Anti-dazzling electronic rearview mirror

Abstract

The utility model relates to the technical field of anti-dazzling rearview mirrors, in particular to an anti-dazzling electronic rearview mirror which comprises a shell, a reflective glass panel and a sensing control unit. The reflective glass panel comprises a base body, a blue film anti-dazzle layer and an electric control anti-dazzle layer which are arranged on two opposite surfaces of the base body, and a reflective layer which is arranged on one side, deviating from the base body, of the electric control anti-dazzle layer; a first protective layer is arranged on the outer side face of the blue film anti-dazzle layer, and a second protective layer is arranged on the outer side face of the reflecting layer. The electric control anti-dazzle layer is electrically connected with the sensing control unit. A basic static anti-dazzle function is provided through the blue film anti-dazzle layer, and the electric control anti-dazzle layer performs dynamic adjustment on strong light, so that the intensity of reflected light is further reduced, the stimulation of dazzle to the vision of a driver is reduced, the driving experience is optimized, and the driving safety is enhanced; the anti-dazzle blue film serves as the outer layer, initial reflected light is reduced, meanwhile, the electric control anti-dazzle layer is more efficient during adjustment so as to adapt to different illumination conditions, and the visual experience of a driver is further optimized.

Description

Technical Field

[0001] This utility model relates to the field of rearview mirror anti-glare technology, and in particular to an anti-glare electronic rearview mirror. Background Technology

[0002] Rearview mirrors expand the driver's field of vision, making it easier for them to understand the surrounding environment and thus improving driving safety. However, when driving at night, the high beams of vehicles behind can strongly irritate the driver's eyes through the rearview mirror, causing glare and seriously interfering with normal driving.

[0003] In related technologies, anti-glare blue film is used to reduce glare. Although anti-glare blue film can reduce some reflected and scattered light, it cannot completely eliminate glare in strong light environments, such as when the high beams of oncoming vehicles are shining at night. The reflected light may still interfere with vision, affect the driving experience, and easily cause safety accidents. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an anti-glare electronic rearview mirror, which effectively solves the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: an anti-glare electronic rearview mirror, comprising: a housing, a reflective glass panel, and a sensing and control unit;

[0006] The reflective glass panel includes a substrate, a blue film anti-glare layer and an electronically controlled anti-glare layer disposed on two opposite surfaces of the substrate, and a reflective layer disposed on the side of the electronically controlled anti-glare layer away from the substrate.

[0007] A first protective layer is provided on the outer side of the blue anti-glare layer, and a second protective layer is provided on the outer side of the reflective layer;

[0008] The electrically controlled anti-glare layer is electrically connected to the sensing and control unit.

[0009] Furthermore, the electronically controlled anti-glare layer includes a liquid crystal layer and transparent electrode layers disposed on both sides of the liquid crystal layer.

[0010] Furthermore, an alignment layer is provided between the liquid crystal layer and the transparent electrode layer.

[0011] Furthermore, the material of the transparent electrode layer is indium tin oxide.

[0012] Furthermore, a polarizing layer is provided between the substrate and the electronically controlled anti-glare layer.

[0013] Furthermore, the first protective layer employs a nano-coating.

[0014] Furthermore, the sensing and control unit includes a power supply module, a voltage control module electrically connected to the power supply module, and a light intensity sensor module electrically connected to the voltage control module;

[0015] The voltage control module is electrically connected to the electronically controlled anti-glare layer and is used to control the driving voltage applied to the electronically controlled anti-glare layer.

[0016] Furthermore, the substrate is a glass substrate.

[0017] Furthermore, the second protective layer is formed by coating transparent silicone.

[0018] Furthermore, the outer edge of the reflective glass panel is provided with a protective frame.

[0019] The beneficial effects of this utility model are as follows: This utility model provides basic static anti-glare function through the blue film anti-glare layer, while the electronically controlled anti-glare layer dynamically adjusts for strong light, further reducing the intensity of reflected light, reducing the stimulation of glare on the driver's vision, and improving driving safety; moreover, the anti-glare blue film, as the outer layer, reduces the initial reflected light, making the electronically controlled anti-glare layer more efficient in dynamically adjusting transparency, thereby achieving higher light transmittance changes to adapt to different lighting conditions, further optimizing the driver's visual experience. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the anti-glare electronic rearview mirror in an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the reflective glass panel in an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the electrically controlled anti-glare layer in an embodiment of this utility model.

