CN216139915U - Anti-glare rearview mirror lens, electrochromic element and anti-glare rearview mirror - Google Patents

Abstract

The application provides an anti-dazzle mesh rear-view mirror lens, electrochromic component and anti-dazzle mesh rear-view mirror, this lens includes from up the first transparent substrate who stacks gradually the setting down, electrochromic layer and second transparent substrate, and use the sealing to seal up electrochromic layer, set up the back bending towards the rear-view mirror lens with the at least same one side of second transparent substrate and electrochromic layer and form the bending limit, thereby make the sealing that is used for sealing up electrochromic layer that sets up at this bending limit hide the side at the rear-view mirror lens, the projection distance of sealing on the second transparent substrate plane reduces, thereby when observing from the rear-view mirror lens front, the width in unchangeable colour area reduces, the regional proportion of rear-view mirror lens has been increased, the security has been improved, and user's visual experience has been improved.

Description

Anti-glare rearview mirror lens, electrochromic element and anti-glare rearview mirror

Technical Field

The application relates to the technical field of electrochromism, in particular to an anti-dazzling rearview mirror lens, an electrochromic element and an anti-dazzling rearview mirror.

Background

The electrochromic phenomenon refers to a reversible color change phenomenon of a material under the action of an external electric field. The essence of electrochromism is that the material undergoes redox reaction under the action of an external electric field and current, so that the structure of the material is changed, and further, the absorption spectrum and the optical performance (such as absorptivity, transmissivity and reflectivity) are changed, and the appearance shows a phenomenon of reversible change of color and transparency. In recent years, electrochromic devices are widely applied to the fields of energy-saving windows, automobile rearview mirrors, display devices, mobile terminals and the like, and have good market application prospects.

Because electrochromic material is extremely sensitive to steam, need carry out good sealed to it to avoid the inside electrochromic material damage and the device inefficacy that lead to of the inside steam entering electrochromic device of external environment, consequently can set up the sealing all around at electrochromic material. However, the sealing part cannot be discolored, and thus, when the electrochromic material is applied to an automobile rearview mirror, the appearance consistency of the product is affected when the electrochromic material is observed from the mirror surface of the automobile rearview mirror. Therefore, in the prior art, a decoration ring is further disposed on the mirror surface to shield the sealing portion.

Referring to fig. 1, fig. 1 is a schematic structural view of an anti-glare rearview mirror for an automobile of the prior art, which includes a housing 10 ', a first transparent substrate 20 ' disposed inside the housing 10 ', a reflective plating layer 22 ' disposed on a surface of the first transparent substrate 20 ', a second transparent substrate 30 ' disposed at a distance from the first transparent substrate 20 ', an electrochromic layer 50 ' enclosed between the first transparent substrate 20 ' and the second transparent substrate 30 ', a sealing part 40 ' for enclosing the electrochromic layer 50 ', and a decorative ring 32 ' disposed on the second transparent substrate 30 ' for shielding the sealing part 40 '.

In the existing anti-glare rearview mirror, although the color of the decoration ring 32 ' is generally consistent with the color of the reflective plating layer 22 ' on the first transparent substrate 20 ' so that the decoration ring 32 ' and the reflective plating layer 22 ' are close to each other in color and reflectivity as much as possible, the decoration ring 32 ' still cannot change color, so that the area shielded by the decoration ring 32 ' cannot realize the anti-glare function, the shielded area is large, the safety is insufficient, and the visual experience is not good. Especially, after the color of the electrochromic layer 50 ' is changed, the color difference between the decoration ring 32 ' and the other regions of the first transparent substrate 30 ' may be large.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide an anti-dazzle mesh rear-view mirror lens, aim at reducing anti-dazzle mesh rear-view mirror lens because the sealed portion brings shelters from the region, and the anti-dazzle region of increase improves the security to improve user's visual experience.

