Near-eye display module with good water mist resistance and wearable device

Abstract

The utility model provides a kind of waterproof fog performance good near-eye display module and wearable equipment, belong to XR display technical field, including module frame, display, support, first optical lens, second optical lens and third optical lens, third optical lens is set to the front end of module frame, second optical lens is set to the rear end of module frame, support is set to the upper end of module frame, support is rectangular frame structure, the inner wall on the length direction of support two ends is equipped with boss, display is set in support and its two ends are supported on boss, first optical lens is set on support and located below display, there is gap between first optical lens and display to form heat dissipation cavity, the middle section part of the two inner side walls in the width direction of support is equipped with notch, and notch is communicated with heat dissipation cavity. Its simple structure, easy assembly, good heat dissipation, good waterproof fog performance, better guarantee service life and imaging effect, can greatly improve the experience of user.

Description

Technical Field

[0001] This utility model belongs to the field of XR display technology, specifically relating to a near-eye display module and wearable device with good waterproof and fog-proof performance. Background Technology

[0002] Extended reality (AR) is a rapidly emerging type of wearable device. It not only functions as a virtual screen to display daily information in real time or as a viewing platform, but also vividly combines the virtual world with real-world scenes, providing users with entirely new experiences and displaying virtual information such as text, images, videos, and 3D models. However, existing AR or VR glasses are prone to condensation when exposed to cold air or significant temperature changes, causing water vapor to form in the cavity between the display and the nearby lens. This significantly affects image quality and leads to poor user satisfaction. Utility Model Content

[0003] The purpose of this utility model is to provide a near-eye display module with good waterproof and fog-proof performance. It has a simple structure, small size, light weight, convenient assembly, low manufacturing cost, and good waterproof and fog-proof performance.

[0004] The purpose of this utility model is to provide a wearable device that is lightweight, easy to wear, and provides a good user experience.

[0005] The embodiments of this utility model are implemented as follows: This utility model provides a near-eye display module with good waterproof and fog-proof performance, including a module frame, a display, a bracket, a first optical lens, a second optical lens, and a third optical lens. The third optical lens is disposed at the front end of the module frame, the second optical lens is disposed at the rear end of the module frame, and the bracket is disposed at the upper end of the module frame. The bracket has a rectangular frame structure, and protrusions are provided on the inner sidewalls at both ends of the bracket along its length. The display is disposed inside the bracket and its two ends are supported on the protrusions. The first optical lens is disposed on the bracket and located below the display. There is a gap between the first optical lens and the display to form a heat dissipation cavity. A notch is provided in the middle section of the two inner sidewalls along the width of the bracket, and the notch communicates with the heat dissipation cavity.

[0006] Furthermore, the upper end of the module frame has a mounting cavity, and the bracket is disposed within the mounting cavity.

[0007] Furthermore, the mounting cavity of the module frame is provided with a vent hole on its side wall, the vent hole connecting the mounting cavity to the outside, and a waterproof and breathable membrane is provided at the vent hole.

[0008] Furthermore, a positioning post is provided at one end of the mounting cavity, the positioning post is vertically arranged, and a fixing part is provided at one end of the bracket, the fixing part is provided with a positioning hole, and the positioning post passes through the positioning hole.

[0009] Furthermore, the number of protrusions at each end of the bracket is at least two.

[0010] Furthermore, all the protrusions inside the bracket are at the same horizontal height.

[0011] Furthermore, the length of the notch is smaller than the length of the side of the first optical lens.

[0012] Furthermore, the first optical lens, the second optical lens, and the third optical lens form a triangular cavity, and the second optical lens is inclined forward from top to bottom.

[0013] An embodiment of this utility model also provides a wearable device, including a wearable component, a sealing cover, and the aforementioned near-eye display module. The near-eye display module is arranged in two sets side by side. The sealing cover covers the upper ends of the two sets of near-eye display modules. The wearable component is connected to the sealing cover or the near-eye display module.

[0014] The beneficial effects of this utility model are as follows: The near-eye display module with good waterproof and fog-proof performance provided by this utility model has a simple structure, small size, light weight, convenient assembly, low manufacturing cost, good heat dissipation and waterproof and fog-proof performance, and better guarantees service life and imaging effect.

