Semi-transparent and semi-reflective cover plate structure and electronic rearview mirror

Abstract

The utility model discloses a semi-transparent and semi-reflective cover plate structure, which comprises a cover plate body, a mirror-like silver ink layer and a protective layer, the mirror-like silver ink layer is arranged on one side face of the cover plate body, a plurality of light-transmitting holes are formed in the mirror-like silver ink layer in an etching mode, the light-transmitting holes are distributed in a rectangular array mode, and the spacing distance between every two adjacent light-transmitting holes is the same; and the protective layer covers the mirror-like silver ink layer and is used for isolating and protecting the mirror-like silver ink layer. Thus, the mirror-like silver ink layer is arranged on the cover plate body, and the light-transmitting hole is formed in the mirror-like silver ink layer in an etching mode, that is, reflection can be completed in an area with the mirror-like silver ink layer, and transmission can be completed through the light-transmitting hole, so that the electronic rearview mirror can clearly see the driving condition after a vehicle through reflection, and can also be used for reflecting the vehicle. A display picture on the screen can be observed through transmission; and meanwhile, the mirror-like silver ink layer is covered with the protective layer, and the mirror-like silver ink layer is isolated and protected through the protective layer, so that the mirror-like silver ink layer is prevented from being scratched.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted rearview mirrors, in particular to a semi-transparent and semi-reflective cover plate structure and an electronic rearview mirror. Background Art

[0002] With the development of science and technology, assisted driving systems have begun to be widely used in the automotive industry, including electronic rearview mirrors. As an important device for drivers to observe the rear of the vehicle, electronic rearview mirrors can provide drivers with a clearer and wider field of vision at night or in harsh conditions. However, in order to display images, existing electronic rearview mirrors usually adopt a fully transparent design, that is, only the displayed image on the electronic rearview mirror can be seen, and the driving conditions behind the vehicle cannot be seen through reflection. In this way, when the image display function of the electronic rearview mirror is abnormal, it will mislead the driver's judgment.

[0003] In view of the above, a semi-transparent and semi-reflective cover structure is proposed, so that the electronic rearview mirror can not only see the driving situation behind the car through reflection, but also observe the displayed picture on the screen through transmission. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a semi-transparent and semi-reflective cover plate structure and an electronic rearview mirror, so that the electronic rearview mirror can not only see the driving situation behind the vehicle through reflection, but also observe the displayed picture on the screen through transmission.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A semi-transparent and semi-reflective cover structure comprises: a cover body, a mirror silver ink layer and a protective layer; the mirror silver ink layer is arranged on one side surface of the cover body, and a plurality of light-transmitting holes are etched on the mirror silver ink layer, each of the light-transmitting holes is distributed in a rectangular array, and the interval distance between each two adjacent light-transmitting holes is the same; the protective layer covers the mirror silver ink layer, and the protective layer is used to isolate and protect the mirror silver ink layer.

[0007] In one embodiment, the cover plate body is a glass cover plate.

[0008] In one of the embodiments, the thickness of the glass cover plate is 1.8±0.05 mm.

[0009] In one embodiment, the mirror silver ink layer has a thickness of 1.5 μm.

[0010] In one embodiment, the diameter of the light-transmitting hole is 10-20 μm.

[0011] In one embodiment, the distance between each two adjacent light-transmitting holes is 10-20 μm.

[0012] In one embodiment, the distance between each two adjacent light-transmitting holes is 15 μm.

[0013] In one embodiment, the protective layer is a SIO2 protective layer, the SIO2 protective layer covers the mirror silver ink layer, and the SIO2 protective layer is used to isolate and protect the mirror silver ink layer.

[0014] In one embodiment, the thickness of the SIO2 protective layer is 40 nm.