To achieve the above objects, the present application provides an anti-glare rearview mirror lens, comprising:

a first transparent substrate having opposing first and second surfaces;

a reflective plating layer disposed on the first surface or the second surface of the first transparent substrate;

a second transparent substrate disposed in a stacked relation with the first transparent substrate to form a space between the first transparent substrate and the second transparent substrate;

the sealing part is used for sealing the periphery of the interval space so that the first transparent substrate, the second transparent substrate and the sealing part form an accommodating space;

the electrochromic layer is arranged in the accommodating space;

the side where the first transparent substrate is located is the back of the rearview mirror lens, the side where the second transparent substrate is located is the front of the rearview mirror lens, and at least one same side of the second transparent substrate and the electrochromic layer is bent towards the back of the rearview mirror lens to form a bent side, so that the projection length of the sealing part on the plane of the second transparent substrate is reduced, and the proportion of an anti-dazzle area of the anti-dazzle rearview mirror lens is increased.

The rearview mirror lens comprises a back surface and a front surface which are opposite, wherein the front surface is defined by observing the rearview mirror from a user, and the front surface is a surface facing the user and is a light-transmitting surface; the back is the side facing away from the user and is a reflecting surface. The first transparent substrate is provided with a reflection coating so as to form mirror reflection and serve as the back surface of the rearview mirror lens, and the second transparent substrate serves as the front surface of the rearview mirror lens. The first transparent substrate and the second transparent substrate may be, for example, glass substrates.

The first surface of the first transparent substrate is a surface back to the second transparent substrate, and the second surface is a surface facing the second transparent substrate, that is, the first surface is a surface where the back surface of the rearview mirror lens is located.

This application sets up the back bending towards the rear view mirror lens with the same one side at least of second transparent substrate and electrochromic layer and forms the crooked limit, thereby make the sealing that is used for sealing up the electrochromic layer that sets up at this crooked limit hide the side at the rear view mirror lens, the projection length of sealing on the second transparent substrate plane reduces, thereby when positive observation from the rear view mirror lens, the width in unchangeable colour region reduces, the proportion in the anti-dazzle region of rear view mirror lens has been increased, the security has been improved, and user's visual experience has been improved. And through the rear-view mirror lens scheme of this application can satisfy under the unchangeable condition in anti-dazzle zone, further reduce the size of rear-view mirror.

It is understood that the automobile rear view mirror includes an interior rear view mirror and an exterior rear view mirror. In the case of interior rearview mirrors, glare generally comes from the lamps of the rear vehicle, and the lamp light basically passes through the rear windshield of the automobile to reach the surface of the interior rearview mirror and is reflected into human eyes. Both side portions of the rear view mirror receive substantially no light through the rear windscreen of the vehicle, so that both side portions require no lower and upper edge height for the antiglare function, whereby the edge of the second transparent substrate and the electrochromic layer which is arranged curved towards the rear side of the mirror glass is preferably the lower or upper edge, or both, of the interior rear view mirror.

In the case of an automobile exterior mirror, the inside of the exterior mirror (right side of the left mirror, left side of the right mirror) is easily blocked for viewing reasons, and since the requirement for the antiglare function is not high for the inside of the exterior mirror, both the upper and lower sides and the outside, the side of the second transparent substrate and the electrochromic layer which is provided curved toward the back of the mirror lens is preferably the upper side or the lower side or the outside of the exterior mirror, or any combination of the upper side, the lower side and the outside.

The second transparent substrate and the electrochromic layer are arranged in a bending mode, so that the process difficulty is high, the productivity is influenced, and the cost is high.

The first transparent substrate, the electrochromic layer and the second transparent substrate may be connected by an adhesive layer, and the adhesive layer is an optically transparent adhesive material, such as PolyVinyl Butyral (PVB), Ethylene-vinyl Acetate Copolymer (EVA), oca (Optical Clear adhesive), SCA (supervisory control protocol) Optical adhesive, ionic intermediate film (SGP), liquid Optical adhesive loca (liquid Optical Clear adhesive), and the like.

The reflective coating is a specular reflective layer, and can be, for example, a cadmium layer, a silver layer, an aluminum layer, a silicon dioxide layer, a rhodium layer, or the like.

