is connected between the first rigid board portion 21 and the third rigid board portion 24.

[0118] It should be noted that the number of the third support portion 114 and the third hard plate portion 24 provided in this embodiment can be set to more than one, as long as the above-mentioned layout method is adopted between each third hard plate portion 24 and between the third hard plate portion 24 and the first hard plate portion 21, so that the structure of the head-mounted display device can be as suitable as possible for the human body shape.

[0119] According to any of the above embodiments, it can be understood that in order for the head-mounted display device to be suitable for human wear, two first support portions 111 should be provided. Moreover, in the above embodiments in which a second support portion 121 is also provided, the two first support portions 111, the two second support portions 121, and related components are symmetrically arranged on both sides of the head-mounted display device. Specifically, the two first support portions 111 are arranged on the support structure 10 at intervals along the length direction.

[0120] In the above embodiment, a first hard board portion 21 is provided in each of the two first support portions 111, and a second hard board portion 22 is stacked on each of the two first hard board portions 21, and the two second hard board portions 22 are connected by a third flexible board portion 26. In this way, the third flexible board portion 26 runs through the entire main board 20 and serves as the main body of the main board 20, allowing the main board 20 to have more sufficient installation freedom and layout space in the head-mounted display device, and also allowing the main board 20 to provide corresponding support for device modules with relatively high assembly stability requirements through the first hard board portion 21, the second hard board portion 22 and the third hard board portion 24, so as to ensure the reliability of the head-mounted display device.

[0121] Correspondingly, the display unit 30 also includes two, which can provide optical images for the wearer's binoculars, and the two second hard board parts 22 are connected by the third flexible board part 26, which ensures that the screen signals of the two display units 30 can be transmitted together to the processor (control unit / chip) in the head-mounted display device for image processing, thereby meeting the needs of binocular synchronous display.

[0122] Based on the above implementation, please continue to refer to the attached Figure 1-Figure 7 In this example, the first flexible connecting line 31 and the first flexible board portion 23 located between the first hard board portion 21 and the second hard board portion 22 are arranged in different directions. The first flexible connecting line 31 extends along the length direction and is folded upward from the display unit 30 to connect to the first hard board portion 21, while the first flexible board portion 23 extends along the width direction and is folded upward from the first hard board portion 21 to connect to the second hard board portion 22.

[0123] The main reason for arranging the first flexible connecting line 31 and the first flexible board portion 23 in different directions in this embodiment is:

[0124] Due to the existence of the support structure 10 (first support member 11), the flexible cable is not suitable for connecting to the first hard plate member by folding over the support structure 10 in the width direction, but is folded onto the first hard plate portion 21 along the length direction of the support structure 10 through the threading opening 112 reserved on the support structure 10. In this way, the width space occupied by the display unit 30 and the first flexible connection cable 31 on the head-mounted display device can be reduced to a certain extent. Moreover, since the size of the display unit 30 itself is larger than the first hard plate portion 21 and the second hard plate portion 22, this threading method is also more conducive to protecting the first flexible connection cable 31.

[0125] Since the first hard plate portion 21 and the second hard plate portion 22 are both arranged on the same side (upper side) of the support structure 10, and in the application of the head-mounted display device, a first flexible plate portion 23 may also be provided in the length direction of the first hard plate portion 21 and the second hard plate portion 22 (connected to the above-mentioned other first hard plate portion 21 or the third hard plate portion 24 through the first flexible plate portion 23). Therefore, the first flexible plate portion 23 is arranged to extend along the width direction and fold upward to between the two, so as to avoid interference with the remaining first flexible plate portions 23. In addition, since the width dimensions of the first hard plate portion 21 and the second hard plate portion 22 are smaller than those of the support structure 10 (completely supported by the first support portion 111), setting the folding back at the width direction position of the first hard plate portion 21 and the second hard plate portion 22 will not have too much impact on the width dimension of the head-mounted display device.

[0126] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other positions or relationships are used solely for ease of description and simplified operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0127] Throughout this specification, references to terms such as "one embodiment" and "example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example.

