AR glasses screen and AR glasses

Abstract

The utility model relates to the technical field of AR glasses, and provides an AR glasses screen and AR glasses. The AR glasses screen comprises an optical waveguide display screen and a photochromic film. The optical waveguide display screen comprises a display layer, at least the outer side face of the display layer is provided with a protective layer, and an air layer is arranged between the display layer and the protective layer. The photochromic film is arranged on the side, away from the display layer, of the protective layer on the outer side face. According to the utility model, the problem that the cost, the volume and the weight of the AR glasses are increased due to the fact that shading lenses are additionally arranged through a magnetic attraction structure or a buckle structure in order to adapt to the use of the AR glasses under the strong light in the prior art is solved, and the purpose of more conveniently solving the use of the AR glasses under the strong light and improving the utilization rate of the AR glasses under the strong light is achieved. Meanwhile, the AR glasses screen and the AR glasses have little influence on the cost, the size and the weight.

Description

Technical Field

[0001] This utility model relates to the field of AR glasses technology, and in particular to an AR glasses screen and AR glasses. Background Technology

[0002] AR glasses screens are used on the display lenses of smart glasses for augmented reality and virtual reality, and need to display content on a transparent screen. However, due to the limitations of current optical display technology and the brightness of light sources, the AR glasses screen is often too dim to see clearly in strong sunlight, reducing the AR glasses experience and even rendering them unusable in bright sunlight. Therefore, AR glasses currently require shielding against strong sunlight when used outdoors.

[0003] The existing solution involves adding a physical light-blocking lens to the AR glasses screen, which can be detachably attached to the outside of the screen using magnetic attachment, clips, or assembly. It is installed in bright outdoor conditions to block strong external light; and removed indoors when there is no strong light, thus reducing weight and improving visibility of the surrounding environment.

[0004] However, the above solutions would add an extra component to the AR glasses screen, and the AR glasses would also need to have a magnetic or snap-fit ​​structure, which would increase the product cost, size, and weight. Utility Model Content

[0005] This invention provides an AR glasses screen and AR glasses to address the shortcomings of existing AR glasses that require additional light-blocking lenses via magnetic or snap-fit ​​structures to adapt to use in strong light, thereby increasing the cost, size, and weight of AR glasses. The invention provides an AR glasses screen and AR glasses that can more conveniently solve the problem of using AR glasses in strong light, while having little impact on cost, size, and weight.

[0006] This utility model provides an AR glasses screen, including:

[0007] An optical waveguide display screen includes a display layer, a protective layer provided on at least the outer side of the display layer, and an air layer provided between the display layer and the protective layer;

[0008] A photochromic film, wherein the protective layer on the outer side faces away from the display layer.

[0009] According to the present invention, an AR glasses screen is provided, wherein an adhesive layer is provided between the edge portion of the display layer and the air layer.

[0010] According to the present invention, an AR glasses screen is provided with an explosion-proof film on the side of the photochromic film facing away from the air layer.

[0011] According to the AR glasses screen provided by the utility model, in the case that the protective layer is arranged on the inner side and the outer side of the display layer, the side, away from the display layer, of the protective layer arranged on the inner side of the display layer is provided with the explosion-proof film.

[0012] According to the AR glasses screen provided by the utility model, in the case that the protective layer is arranged on the inner side and the outer side of the display layer, the side, away from the display layer, of the protective layer arranged on the inner side of the display layer is provided with the explosion-proof film.

[0013] According to the AR glasses screen provided by the utility model, the side, away from the protective layer, of the photochromic film is provided with a hardening film.

[0014] According to the AR glasses screen provided by the utility model, the side, away from the protective layer, of the photochromic film is provided with a hydrophobic film.

[0015] According to the AR glasses screen provided by the utility model, the side, away from the protective layer, of the photochromic film is provided with an anti-reflection film.

[0016] According to the AR glasses screen provided by the utility model, the AR glasses screen comprises a single-vision glasses screen and a binocular glasses screen.

[0017] The utility model also provides an AR glasses, comprising:

[0018] The AR glasses screen as claimed in any one of the preceding embodiments;

[0019] The AR glasses frame is detachably arranged on the AR glasses frame.