The following preferred technical solutions are not intended to limit the technical solutions provided in the present application, and the technical objects and advantages of the present application can be better achieved and achieved by the following preferred technical solutions.

As a preferred embodiment of the present application, at least one surface of the first transparent substrate facing the second transparent substrate is also curved toward the rear surface of the mirror lens at a position corresponding to the curved edge of the second transparent substrate and the electrochromic layer. That is, at least one of the same sides of the first transparent substrate, the second transparent substrate and the electrochromic layer is disposed to be curved toward the rear surface of the mirror lens.

The surface of the first transparent substrate facing the second transparent substrate is a second surface, and the bending mode of the first transparent substrate in the scheme includes that only the second surface of the first transparent substrate is bent, or both the second surface and the first surface of the first transparent substrate are bent. Through at least with the crooked setting of second surface for first transparent substrate, electrochromic layer and second transparent substrate are crooked laminating setting, improve the structural reliability and the steadiness of rear-view mirror.

In an embodiment, referring to fig. 3, the first surface and the second surface of the first transparent substrate are both curved toward the back surface of the rearview mirror lens at positions corresponding to the curved edges of the second transparent substrate and the electrochromic layer, so that the first transparent substrate, the electrochromic layer and the second transparent substrate are sequentially stacked in the same shape.

In the embodiment, the first surface and the second surface of the first transparent substrate are curved toward the back surface of the mirror plate at the curved edges of the second transparent substrate and the electrochromic layer, so that the thickness of the first transparent substrate can be reduced, thereby reducing the cost.

Preferably, referring to FIG. 11, the curvature radius of the surface of the second transparent substrate facing away from the first transparent substrate is R1, and R1 is 2.5mm ≦ 5 mm.

The smaller the curvature radius of the first transparent substrate and the second transparent substrate is, the greater the difficulty of curved surface lamination is, and meanwhile, when the electrochromic layer is of a flexible multilayer structure, the problems of film layer separation and the like are easily caused due to the too small curvature radius, so that the reliability of the device is influenced; however, if the radius of curvature of the first transparent substrate and the second transparent substrate is larger, the thickness of the rearview mirror is thicker, which affects the structural design of the rearview mirror. Therefore, in the embodiment, the curvature radius R1 of the surface of the second transparent substrate, which faces away from the first transparent substrate, is limited to 2.5mm or more and R1 or more and 5mm or less, so that the difficulty of 3D bonding can be greatly reduced, and the lens thickness N of the rearview mirror is ensured to be appropriate.

It can be understood that when the first transparent substrate is a flat plate, the radius of curvature of the surface of the second transparent substrate facing away from the first transparent substrate is also preferably R1, so that the bending difficulty is reduced and the device reliability is higher.

More preferably, referring to fig. 12 and 13, the projection length of the sealing portion on the plane of the second transparent substrate is M, and M is less than or equal to 3 mm.

In order to reduce the thickness N of the lens of the rearview mirror, the bending lengths of the first transparent substrate, the electrochromic layer and the second transparent substrate can be shortened under the condition of the curvature radius R1, and the projection length M of the sealing part on the plane of the second transparent substrate is increased, so that the M is in the range of less than or equal to 3mm in order to ensure the anti-dazzle function of the rearview mirror.

In another embodiment, referring to fig. 4, a surface of the first transparent substrate facing the second transparent substrate is curved toward the back surface of the mirror plate at a position corresponding to the curved edge of the second transparent substrate and the electrochromic layer, and a surface of the first transparent substrate facing away from the second transparent substrate is a plane.

In this embodiment, the plane is not bent relative to the bending, and the plane is the meaning of the plane of this embodiment, that is, the first surface of the first transparent substrate is not bent, so that the manufacturing difficulty of the first transparent substrate of this embodiment is reduced, and further, the production cost of the first transparent substrate is reduced, and the manufacturing cost of the rearview mirror is reduced.

In yet another embodiment, the first transparent substrate is a flexible substrate, and may be, for example, a flexible glass, a PET film, a PI film (polyimide), a water oxygen barrier film, a flexible plastic plate, or the like.