[0015] An electronic rearview mirror comprises the above-mentioned semi-transparent and semi-reflective cover plate structure.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] The semi-transparent and semi-reflective cover plate structure and the electronic rearview mirror of the utility model are provided with a mirror silver ink layer on the cover plate body, and light-transmitting holes are formed in the mirror silver ink layer by etching, so that the area with the mirror silver ink layer can complete reflection, and the light-transmitting holes complete transmission, so that the electronic rearview mirror can not only see the driving situation behind the vehicle through reflection, but also observe the displayed picture on the screen through transmission; at the same time, a protective layer is covered on the mirror silver ink layer, and the protective layer is used to isolate and protect the mirror silver ink layer, so as to prevent the mirror silver ink layer from being scratched. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0019] Figure 1 It is a schematic diagram of the stacking structure of the semi-transparent and semi-reflective cover plate structure and the electronic rearview mirror in one embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of the front view structure of the semi-transparent and semi-reflective cover structure and the electronic rearview mirror in one embodiment of the utility model. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0022] See also Figure 1 and Figure 2As shown, a semi-transparent and semi-reflective cover structure 10 includes: a cover body 100, a mirror silver ink layer 200 and a protective layer 300; the mirror silver ink layer 200 is arranged on a side surface of the cover body 100, and a plurality of light-transmitting holes 210 are etched on the mirror silver ink layer 200, and each light-transmitting hole 210 is distributed in a rectangular array, and the interval distance between each two adjacent light-transmitting holes 210 is the same; the protective layer 300 covers the mirror silver ink layer 200, and the protective layer 300 is used to isolate and protect the mirror silver ink layer 200.

[0023] It should be noted that, by providing a mirror silver ink layer 200 on the cover body 100, and forming light-transmitting holes in the mirror silver ink layer 200 by etching, the area with the mirror silver ink layer 200 can complete reflection, and the light-transmitting holes 210 complete transmission, so that the electronic rearview mirror can not only see the driving situation behind the car through reflection, but also observe the displayed picture on the screen through transmission; at the same time, a protective layer 300 is covered on the mirror silver ink layer 200, and the protective layer 300 is used to isolate and protect the mirror silver ink layer 200, so as to prevent the mirror silver ink layer 200 from being scratched. Furthermore, it should be noted that semi-transmissive and semi-reflective means that the cover of the electronic rearview mirror has the function of semi-transmissive and semi-reflective. The purpose of transmission is to display the picture, and the purpose of reflection is to see the driving situation behind the car through reflection. When making a semi-transmissive and semi-reflective cover structure, a layer of mirror silver ink layer 200 is first plated on the front surface of one side of the cover body 100, and then a part of the mirror silver ink is etched away through an exposure and development process, so as to form a light-transmitting hole on the mirror silver ink layer 200, so that the reflection can be completed in the place where there is mirror silver, and the transmission can be completed in the place where there is a light-transmitting hole. Since the accuracy of the exposure and development process and the yellow light process can reach the micrometer level, the light-transmitting hole formed cannot be distinguished from the naked eye whether there is a mirror silver ink layer, so it can play a good concealment. In addition, in order to ensure the uniformity of the display effect, it is also necessary to ensure the uniformity of the position of the light-transmitting hole to ensure the uniformity of light transmission. Therefore, in the utility model, the light-transmitting holes 210 are distributed in a rectangular array, and the spacing distance between each two adjacent light-transmitting holes 210 is the same.

[0024] Preferably, the cover body 100 is a glass cover. A cover made of glass has high light transmittance, so the display effect can be ensured. Preferably, the thickness of the glass cover is 1.8±0.05 mm, for example, the thickness of the glass cover is 1.8 mm.

[0025] Preferably, the thickness of the mirror silver ink layer 200 is 1.5 μm.