[0020] The AR glasses screen and the AR glasses provided by the utility model have the photochromic film arranged on the light waveguide display screen, the use of the additional physical light shielding lens is avoided, the number of parts of the AR glasses screen is reduced, and no additional connecting structure such as a magnetic attraction or buckle structure needs to be added, so that the cost, volume and weight of the product are reduced. Therefore, the scheme not only improves the flexibility and convenience of the AR glasses under different illumination conditions, but also improves the overall experience of the user. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0022] Figure 1 is one of the cross-sectional structures of the AR glasses screen provided by the utility model;

[0023] Figure 2 is the cross-sectional structure two of the AR glasses screen provided by the utility model;

[0024] Figure 3 is the cross-sectional structure three of the AR glasses screen provided by the utility model;

[0025] Figure 4 is the cross-sectional structure four of the AR glasses screen provided by the utility model;

[0026] Figure 5 is one of the structures of the AR glasses provided by the utility model;

[0027] Figure 6 is the second structure of the AR glasses provided by the utility model.

[0028] Signs:

[0029] 100: AR glasses screen; 110: light waveguide display screen; 111: display layer; 112: adhesive layer; 113: air layer; 114: protective layer; 120: photochromic film; 130: explosion-proof film;

[0030] 200: AR glasses frame. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme in the utility model will be described clearly and completely below in combination with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] The structure and working principle of the utility model will be described below in combination with Figures 1-6

[0033] Referring to Figure 1 and Figure 2 , the AR glasses screen provided by the utility model comprises a light waveguide display screen 110 and a photochromic film 120. Wherein, the light waveguide display screen 110 comprises a display layer 111, at least the outer side surface of the display layer 111 is provided with a protective layer 114, and an air layer 113 is arranged between the display layer 111 and the protective layer 114; the photochromic film 120 is arranged on the side of the protective layer 114 on the outer side surface, which is away from the display layer 111. It should be noted that the outer side surface of the photochromic film 120 refers to the side which is away from the human eyes in the wearing state, and the inner side surface of the photochromic film 120 refers to the side which is close to the human eyes in the wearing state.

[0034] ​The photochromic film 120 can achieve automatic adjustment function based on its material properties and interaction with ambient light. The photochromic film 120 is composed of materials containing light-sensitive molecules that undergo reversible color change or structural change under different light conditions, thereby adjusting the light transmittance of the film. When the external light is strong, especially when the ultraviolet and blue light components are high, the light-sensitive molecules in the photochromic film 120 are activated, causing the molecular structure to change, deepening the color of the film and reducing the light transmittance. On the contrary, in low light conditions, the light-sensitive molecules return to the initial state, and the film maintains high transparency, allowing more light to pass through. This response mechanism enables the photochromic film 120 to automatically adjust its light transmittance according to the external light conditions without additional human intervention.

[0035] In the above structure, the optical waveguide display screen 110 is used to generate and transmit virtual images to the user's field of view, while the photochromic film 120 automatically adjusts its light transmittance according to the external light conditions. When the external light is strong, the photochromic film 120 darkens to block strong light, reducing the impact of the external environment on the display content, ensuring that the user can clearly see the information on the display layer 111; when the external light is weak, the photochromic film 120 maintains high transparency, allowing the user to see the external environment through the protective layer 114. Through this design, the use of additional physical sunshade lenses is avoided, reducing the number of parts of the AR glasses screen, and without the need to add other additional connection structures such as magnetic attraction or buckle structure, reducing the cost, volume and weight of the product. Therefore, this scheme not only improves the flexibility and convenience of AR glasses in different light conditions, but also improves the overall experience of users.

[0036] In some possible embodiments, the thickness of the display layer 111 is 0.2 millimeters to 1 millimeter. This thickness range can ensure that the display layer 111 has sufficient strength to support image generation and transmission functions, while maintaining appropriate thinness characteristics and reducing the burden on the wearer. This thickness helps to optimize the propagation path of light within the display layer, improve image quality, and provide stable display effects in different use scenarios.

[0037] The thickness of the air layer 113 is 0.05 millimeters to 0.5 millimeters. This thickness range can effectively reduce internal reflection and interference without affecting the overall structural strength, improving optical efficiency. A thinner air layer helps to reduce the overall volume of the present application, making the AR glasses more compact and comfortable. In addition, this thickness range can also maintain good optical performance, ensuring image clarity and color accuracy.

[0038] The thickness of the protective layer 114 is 0.2 millimeters to 1 millimeter. This thickness range can provide the necessary physical protection against damage to the display layer 111 from the external environment, without significantly increasing the weight or thickness of the present application. The appropriate thickness enhances the isolation effect between the display layer 111 and the external environment, thereby prolonging the service life of the present application. At the same time, this thickness range helps to maintain the solidity of the present application, ensuring durability in daily use.