When the first transparent substrate and the second transparent substrate are both hard substrates, the edges of the two substrates are bent, so that a hard-to-hard curved surface alignment process is generally adopted when the two substrates are aligned, as is well known, the hard-to-hard alignment process has a high requirement on equipment, and particularly when the curved surfaces are aligned, the alignment precision requirement on the two substrates is quite high and slightly deviates, the two substrates cannot be aligned well, so that the product yield is low, and the productivity is difficult to improve. Therefore, in the embodiment, the first transparent substrate is set as the flexible substrate, so that the difficulty in curved surface combination with the second transparent substrate is greatly reduced, the process difficulty of the rearview mirror is greatly reduced, and the productivity can be greatly improved.

Preferably, referring to fig. 6, the first transparent substrate is provided with a buffer layer support.

It is understood that the solution that the first transparent substrate is a flexible substrate is applicable not only to the embodiment shown in fig. 6, but also to the embodiments shown in fig. 3 and 4 described above, and any other embodiments. Because first transparent substrate is the flexible substrate, therefore the rear-view mirror lens that forms when assembling with rear-view mirror backplate or structures such as casing, backplate and structures such as casing cause the damage to the flexible backplate very easily, consequently through setting up the buffer layer, can avoid the flexible substrate to cause the damage with structures such as backplate or casing direct contact when guaranteeing the installation stability of flexible substrate.

Preferably, referring to fig. 7, the edges of the first transparent substrate and the second transparent substrate bent toward the back surface of the mirror lens each include a horizontal section and a bent section, and the sealing portion is disposed between the horizontal sections.

In the embodiment, the sealing part is arranged between the horizontal sections, and the projection length of the sealing part on the plane of the second transparent substrate can be further reduced, so that the width of the non-discoloring area is further reduced, and the proportion of the anti-dazzle area is further increased.

Preferably, referring to fig. 8, the seal is disposed partially between the horizontal segments and partially between the curved segments.

The sealing part is partially arranged on the horizontal section and partially arranged on the bending section, so that the overall thickness of the rearview mirror lens can be reduced, and meanwhile, the projection length of the sealing part on the plane of the second transparent substrate is not too large.

It is understood that the manner in which the sealing portion is disposed between the horizontal segments in the present embodiment is not limited to the schemes shown in fig. 7 and 8, and is also possible in the scheme in which the first surface of the first transparent substrate is a plane and the second surface forms a curved edge.

Preferably, referring to fig. 9 and 14, the sealing part is disposed at a side of the first transparent substrate and the second transparent substrate.

The sides of the first transparent substrate and the second transparent substrate are opposite to the sides between the first transparent substrate and the second transparent substrate, and the sealing portion is provided on the sides of the first transparent substrate and the second transparent substrate as long as it is not provided between the lamination positions of the first transparent substrate and the second transparent substrate.

The sealing part in the embodiment shown in fig. 9 is filled in a preset position after the rest parts of the rearview mirror lens are completely assembled and installed in the shell of the rearview mirror, and the sealing part is cured to form the whole rearview mirror product.

Since the effective sealing distance of the electrochromic layer is the shortest distance of the electrochromic layer from the external environment, the thickness of the second transparent substrate of this embodiment should be >2mm in order to secure the sealing strength.

The seal in the embodiment of fig. 14 does not come into direct contact with the environment and the sealing performance is better.

It should be noted that the manner in which the sealing portion is provided at the side of the first transparent substrate and the second transparent substrate in this embodiment is also not limited to the scheme shown in fig. 9 and 14, and is also applicable to the scheme in which the first surface of the first transparent substrate is a flat surface, the second surface forms a curved edge, and the scheme in which both the first surface and the second surface of the first transparent substrate are flat surfaces.

As another preferred technical solution of the present application, please refer to fig. 5, wherein the first surface and the second surface of the first transparent substrate are both planar, and a filling layer is disposed between the electrochromic layer and the first transparent substrate.

