Vehicle-mounted rearview mirror

Abstract

The vehicle-mounted rearview mirror comprises a lower polaroid, a lower substrate, an upper substrate, an upper polaroid and a cover plate which are sequentially stacked from bottom to top, the lower substrate is longer than the upper substrate and extends outwards to form a step, a driving IC (integrated circuit) and an FPC (flexible printed circuit) are bound on the upper surface of the lower substrate at the position of the step, and the driving IC and the FPC are arranged on the upper surface of the lower substrate at the position of the step. The lower polaroid, the lower substrate, the upper substrate and the upper polaroid close to the step are provided with camera shooting holes, the inner walls of the camera shooting holes are provided with black glue, the camera shooting holes are internally provided with camera shooting modules extending to the cover plate, and the camera shooting modules are electrically connected with the FPC. The camera module can shoot the outside through the upper polaroid and the cover plate, and the shot picture can be displayed on the rearview mirror in real time; and when other pictures need to be displayed, the pictures can be switched for display. The rearview mirror display screen is high in module transmittance, high in picture display brightness and free of backlight brightness loss; and the window for displaying the picture can also be displayed on a full screen.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile rearview mirrors, and more specifically to a vehicle-mounted rearview mirror. Background Art

[0002] In the early days, the rearview mirror in the car was just an ordinary mirror. With the development of display technology, the whole semi-transparent and semi-reflective rearview mirror display screen has become more and more common. The whole semi-transparent and semi-reflective rearview mirror display screen is generally a display screen when the screen is on, and a mirror when the screen is off. However, the module transmittance of this semi-transparent and semi-reflective rearview mirror display screen is low, the screen display brightness is low, and the backlight brightness loss is large. The other is a rearview mirror with half of the rearview mirror as a mirror and the other half as a display screen. The disadvantage of this half-mirror and half-display rearview mirror is that the display window is too small. Both of these types of vehicle-mounted rearview mirrors have certain disadvantages and cannot meet the high requirements of the market. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to design a vehicle-mounted rearview mirror which can satisfy both normal display brightness and full-screen picture display.

[0004] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0005] In order to solve the above technical problems, the utility model provides a vehicle-mounted rearview mirror, which includes a lower polarizer, a lower substrate, an upper substrate, an upper polarizer and a cover plate which are stacked in sequence from bottom to top, the lower substrate is longer than the upper substrate and extends outward to form a step, the upper surface of the lower substrate located at the step is bound with a driver IC and an FPC, and a camera hole is opened on the lower polarizer, the lower substrate, the upper substrate and the upper polarizer near the step, black glue is arranged on the inner wall of the camera hole, a camera module extending to the cover plate is arranged in the camera hole, and the camera module is electrically connected to the FPC.

[0006] As a preferred implementation of the vehicle-mounted rearview mirror provided by the utility model, two reinforcing plates are arranged staggered with each other on both sides of the FPC.

[0007] As a preferred implementation of the vehicle-mounted rearview mirror provided by the utility model, the widths of the two reinforcement plates are different.

[0008] As a preferred implementation of the vehicle-mounted rearview mirror provided by the utility model, the material of the reinforcement plate is FR4, PI or stainless steel.

[0009] As a preferred implementation of the vehicle-mounted rearview mirror provided by the utility model, outer surfaces of the two reinforcement plates are both provided with a surface treatment layer for improving surface roughness.

[0010] As a preferred implementation of the vehicle-mounted rearview mirror provided by the utility model, the surface treatment layer is diamond knurling.

[0011] As a preferred embodiment of the vehicle-mounted rearview mirror provided by the utility model, a plurality of grooves are formed on the upper surface of the cover plate by etching, and a plastic layer is covered on the upper side of the cover plate, and the plastic layer is embedded in the plurality of grooves.

[0012] As a preferred implementation of the vehicle-mounted rearview mirror provided by the utility model, the shape of the groove is square or circular.

[0013] As a preferred implementation of the vehicle-mounted rearview mirror provided by the utility model, the groove is a closing groove which is narrow on the outside and wide on the inside.

[0014] As a preferred implementation of the vehicle-mounted rearview mirror provided by the utility model, the cross-sectional shape of the groove is an isosceles trapezoid.

[0015] The utility model has the following beneficial effects:

[0016] Since the lower substrate and the upper substrate are provided with camera holes, and the camera module extending to the cover plate is arranged in the camera hole, the camera module can shoot the outside through the upper polarizer and the cover plate, and the shot picture can be displayed in real time on the rearview mirror; when other pictures need to be displayed, the picture can be switched to display. The module transmittance of this rearview mirror display screen is high, the picture display brightness is high, and there is no backlight brightness loss; the window of the display picture can also be displayed in full screen, so as to meet the high requirements of the market and improve the competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the scheme in the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 The utility model provides a structural schematic diagram of a vehicle-mounted rearview mirror.

[0019] Figure 2 This is a schematic diagram of the structure of Example 2.