[0039] The thickness of the photochromic film 120 is between 0.1 micrometer and 100 micrometers, ensuring that the film layer has sufficient light response capability to effectively adjust the light transmittance under different light conditions. A thinner design helps to maintain the portability of the overall present application, avoiding the impact on the comfort of the wearer due to additional thickness. Specifically, when the film layer thickness is within this range, the photochromic material can quickly and uniformly respond to changes in external light, thereby ensuring a rapid photochromic reaction and good visual effect.

[0040] In some possible embodiments, the material of the protective layer 114 can be selected from glass or resin. When the protective layer 114 uses glass material, the glass has high transparency, which can ensure efficient light transmission and reduce light loss, thereby providing clear visual effect. At the same time, the glass material has excellent wear resistance and scratch resistance, which can effectively prevent scratches and wear and tear in daily use, thereby prolonging the service life of the present application. In addition, glass also has good thermal stability and chemical stability, which is not easy to deform or damage in high temperature environment, and has high resistance to most chemicals, maintaining long-term optical performance.

[0041] On the other hand, when the protective layer 114 uses resin material, the resin material has lightweight characteristics, which helps to reduce the weight of the overall present application and improve the wearing comfort, which is particularly important for AR glasses that are worn for a long time. Resin material also shows good impact resistance, which can better protect the internal components when subjected to accidental impact or falling, reducing the risk of damage. Resin material is easy to shape and process, and can be made into various shapes and sizes according to design requirements, which is convenient for manufacturing protective layers with complex structures and can achieve higher production efficiency. In addition, the cost of resin material is generally lower, which helps to reduce production costs and makes the product more market competitive.

[0042] By selecting appropriate materials as the protective layer 114, different user needs can be met while ensuring optical performance. Whether glass or resin material is used, effective protection can be provided for AR glasses within their respective advantages, ensuring the reliability and durability of the utility model in various environments. This design not only improves the overall performance of the utility model, but also enhances user experience, so that AR glasses can provide stable and high-quality visual effects under various lighting conditions. The selection of the protective layer 114 directly affects the protection ability of the utility model and the user experience, so the characteristics of the material need to be considered comprehensively in the design process to achieve the best effect.

[0043] With reference to Figure 1 Or Figure 2 In some embodiments of the utility model, a glue layer 112 is provided between the edge parts of the display layer 111 and the air layer 113.

[0044] In the above structure, the main role of the glue layer 112 is to firmly combine the display layer 111 and the air layer 113 together, ensuring the stability and sealing between the layers, preventing the influence of external environmental factors such as humidity, dust, etc. on the internal components. In addition, the glue layer 112 can also provide a certain buffering effect, reducing the damage of external impact to the display layer 111, thereby prolonging the service life of the utility model.

[0045] The glue layer 112 can adopt various material types, and the specific material also depends on the actual application requirements and performance requirements. Among them, it can be optical clear adhesive (OCA), which has high transparency and good bonding strength, and can realize reliable interlayer bonding without affecting the optical performance. In addition, it can also be ultraviolet curing adhesive (UV adhesive), which is quickly cured by ultraviolet irradiation, can adapt to complex shapes and structures, and at the same time provides excellent bonding effect.

[0046] By reasonably selecting the material of the glue layer 112, the firm combination between the layers can be ensured while meeting different process requirements and use environments. Whether optical clear adhesive or ultraviolet curing adhesive is used, effective protection and support can be provided for AR glasses within their respective advantages. This design not only improves the overall performance of the utility model, but also enhances user experience, so that AR glasses can provide stable and high-quality visual effects under various lighting conditions. The selection of the glue layer 112 directly affects the durability and reliability of the utility model, so the characteristics of the material need to be considered comprehensively in the design process to achieve the best effect. At the same time, the design of the glue layer 112 also needs to consider the feasibility of production and cost control to ensure the market competitiveness of the final product.

[0047] With reference to Figure 3 And Figure 4In some embodiments of the present application, the photochromic film 120 has an anti-explosion film 130 on the side facing away from the air layer 113. In the case where the display layer 111 has a protective layer 114 on both the inner side and the outer side, the protective layer 114 on the inner side of the display layer 111 also has an anti-explosion film 130 on the side facing away from the display layer 111. In the case where the display layer 111 has a protective layer 114 only on the outer side, the inner side of the display layer 111 has an anti-explosion film 130. The main function of the anti-explosion film 130 is to enhance the safety and durability of the present application, preventing damage to the human eye caused by rupture due to external impact or internal pressure changes.