[0024] Reference numerals: 1. Housing; 2. Reflective glass panel; 21. Substrate; 22. Blue film anti-glare layer; 23. Electro-controlled anti-glare layer; 231. Liquid crystal layer; 232. Transparent electrode layer; 233. Alignment layer; 24. Reflective layer; 25. First protective layer; 26. Second protective layer; 27. Polarizing layer; 3. Protective frame. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] like Figures 1 to 3 The anti-glare electronic rearview mirror shown includes: a housing 1, a reflective glass panel 2, and a sensing and control unit; the reflective glass panel 2 includes a substrate 21, a blue film anti-glare layer 22 and an electrically controlled anti-glare layer 23 disposed on two opposite surfaces of the substrate 21, and a reflective layer 24 disposed on the side of the electrically controlled anti-glare layer 23 away from the substrate 21; a first protective layer 25 is provided on the outer side of the blue film anti-glare layer 22, and a second protective layer 26 is provided on the outer side of the reflective layer 24; the electrically controlled anti-glare layer 23 is electrically connected to the sensing and control unit.

[0029] During installation, the reflective glass panel 2 is positioned on one side of the reflective layer 24, facing the rearview mirror housing 1, while the reflective layer 24 faces inwards from the housing 1. Light entering from the outside passes sequentially through the blue film anti-glare layer 22, the substrate 21, and the electrically controlled anti-glare layer 23, finally illuminating the reflective layer 24 and being reflected back. The sensing unit detects the light intensity; when the light intensity exceeds a set threshold, it controls the electrically controlled anti-glare layer 23 to be energized, thereby achieving the anti-glare function.

[0030] This invention provides basic static anti-glare function through the blue anti-glare layer 22, while the electronically controlled anti-glare layer 23 dynamically adjusts for strong light, further reducing the intensity of reflected light, reducing the stimulation of glare on the driver's vision, and improving driving safety. Moreover, as the outer layer, the anti-glare blue film reduces the initial reflected light, making the electronically controlled anti-glare layer 23 more efficient in dynamically adjusting transparency, thereby achieving higher light transmittance changes to adapt to different lighting conditions and further optimizing the driver's visual experience.

[0031] Specifically, under nighttime high beam illumination: the electronically controlled anti-glare layer 23 quickly reduces the reflected intensity of the high beams, while the blue film anti-glare layer 22 further reduces residual glare, providing a clear field of vision. Under direct sunlight: in strong sunlight, the blue film anti-glare layer 22 uniformly reduces the intensity of reflected light, while the electronically controlled anti-glare layer 23 dynamically adjusts according to the light intensity to avoid overexposure. In complex lighting environments: in scenarios with frequent changes in lighting, such as tunnels and bridges, the electronically controlled anti-glare layer 23 can quickly adapt to changes in light, while the blue film anti-glare layer 22 provides stable basic protection.

[0032] In this invention, the electro-optical anti-glare layer 23 includes a liquid crystal layer 231 and transparent electrode layers 232 disposed on both sides of the liquid crystal layer 231. Utilizing the electro-optic effect of the liquid crystal material, the alignment of liquid crystal molecules is controlled by applying voltage to the transparent electrode layers 232, thereby altering the light transmittance and reflectance to achieve the anti-glare function. In strong light environments, the liquid crystal layer 231 can become darker, reducing the intensity of reflected light; in weak light environments, the liquid crystal layer 231 maintains high light transmittance, ensuring a clear field of vision. Preferably, the material of the transparent electrode layer 232 is indium tin oxide (ITO).

[0033] Based on the above scheme, an alignment layer 233 is provided between the liquid crystal layer 231 and the transparent electrode layer 232. The alignment layer 233 aligns the liquid crystal molecules in a specific direction through specific surface treatments (such as rubbing or photo-alignment). The ordered arrangement of liquid crystal molecules can reduce the response time of liquid crystal molecules under the action of an electric field and improve the response speed of the anti-glare function.