In the scheme, the plane is not bent relative to the bending, and the plane is the meaning of the plane in the scheme, namely the first transparent substrate is not bent, so that the process difficulty of the rearview mirror lens is reduced, and the cost is reduced.

Preferably, the filling layer includes any one of PolyVinyl Butyral (PVB), Ethylene-vinyl Acetate Copolymer (EVA), oca (Optical Clear adhesive), SCA Optical adhesive, ionic intermediate film (Surper Safe Glas, SGP), liquid Optical adhesive loca (liquid Optical Clear adhesive);

preferably, the electrochromic layer is a flexible electrochromic device.

Referring to fig. 15, the electrochromic layer includes a first substrate layer, a first conductive layer, a color-changing layer, a second conductive layer, and a second substrate layer, which are sequentially stacked from bottom to top. The first substrate layer is connected with the first transparent substrate, and the second substrate layer is connected with the second transparent substrate.

Wherein, the discoloration layer comprises a discoloration material layer, an electrolyte layer and a counter electrode layer which are sequentially stacked. Wherein, the color-changing material layer is close to the first conductive layer or the second conductive layer. The materials of the electrochromic layers can be the materials disclosed in the prior art, and are not described in detail herein.

The first conductive layer and the second conductive layer may be made of a transparent conductive material known to those skilled in the art, and may be made of indium-tin oxide (ITO), aluminum-zinc oxide (AZO), fluorine-doped tin oxide (FTO), silver nanowires, graphene, carbon nanotubes, metal grids, or silver nanoparticles.

The first substrate layer and the second substrate layer are flexible optical grade transparent materials, such as PET (polyester film), cyclic olefin copolymer or cellulose triacetate.

The present application also provides an electrochromic element including:

a first transparent substrate having opposing first and second surfaces;

a second transparent substrate disposed in a stacked relation with the first transparent substrate to form a space between the first transparent substrate and the second transparent substrate;

the sealing part is used for sealing the periphery of the interval space so that the first transparent substrate, the second transparent substrate and the sealing part form an accommodating space;

the electrochromic layer is arranged in the accommodating space;

the first transparent substrate is arranged on the back face of the electrochromic element, the second transparent substrate is arranged on the front face of the electrochromic element, at least one same side of the second transparent substrate and the electrochromic layer is bent towards the back face of the electrochromic element to form a bent side, so that the projection length of the sealing part on the plane of the second transparent substrate is reduced, and the ratio of an effective color changing area of the electrochromic element is increased.

The electrochromic element can be used for preparing a back shell of electronic equipment, and the electrochromic element can change color, so that the ornamental value of the electronic equipment can be improved.

Preferably, the same opposite sides of the second transparent substrate and the electrochromic layer are both curved towards the back side of the electrochromic element to form curved sides.

It should be noted that all the above-mentioned improvements of the anti-glare rearview mirror lens are applicable to further improvements of the electrochromic element, and since the electrochromic element adopts all the improvements of the above-mentioned anti-glare rearview mirror lens, at least all the beneficial effects brought by the above-mentioned improvements are obtained, and no further description is given here.

The application provides an anti-dazzle rearview mirror lens is used for preparing anti-dazzle rearview mirror, and anti-dazzle rearview mirror still includes the casing except that the lens, and the first transparent substrate of anti-dazzle rearview mirror lens is installed in the casing.

The housing forms an overall appearance structure of the rearview mirror and plays a role of supporting, the front surface of the rearview mirror is a lens, the back surface of the rearview mirror is opposite to the lens, the inner side of the housing is the side facing the front surface of the rearview mirror, and the outer side of the housing is the back surface of the rearview mirror.

The first surface of the first transparent substrate facing the inner side of the shell can be attached to the inner side of the shell or separated from the inner side of the shell, and the specific installation mode is determined according to the anti-glare rearview mirror lens structure. For example, when the first transparent substrate is a flexible substrate, a buffer layer may be disposed between the first transparent substrate and the housing to support the first transparent substrate.

The application of the anti-dazzle rearview mirror increases the anti-dazzle area of the rearview mirror due to the fact that the width of the non-color-changing area of the anti-dazzle rearview mirror lens is reduced, safety is improved, and visual experience of a user is improved.