[0048] In some possible embodiments, the anti-explosion film 130 can contain multiple material types, which can be selected according to actual conditions. One is a polyethylene terephthalate (PET) film, which has good impact resistance and transparency, and can provide effective protection without affecting optical performance. Another option is a polycarbonate (PC) film, which has higher strength and impact resistance, suitable for application scenarios that require stronger protection. In addition, composite material films can also be used, which are composed of multiple layers of different materials, combining the advantages of multiple materials to provide more comprehensive protection performance, such as impact resistance, scratch resistance, and chemical corrosion resistance.

[0049] By reasonably selecting the material of the anti-explosion film 130, different process requirements and use environments can be met while ensuring the safety and durability of the present application. Whether using a PET film, a PC film, or a composite material film, each can provide effective protection and support for AR glasses within their respective advantages. This design not only improves the overall performance of the present application, but also enhances user experience, allowing AR glasses to maintain stable and reliable working conditions under various use conditions.

[0050] In addition, the design of the anti-explosion film 130 also needs to consider its compatibility with adjacent components to ensure tight integration and seamless cooperation between layers. For example, the bonding between the anti-explosion film 130 and the photochromic film 120 and the protective layer 114 should be firm and not affect optical transparency, thereby ensuring image quality and visual effects. At the same time, the selection of the anti-explosion film 130 also needs to consider the feasibility of production and cost control to ensure the market competitiveness of the final product. Through such design, the anti-explosion film 130 can effectively improve the overall protection capability and service life of AR glasses, providing users with more reliable and durable use experience.

[0051] In some possible embodiments, the photochromic film 120 has a hardening film on the side facing away from the protective layer 114.

[0052] The material made of the hardening film can include various types, which can be selected according to actual needs and performance requirements. One option is hard acrylic resin, which has good transparency and wear resistance, and can provide effective protection without affecting optical performance. Another option is a silicon dioxide (SiO2) coating, which has excellent hardness and chemical corrosion resistance, suitable for applications that require higher protection capabilities. In addition, polyurethane (PU) coating can also be used, which combines good flexibility and high strength, providing comprehensive surface protection and being suitable for complex shapes and structures.

[0053] By reasonably selecting the material of the hardening film, the embodiment can ensure the wear resistance and scratch resistance of the surface of the AR glasses while meeting different process requirements and use environments. Whether using hard acrylic resin, silicon dioxide coating or polyurethane coating, each can provide effective protection and support for AR glasses within their respective advantages. This design not only improves the overall performance of the utility model, but also enhances user experience, so that AR glasses can maintain stable and reliable working state under various use conditions.

[0054] In addition, the design of the hardening film also needs to consider its compatibility with adjacent components to ensure tight integration and seamless cooperation between layers. For example, the bonding between the hardening film and the photochromic film 120 should be firm and not affect optical transparency, so as to ensure image quality and visual effect. At the same time, the selection of the hardening film also needs to consider the feasibility of production and cost control to ensure the market competitiveness of the final product.

[0055] In some possible embodiments, the photochromic film 120 is provided with a hydrophobic film on the side away from the protective layer 114.

[0056] The material made of the hydrophobic film can include various types, which depends on actual application needs and performance requirements. One option for the material of the hydrophobic film is a fluoride coating, which has excellent hydrophobicity and low surface energy, effectively preventing water and oil from adhering to the surface. Another option is a siloxane coating, which not only has good hydrophobicity, but also has certain flexibility and durability, suitable for complex shapes and structures. In addition, a nano titanium dioxide (TiO2) coating can also be used, which has hydrophobicity and self-cleaning function, and can decompose organic pollutants under light conditions, further improving the cleaning effect of the surface.

[0057] This embodiment, through the rational selection of hydrophobic membrane materials, can meet different process requirements and usage environments while ensuring the surface waterproof performance of the present invention. Whether using fluoride coatings, siloxane coatings, or nano-titanium dioxide coatings, each can provide effective protection and support for AR glasses within its respective advantages. This design approach not only improves the overall performance of the present invention but also enhances the user experience, enabling the AR glasses to maintain a stable and reliable working state under various usage conditions.