[0128] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0129] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. A head-mounted display device, characterized in that: include: A support structure (10) is provided with a first support portion (111); A main board (20) is arranged on the supporting structure (10), and at least one stacking area is provided in the head-mounted display device. The main board (20) is provided with a first hard board part (21), a second hard board part (22) and a first flexible board part (23) in the stacking area. The first hard board part (21) is installed on the first supporting part (111), and the second hard board part (22) is stacked on the side of the first hard board part (21) away from the first supporting part (111). One end of the first flexible board part (23) is connected to the first hard board part (21), and the other end of the first flexible board part (23) is folded upward to the side of the first hard board part (21) away from the first supporting part (111) and connected to the second hard board part (22).

2. The head-mounted display device according to claim 1, wherein Also includes: A display unit (30) is arranged on the other side of the first supporting portion (111); A first flexible connecting line (31), one end of the first flexible connecting line (31) is connected to the display unit (30), and the other end of the first flexible connecting line (31) is electrically connected to the first hard plate portion (21) or the second hard plate portion (22).

3. The head-mounted display device according to claim 2, wherein: The other end of the first flexible connecting line (31) is folded upwards to between the first hard plate part (21) and the second hard plate part (22), and is electrically connected to the first hard plate part (21) or the second hard plate part (22).

4. The head-mounted display device according to claim 1, wherein The surface area of the second hard plate portion (22) is smaller than the surface area of the first hard plate portion (21).

5. The head-mounted display device according to claim 2, wherein: The support structure (10) comprises: A first support member (11) is formed with the first support portion (111); a second support member (12) detachably mounted on the first support member (11), the second support member (12) being located on a side of the first support member (11) facing away from the first support portion (111), and a display unit (30) being provided between the first support member (11) and the second support member (12); The second hard plate portion (22) and the first support member (11) are adhesively connected via an adhesive member (40), one end of the adhesive member (40) is adhered to a side surface of the second hard plate portion (22) facing away from the first hard plate portion (21), and the other end of the adhesive member (40) is adhered to the first support member (11).

6. The head-mounted display device according to claim 5, wherein: The first support member (11) is provided with a threading opening (112) passing through two opposite sides of the first support portion (111); The first flexible connecting line (31) is folded upward from the display unit (30) through the threading opening (112) to connect to the first hard plate portion (21).

7. The head-mounted display device according to claim 5, wherein: A receiving groove (113) is recessed on one side of the first supporting member (11) close to the second supporting member (12), and the notch of the receiving groove (113) faces the second supporting member (12); The display unit (30) is disposed in the accommodating groove (113).

8. The head-mounted display device according to claim 5, wherein: A second supporting portion (121) is further provided on a side of the second supporting member (12) facing away from the first supporting member (11), and a light-transmitting opening (123) penetrating the second supporting portion (121) is provided on the supporting structure (10); The head-mounted display device further includes: A display lens is mounted on the support structure (10) via the second support portion (121), and the display unit (30) faces the display lens.

9. The head-mounted display device according to claim 1, wherein: The support structure (10) is further provided with at least one third support portion (114), the third support portion (114) being located on one side of the first support portion (111), and the third support portion (114) and the first support portion (111) being in a bent structure or a stepped structure; The main board (20) further comprises: a third hard plate portion (24), disposed on the third supporting portion (114); a second flexible plate portion (25), wherein the third hard plate portion (24) is connected to the second hard plate portion (22) via the second flexible plate portion 25; or The third hard plate portion (24) is connected to the first hard plate portion (21) via a second flexible plate portion (25).

10. The head mounted display device according to any one of claims 1 to 9, wherein: There are two first support parts (111), and the two first support parts (111) are arranged on the support structure (10) at intervals along the length direction; The first hard plate portion (21) is provided in each of the two first support portions (111), and the second hard plate portion (22) is stacked on each of the two first hard plate portions (21), and the two second hard plate portions (22) are connected via a third flexible plate portion (26).

Images