[0026] Furthermore, in one embodiment, the diameter of the light-transmitting hole 210 is 10-20 μm. In the present embodiment, the light-transmitting hole 210 is a circular structure, and the diameter of the light-transmitting hole 210 of the circular structure is preferably 10-20 μm, so as to ensure sufficient transmission effect to display the picture, while also preventing the light-transmitting hole from being perceived by the naked eye. Preferably, the diameter of the through hole 210 is 15 μm. In the present embodiment, the spacing distance between each two adjacent light-transmitting holes is 10-20 μm, and preferably, the spacing distance between each two adjacent through holes is 15 μm, so that the reflection effect and the transmission effect are in a balanced and optimal state; and if a high reflection effect is required, 15 μm can be used as a reference point to increase the spacing distance between each two adjacent through holes; similarly, if a high transmission effect is required, 15 μm can be used as a reference point to reduce the spacing distance between each two adjacent through holes.

[0027] In one embodiment, the protective layer 300 is a SIO2 (silicon dioxide) protective layer, which covers the mirror silver ink layer 200, and the SIO2 protective layer is used to isolate and protect the mirror silver ink layer. The SIO2 protective layer is a multilayer composite film composed of overlapping silicon nitride and silicon dioxide, which has high density and high hardness, so it can improve the protection of the mirror silver ink layer 200 and prevent the mirror silver ink layer 200 from being scratched by foreign objects during the production process. Preferably, the thickness of the SIO2 protective layer is 40nm, and the SIO2 protective layer should not be too thick to avoid reducing the protection of the mirror silver ink layer 200.

[0028] In one embodiment, a hardening layer 400 is further provided on a side surface of the cover body 100 away from the mirror silver ink layer, that is, one side surface of the cover body 100 is hardened, thereby improving the hardness, strength, wear resistance and corrosion resistance of the surface of the cover body, thereby ensuring the service life of the semi-transparent and semi-reflective cover structure.

[0029] An electronic rearview mirror comprises the above-mentioned semi-transparent and semi-reflective cover plate structure and a display screen. Through the semi-transparent and semi-reflective cover plate structure, the electronic rearview mirror can not only see the driving situation behind the vehicle through reflection, but also observe the displayed picture on the screen through transmission.

[0030] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A semi-transparent and semi-reflective cover plate structure, characterized in that: include: Cover plate body; A mirror silver ink layer, wherein the mirror silver ink layer is disposed on one side of the cover body, and a plurality of light-transmitting holes are etched on the mirror silver ink layer, wherein the light-transmitting holes are distributed in a rectangular array, and the interval between each two adjacent light-transmitting holes is the same; and A protective layer, the protective layer covers the mirror silver ink layer, and the protective layer is used to isolate and protect the mirror silver ink layer.

2. The semi-transparent and semi-reflective cover structure according to claim 1, characterized in that: The cover plate body is a glass cover plate.

3. The semi-transparent and semi-reflective cover plate structure according to claim 2, characterized in that: The thickness of the glass cover plate is 1.8±0.05 mm.

4. The semi-transparent and semi-reflective cover plate structure according to claim 1, characterized in that: The thickness of the mirror silver ink layer is 1.5 μm.

5. The semi-transparent and semi-reflective cover structure according to claim 1, characterized in that: The diameter of the light-transmitting hole is 10-20 μm.

6. The semi-transparent and semi-reflective cover structure according to claim 5, characterized in that: The spacing between any two adjacent light-transmitting holes is 10-20 μm.

7. The semi-transparent and semi-reflective cover plate structure according to claim 6, characterized in that: The spacing between any two adjacent light-transmitting holes is 15 μm.

8. The semi-transparent and semi-reflective cover plate structure according to claim 1, characterized in that: The protective layer is a SIO2 protective layer, the SIO2 protective layer covers the mirror silver ink layer, and the SIO2 protective layer is used to isolate and protect the mirror silver ink layer.

9. The semi-transparent and semi-reflective cover plate structure according to claim 8, characterized in that: The thickness of the SIO2 protective layer is 40 nm.

10. An electronic rearview mirror, characterized in that: The invention comprises the semi-transparent and semi-reflective cover plate structure as described in any one of claims 1 to 9.

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