[0058] Furthermore, the design of the hydrophobic film must also consider its compatibility with adjacent components, ensuring a tight bond and seamless collaboration between layers. For example, the adhesion between the hydrophobic film and the photochromic film 120 should be strong and not affect optical transparency, thereby ensuring image quality and visual effects. At the same time, the selection of the hydrophobic film also needs to comprehensively consider the feasibility of manufacturing and cost control to ensure the market competitiveness of the final product.

[0059] In some possible embodiments, the photochromic film 120 has an antireflective film on the side opposite to the protective layer 114.

[0060] Antireflective coatings can be made from a variety of materials, selected based on application requirements and performance specifications. One option is a single-layer or multi-layer antireflective coating (AR coating), which reduces reflection within a specific wavelength range by precisely controlling the material's refractive index and thickness. Another option is a magnesium fluoride (MgF2) coating, which has a low refractive index, is suitable for a wide visible spectrum, and effectively reduces reflection while increasing light transmittance. Additionally, multilayer dielectric films can be used, composed of alternating stacks of materials with different refractive indices, achieving highly efficient antireflective effects over a wider wavelength range and suitable for complex optical systems.

[0061] In this embodiment, by rationally selecting the material of the antireflective coating, the high light transmittance of the surface of this invention can be ensured while meeting different process requirements and usage environments. Whether using a single-layer or multi-layer antireflective coating, a magnesium fluoride coating, or a multi-layer dielectric film, each can provide effective optical performance enhancement for AR glasses within its respective advantages. This design approach not only improves the overall optical performance of this invention but also enhances the user experience, enabling the AR glasses to maintain a stable and reliable working state under various lighting conditions.

[0062] Furthermore, the design of the antireflective coating must also consider its compatibility with adjacent components, ensuring a tight bond and seamless collaboration between layers. For example, the adhesion between the antireflective coating and the photochromic film 120 should be strong and not affect optical transparency, thereby ensuring image quality and visual effects. At the same time, the selection of the antireflective coating also needs to comprehensively consider the feasibility of manufacturing and cost control to ensure the market competitiveness of the final product.

[0063] With reference to Figure 5 and Figure 6 In some embodiments of the present application, the AR glasses screen comprises a single glasses screen and a binocular glasses screen.

[0064] With reference to Figure 5 and Figure 6 The present application further provides an AR glasses, comprising the AR glasses screen 100 and the AR glasses frame 200 according to any one of the above embodiments, and the AR glasses screen 100 is detachably arranged on the AR glasses frame 200 by means of gluing or buckling.

[0065] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An AR glasses screen, characterized in that, include: The optical waveguide display screen (110) includes a display layer (111), at least the outer side of the display layer (111) is provided with a protective layer (114), and an air layer (113) is provided between the display layer (111) and the protective layer (114). The photochromic film (120) has a protective layer (114) on its outer side facing away from the display layer (111).

2. The AR glasses screen according to claim 1, characterized in that, An adhesive layer (112) is provided between the edges of the display layer (111) and the air layer (113).

3. The AR glasses screen according to claim 2, characterized in that, The photochromic film (120) has an explosion-proof film (130) on the side opposite to the air layer (113).

4. The AR glasses screen according to claim 3, characterized in that, When the protective layer (114) is provided on both the inner and outer sides of the display layer (111), the explosion-proof film (130) is provided on the side of the protective layer (114) located on the inner side of the display layer (111) away from the display layer (111).

5. The AR glasses screen according to claim 3, characterized in that, When the protective layer (114) is provided only on the outer side of the display layer (111), the explosion-proof film (130) is provided on the inner side of the display layer (111).

6. The AR glasses screen according to claim 1 or 2, characterized in that, The photochromic film (120) has a hardened film on the side opposite to the protective layer (114).

7. The AR glasses screen according to claim 1 or 2, characterized in that, The photochromic film (120) has a hydrophobic membrane on the side opposite to the protective layer (114).

8. The AR glasses screen according to claim 1 or 2, characterized in that, The photochromic film (120) has an anti-reflection film on the side opposite to the protective layer (114).

9. The AR glasses screen according to any one of claims 1-5, characterized in that, The AR glasses screen includes a monocular screen and a binocular screen.

10. An AR glasses, characterized in that, include: AR glasses screen (100) as described in any one of claims 1-9; AR glasses frame (200), detachably mounted on the AR glasses frame (200).

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