[0015] The wearable device provided by this utility model has a simple manufacturing process, low cost, light weight, and is easy to wear, greatly improving the user's wearing experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the near-eye display module with good waterproof and fog-proof performance according to Embodiment 1 of this utility model; Figure 2 A cross-sectional view of the near-eye display module; Figure 3 This is a schematic diagram of the support structure; Figure 4This is a schematic diagram of the structure of the wearable device according to Embodiment 2 of this utility model; In the diagram: 10-Near-eye display module; 1-Module frame; 11-Mounting cavity; 12-Positioning post; 13-Ventilation hole; 14-Waterproof and breathable membrane; 2-Display; 3-Bracket; 31-Boss; 32-Fixing part; 33-Positioning hole; 34-Notch; 35-Heat dissipation cavity; 4-First optical lens; 5-Second optical lens; 6-Third optical lens; 7-Sealing cover. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0019] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1

[0023] refer to Figure 1 and2 As shown, Embodiment 1 of this utility model provides a near-eye display module 10 with good waterproof and fog-proof performance, including a module frame 1, a display 2, a bracket 3, a first optical lens 4, a second optical lens 5, and a third optical lens 6.

[0024] The cross-section of the module frame 1 is approximately a right-angled trapezoid. The upper end of the module frame 1 has a mounting cavity 11, and the lower end is a U-shaped frame. The third optical lens 6 is disposed on the front side of the U-shaped frame, and the second optical lens 5 is disposed on the rear side of the U-shaped frame. The second optical lens 5 and the third optical lens 6 can be glued to the module frame 1.

[0025] A positioning post 12 is provided at one end of the mounting cavity 11. The positioning post 12 is vertically arranged and there are at least two positioning posts 12. In this embodiment, there are three positioning posts 12, which are distributed in a triangle.

[0026] refer to Figure 3 As shown, the bracket 3 is a rectangular frame structure. Bosses 31 are provided on the inner walls of both ends along the length of the bracket 3, with at least two bosses 31 at each end. All bosses 31 within the bracket 3 are at the same horizontal height. A fixing part 32 is provided at one end of the bracket 3, and a positioning hole 33 is provided on the fixing part 32. The bracket 3 is placed inside the mounting cavity 11, and a positioning post 12 passes through the positioning hole 33 to position the bracket 3, facilitating quick installation. The display 2 is placed inside the bracket 3, with both ends supported on the bosses 31. The first optical lens 4 is placed on the bracket 3 and located below the display 2. A gap exists between the first optical lens 4 and the display 2, forming a heat dissipation cavity 35. A notch 34 is provided in the middle section of the two inner walls along the width of the bracket 3. The length of the notch 34 is smaller than the length of the side of the first optical lens 4. The notch 34 communicates with the heat dissipation cavity 35, ensuring smooth airflow between the first optical lens 4 and the display 2, improving heat dissipation, and reducing the formation of water vapor inside the heat dissipation cavity 35 when exposed to cold air.

[0027] After assembly, the first optical lens 4, the second optical lens 5, and the third optical lens 6 form a triangular cavity, with the second optical lens 5 tilted forward from top to bottom. In use, the second optical lens 5 is closer to the human eye.

[0028] The mounting cavity 11 of the module frame 1 is provided with a vent hole 13 on the rear side wall. Of course, the vent hole 13 can also be provided on the front side wall or the left and right side walls of the mounting cavity 11. The vent hole 13 connects the mounting cavity 11 with the outside. A waterproof and breathable membrane 14 is provided at the vent hole 13, which allows air to pass through when water is released, ensuring the circulation of air inside the mounting cavity 11 with the outside.

[0029] In this embodiment, the display 2 mainly serves to emit light. The display 2 can display 2D or 3D images or videos, and the display 2 can be an OLED display, LCD display, LCOS display, micro-LED display, or mini-LED display, etc.

[0030] Optical lenses can be made of glass or optical plastics.