[0020] Figure 3 This is a schematic diagram of the structure of Example 3.

[0021] Figure 4 for Figure 3 Schematic diagram of the exploded structure at the middle cover.

[0022] Figure 5 for Figure 3 Schematic diagram of the improved structure of the middle cover.

[0023] Description of Figure Numbers:

[0024] Lower polarizer 1; lower substrate 2; upper substrate 3; upper polarizer 4; cover plate 5; FPC 6; camera module 7;

[0025] Reinforcing plate 8; plastic layer 9; groove 51. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] The utility model provides a vehicle-mounted rearview mirror, which comprises a lower polarizer, a lower substrate, an upper substrate, an upper polarizer and a cover plate which are sequentially stacked from bottom to top, wherein the lower substrate is longer than the upper substrate and extends outward to form a step, a driving IC and an FPC are bound to the upper surface of the lower substrate located at the step, a camera hole is opened on the lower polarizer, the lower substrate, the upper substrate and the upper polarizer near the step, black glue is arranged on the inner wall of the camera hole, a camera module extending to the cover plate is arranged in the camera hole, and the camera module is electrically connected to the FPC.

[0030] Since the lower substrate and the upper substrate are provided with camera holes, and the camera module extending to the cover plate is arranged in the camera hole, the camera module can shoot the outside through the upper polarizer and the cover plate, and the shot picture can be displayed in real time on the rearview mirror; when other pictures need to be displayed, the picture can be switched to display. The module transmittance of this rearview mirror display screen is high, the picture display brightness is high, and there is no backlight brightness loss; the window of the display picture can also be displayed in full screen, so as to meet the high requirements of the market and improve the competitiveness of the product.

[0031] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention.

[0032] Example 1

[0033] See also Figure 1, a vehicle-mounted rearview mirror provided by the utility model, comprising a lower polarizer 1, a lower substrate 2, an upper substrate 3, an upper polarizer 4 and a cover plate 5 which are sequentially stacked from bottom to top, the lower substrate 2 is longer than the upper substrate 3 and extends outward to form a step, the upper surface of the lower substrate 2 located at the step is bound with a driver IC and FPC6, and a camera hole is provided on the lower polarizer 1, the lower substrate 2, the upper substrate 3 and the upper polarizer 4 near the step, a black glue is provided on the inner wall of the camera hole, a camera module 7 extending to the cover plate is provided in the camera hole, and the camera module 7 is electrically connected to the FPC6. Since the lower substrate 2 and the upper substrate 3 are provided with a camera hole, and the camera module 7 extending to the cover plate is provided in the camera hole, the camera module 7 can shoot the outside through the upper polarizer 4 and the cover plate 5, and the shot picture can be displayed in real time on the rearview mirror; when other pictures need to be displayed, the pictures can be switched for display. The module transmittance of this rearview mirror display screen is high, the screen display brightness is high, and there is no backlight brightness loss; the display window can also be displayed in full screen, thereby meeting the high requirements of the market and improving the competitiveness of the product.

[0034] Example 2

[0035] See also Figure 2 As a further optimization scheme of Example 1, in this embodiment, two reinforcing plates 8 that are staggered are provided on both sides of FPC6. In the traditional FPC6 design, reinforcing plates 8 are usually not provided or are provided at the same position and have the same width, resulting in the pressure applied being concentrated on the same straight line when plugging and unplugging FPC6, causing a slight break in the FPC6 line. The FPC6 provided by the utility model has two reinforcing plates 8 that are respectively located on both sides of the connecting portion and staggered. When the FPC6 is pulled out, the pressure exerted by the reinforcing plates 8 on the two sides on the FPC6 is not on the same line segment, and the stress will not be concentrated on the same straight line when bending, thereby avoiding stress concentration and the problem of easy slight break in the line at the gold finger, thereby improving product yield.

[0036] Furthermore, the two mutually staggered reinforcing plates 8 referred to in the utility model can be respectively arranged at two different positions; or the center point position can be the same, but the widths of the two reinforcing plates 8 are different. It is sufficient to make the stress of the two reinforcing plates 8 not be concentrated on the same straight line when they are bent. This can avoid stress concentration and the problem of easy micro-breakage of the line at the gold finger, thereby improving the product yield. In this embodiment, the reinforcing plates 8 include a first reinforcing plate and a second reinforcing plate. The widths of each reinforcing plate 8 are different, and their center points are on the same horizontal line, so that the edges of the reinforcing plates 8 are staggered and not concentrated on the same straight line.

[0037] Furthermore, the material of the reinforcing plate 8 is FR4, PI or stainless steel. In other embodiments, if the heat generated by the FPC 6 is relatively large, a heat dissipation material with better heat dissipation effect, such as an aluminum foil reinforcing plate 8, may also be used.

[0038] Furthermore, the outer surfaces of the first reinforcement plate and the second reinforcement plate are both provided with a surface treatment layer for increasing the surface roughness, so as to increase the friction between the worker and the first reinforcement plate and the second reinforcement plate, so that the FPC6 is easy to pull out.