[0034] In the preferred embodiment of this utility model, a polarization layer 27 is provided between the substrate 21 and the electro-optical anti-glare layer 23, which can control the polarization direction of light and ensure that the light entering the liquid crystal layer 231 is polarized light, thereby achieving light modulation, improving display contrast, reducing external light interference, and enhancing the anti-glare effect of the liquid crystal layer 231.

[0035] In this invention, the first protective layer 25 is made of nano-coating, which effectively prevents water and oil stains from adhering and improves the self-cleaning ability and durability of the rearview mirror.

[0036] In a preferred embodiment of this invention, the sensing and control unit includes a power supply module, a voltage control module electrically connected to the power supply module, and a light intensity sensor module electrically connected to the voltage control module. The voltage control module is electrically connected to the electronically controlled anti-glare layer 23 and is used to control the driving voltage applied to the electronically controlled anti-glare layer 23. The light intensity sensor module detects the ambient light intensity in real time. When the light intensity exceeds a set threshold, the voltage control module adjusts the driving voltage applied to the electronically controlled anti-glare layer 23 according to the sensor signal, thereby controlling the brightness of the reflected light to reduce the glare of the rearview mirror and effectively improve the safety of the vehicle under strong sunlight or when driving at night.

[0037] In a preferred embodiment of this invention, the substrate 21 is made of glass. The glass substrate has excellent optical transparency, providing up to 92% visible light transmittance in a wide wavelength range from ultraviolet to mid-infrared, ensuring the image clarity of the rearview mirror.

[0038] In a preferred embodiment of this invention, the second protective layer 26 is formed by coating transparent silicone, which improves the protective performance of the reflective layer 24 and prevents scratches on the reflective layer 24 from affecting the reflected field of vision.

[0039] In this invention, a protective frame 3 is provided on the outer edge of the reflective glass panel 2. The protective frame 3 forms a sealed boundary to prevent moisture, dust, and other impurities from entering the internal structure of the glass panel. Preferably, the protective frame 3 is made of transparent acrylic material. Transparent acrylic material has a high transparency close to that of glass, with a light transmittance of over 92%, providing a clear view.

[0040] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An anti-dazzle electronic rearview mirror, characterized in that, The application relates to a reflective glass panel and a sensing control unit. The reflective glass panel (2) comprises a base body (21), a blue film anti-glare layer (22) and an electric control anti-glare layer (23) arranged on two opposite surfaces of the base body (21), and a reflection layer (24) arranged on the side of the electric control anti-glare layer (23) away from the base body (21). A first protective layer (25) is arranged on the outer side of the blue film anti-glare layer (22), and a second protective layer (26) is arranged on the outer side of the reflection layer (24). The electric control anti-glare layer (23) is electrically connected with the sensing control unit. The electric control anti-glare layer (23) comprises a liquid crystal layer (231) and transparent electrode layers (232) arranged on the two sides of the liquid crystal layer (231).

2. The anti-glare electronic rearview mirror of claim 1, wherein, An alignment layer (233) is arranged between the liquid crystal layer (231) and the transparent electrode layers (232).

3. The anti-glare electronic rearview mirror of claim 2, wherein, The material of the transparent electrode layers (232) is indium tin oxide.

4. The anti-glare electronic rearview mirror of claim 2, wherein, A polarization layer (27) is arranged between the base body (21) and the electric control anti-glare layer (23).

5. The anti-glare electronic rearview mirror of claim 1, wherein, The first protective layer (25) is a nano coating.

6. The anti-glare electronic rearview mirror of claim 1, wherein, The sensing control unit comprises a power supply module, a voltage control module electrically connected with the power supply module, and a light intensity sensor module electrically connected with the voltage control module.

7. The anti-glare electronic rearview mirror of claim 1, wherein, The voltage control module is electrically connected with the electric control anti-glare layer (23) and is used for controlling the driving voltage applied to the electric control anti-glare layer (23). The base body (21) is a glass substrate.

8. The anti-glare electronic rearview mirror of claim 1, wherein, The second protective layer (26) is formed by transparent silica gel coating.

9. The anti-glare electronic rearview mirror of claim 1, wherein, The outer edge of the reflective glass panel (2) is provided with a protective frame (3).

10. The anti-glare electronic rearview mirror of claim 1, wherein, ​

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