[0031] The module frame 1 can be made of plastic or metal. Example 2

[0032] refer to Figure 4 As shown, Embodiment 2 of this utility model provides a wearable device, including a wearable component, a sealing cover 7, and a near-eye display module 10.

[0033] It should be noted that the near-eye display module 10 in this embodiment can be the near-eye display module 10 in embodiment 1. Its structure, working principle and technical effects are as described in the corresponding content of embodiment 1, and will not be repeated here.

[0034] There are two sets of near-eye display modules 10 arranged side by side. The sealing cover 7 covers the upper end of the two sets of near-eye display modules 10, sealing the mounting cavity 11 to prevent the display 2 from being exposed to the outside, reducing the occurrence of physical damage and greatly improving the service life of the display 2. The sealing cover 7 is fixedly connected to the module frame 1 by screws, and the wearable part is connected to the sealing cover 7 or the near-eye display module 10.

[0035] Wearable components can be helmets or eyeglass frames, making them convenient for people to wear on their heads. Wearable devices also include control units and storage units; the control unit controls the device, and the storage unit stores images, videos, etc.

[0036] It should be noted that this application does not limit the optical display system to wearable devices. The optical display system can also be used on other devices. In one possible application scenario, it can also be integrated into desktop optical display devices and automotive optical display devices. Its virtual image distance is relatively far, which can realize eye protection function and improve the viewing experience.

[0037] This utility model is not limited to the optional embodiments described above, and anyone can derive other various forms of products under the guidance of this utility model. The specific embodiments described above should not be construed as limiting the scope of protection of this utility model. The scope of protection of this utility model shall be determined by the claims, and the description can be used to interpret the claims.

Claims

1. A near-eye display module with good waterproof and fog-proof performance, characterized in that: The device includes a module frame, a display, a bracket, a first optical lens, a second optical lens, and a third optical lens. The third optical lens is located at the front end of the module frame, the second optical lens is located at the rear end of the module frame, and the bracket is located at the upper end of the module frame. The bracket has a rectangular frame structure, with protrusions on the inner sidewalls at both ends along its length. The display is located inside the bracket and its two ends are supported on the protrusions. The first optical lens is located on the bracket and below the display. A gap exists between the first optical lens and the display to form a heat dissipation cavity. A notch is provided in the middle section of the two inner sidewalls along the width of the bracket, and the notch communicates with the heat dissipation cavity.

2. The near-eye display module with good waterproof and fog-resistant performance according to claim 1, characterized in that: The upper end of the module frame has a mounting cavity, and the bracket is disposed in the mounting cavity.

3. The near-eye display module with good waterproof and fog-resistant performance according to claim 2, characterized in that: The mounting cavity of the module frame is provided with a vent hole on its side wall, the vent hole connecting the mounting cavity to the outside, and a waterproof and breathable membrane is provided at the vent hole.

4. The near-eye display module with good waterproof and fog-resistant performance according to claim 2, characterized in that: One end of the mounting cavity is provided with a positioning post, which is vertically arranged. One end of the bracket is provided with a fixing part, which has a positioning hole, through which the positioning post passes.

5. The near-eye display module with good waterproof and fog-resistant performance according to claim 1, characterized in that: The number of protrusions at each end of the bracket is at least two.

6. The near-eye display module with good waterproof and fog-resistant performance according to claim 5, characterized in that: All the protrusions inside the bracket are at the same horizontal height.

7. The near-eye display module with good waterproof and fog-resistant performance according to claim 1, characterized in that: The length of the notch is less than the length of the side of the first optical lens.

8. The near-eye display module with good waterproof and fog-resistant performance according to claim 1, characterized in that: The first optical lens, the second optical lens, and the third optical lens form a triangular cavity, and the second optical lens is inclined forward from top to bottom.

9. A wearable device, characterized in that: The device includes a wearable component, a sealing cap, and a near-eye display module as described in any one of claims 1-8, wherein there are two sets of near-eye display modules arranged side by side, the sealing cap covers the upper ends of the two sets of near-eye display modules, and the wearable component is connected to the sealing cap or the near-eye display module.

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