[0039] Furthermore, the surface treatment layer is provided with diamond knurling on the outer surfaces of the first reinforcement plate and the second reinforcement plate, so that the FPC6 can be pulled out more easily, reducing the risk of the FPC6 circuit being broken.

[0040] Example 3

[0041] See also Figures 3 to 5 As a further optimization scheme of Example 1, in this embodiment, the upper surface of the cover plate 5 is covered with a plastic layer 9, and a plurality of grooves 51 are formed downward on the upper surface of the cover plate 5 by etching, and a portion of the lower surface of the plastic layer 9 is embedded in each groove 51. Since the surface of the groove 51 formed by etching has a certain degree of roughness, the plastic layer 9 can be tightly bonded to the groove 51 to prevent the cover plate 5 and the plastic layer 9 from falling off. Since the upper part of the cover plate 5 is covered with a plastic layer 9, and a plurality of grooves 51 are formed on the upper surface of the cover plate 5 by etching, and the plastic layer 9 can be embedded in the interior of the plurality of grooves 51, the grooves 51 formed by etching make the inner surface of the grooves 51 have a certain degree of roughness, and the surface of the grooves 51 with a certain degree of roughness can improve the bonding force between the grooves 51 and the plastic layer 9, thereby reducing the possibility of separation of the grooves 51 and the plastic layer 9. When the LCD screen is hit or falls, the plastic layer 9 on the upper surface of the cover plate 5 can directly withstand the external force, thereby preventing the external force from directly acting on the cover plate 5. Since the plastic layer 9 can absorb most of the energy, the remaining external force is very weak when it acts on the cover plate 5, thereby effectively reducing the risk of the cover plate 5 being broken or damaged; and when the LCD screen is subjected to external force, even if the external force is large, it will only damage the plastic layer 9 on the upper surface of the cover plate 5, and will not directly damage the cover plate 5, thereby preventing the cover plate 5 from being damaged and causing the LCD screen to be unable to be used normally, thereby bringing a better user experience to the user and improving the anti-fall ability of the LCD screen.

[0042] Furthermore, the plastic layer 9 located above the camera module 7 and the plastic layer 9 located in the display area are transparent plastics.

[0043] Furthermore, the shape of the groove 51 can be square or circular, and the cross-sectional shape of the groove 51 can be a closing groove that is narrow on the outside and wide on the inside. In the present embodiment, the cross-sectional shape of the groove 51 is an isosceles trapezoid, and the groove 51 is in the shape of an elongated strip. The isosceles trapezoid-shaped groove 51 can allow the plastic layer 9 to be tightly embedded in the groove 51, thereby preventing the groove 51 from being separated from the plastic layer 9, thereby preventing the cover plate 5 from falling off from the plastic layer 9. The elongated groove 51 can increase the fitting portion between the plastic layer 9 and the groove 51, thereby increasing the fitting strength between the groove 51 and the plastic layer 9.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A vehicle-mounted rearview mirror, characterized in that: It includes a lower polarizer, a lower substrate, an upper substrate, an upper polarizer and a cover plate which are stacked in sequence from bottom to top. The lower substrate is longer than the upper substrate and extends outward to form a step. The upper surface of the lower substrate located at the step is bound with a driver IC and an FPC. The lower polarizer, the lower substrate, the upper substrate and the upper polarizer near the step are provided with a camera hole. Black glue is provided on the inner wall of the camera hole. A camera module extending to the cover plate is provided in the camera hole, and the camera module is electrically connected to the FPC.

2. The vehicle-mounted rearview mirror according to claim 1, characterized in that: Two reinforcing plates staggered with each other are arranged on both sides of the FPC.

3. The vehicle-mounted rearview mirror according to claim 2, characterized in that: The widths of the two reinforcing plates are different.

4. The vehicle-mounted rearview mirror according to claim 2, characterized in that: The reinforcement plate is made of FR4, PI or stainless steel.

5. The vehicle-mounted rearview mirror according to claim 2, characterized in that: The outer surfaces of the two reinforcing plates are both provided with a surface treatment layer for improving the surface roughness.

6. The vehicle-mounted rearview mirror according to claim 5, characterized in that: The surface treatment layer is diamond knurled.

7. The vehicle-mounted rearview mirror according to claim 1, characterized in that: A plurality of grooves are formed on the upper surface of the cover plate by etching, and a plastic layer is covered on the upper side of the cover plate, and the plastic layer is embedded in the plurality of grooves.

8. The vehicle-mounted rearview mirror according to claim 7, characterized in that: The shape of the groove is square or circular.

9. The vehicle-mounted rearview mirror according to claim 7, characterized in that: The groove is a closing groove which is narrow outside and wide inside.

10. The vehicle-mounted rearview mirror according to claim 9, characterized in that: The cross-sectional shape of the groove is an isosceles trapezoid.

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