Optionally, the anti-glare rearview mirror may further include a decoration ring disposed on a side of the second transparent substrate opposite to the first transparent substrate to cover the sealing portion and a portion of the electrochromic layer connected to the sealing portion.

Because the sealing part of this application scheme's anti-dazzle mesh rear-view mirror reduces at the planar projection distance of second transparent substrate, consequently, the rosette also reduces at the planar projection distance of second transparent substrate, sets up the rosette and can improve the outward appearance uniformity of rear-view mirror, does not influence the anti-dazzle function of rear-view mirror simultaneously.

The application also provides an automobile, which comprises the anti-dazzling rearview mirror, and the anti-dazzling rearview mirror can be an automobile inner rearview mirror and also can be an automobile outer rearview mirror.

The automobile using the anti-dazzling rearview mirror has the advantages that the anti-dazzling function of the rearview mirror is better, so that drivers and passengers are not interfered by strong light when the back of the automobile is irradiated by the strong light, and the driving safety is improved.

Compared with the prior art, the beneficial effect of this application includes:

the application provides an anti-dazzle mesh rear-view mirror lens sets up the back bending towards the rear-view mirror lens with the same at least one side on second transparent substrate and electrochromic layer and forms the bending limit, thereby make the sealing that is used for sealing up the electrochromic layer that sets up at this bending limit hide the side at the rear-view mirror lens, the projection distance of sealing on the second transparent substrate plane reduces, thereby when positive observation from the rear-view mirror lens, the width in unchangeable colour region reduces, the anti-dazzle area of rear-view mirror lens has been increased, the security has been improved, and user's visual experience has been improved.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments are briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope of the present application.

FIG. 1 is a schematic view of a rearview mirror of the prior art;

fig. 2 is a schematic structural view of a rear view mirror according to embodiments 1 to 4 of the present invention;

fig. 3 is a schematic structural view of a rear view mirror according to embodiments 5 to 6 of the present invention;

fig. 4 is a schematic structural view of a rear view mirror of embodiment 7 of the present invention;

fig. 5 is a schematic structural view of a rear view mirror according to embodiment 8 of the present invention;

fig. 6 is a schematic structural view of a rear view mirror according to embodiment 9 of the present invention;

fig. 7 is a schematic structural view of a rear view mirror according to embodiments 10 to 11 of the present invention;

fig. 8 is a schematic structural view of a rear view mirror of embodiment 12 of the present invention;

fig. 9 is a schematic structural view of a rear view mirror of embodiment 13 of the present invention;

fig. 10 is a schematic structural view of a rear view mirror of embodiment 14 of the present invention;

fig. 11 is a schematic structural view of a rearview mirror of embodiment 15 of the utility model;

fig. 12 is a schematic structural view of a rear view mirror of embodiment 16 of the present invention;

fig. 13 is a schematic structural view of a rear view mirror of embodiment 17 of the present invention;

fig. 14 is a schematic structural view of a rear view mirror of embodiment 18 of the present invention;

fig. 15 is a schematic view of the structure of the electrochromic layer of the present invention.

Reference numerals:

10-a housing; 20-a first transparent substrate; 22-reflective coating; 24-a buffer layer; 30-a second transparent substrate; 32-a decorative ring; 40-a sealing part; 50-an electrochromic layer; 501-a first substrate layer; 502-a first conductive layer; 503-a color-changing layer; 504-a second conductive layer; 505 — a second substrate layer; 52-filling layer.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Unless defined otherwise, 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 application belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

An anti-glare rearview mirror lens and an anti-glare rearview mirror prepared from the same are an automobile interior rearview mirror, and as shown in fig. 2, the anti-glare rearview mirror lens comprises a shell 10 and a lens arranged on the shell 10, wherein the lens comprises a first transparent substrate 20, an electrochromic layer 50 and a second transparent substrate 30 which are arranged in a stacked mode, the first transparent substrate 20 is arranged on the shell 10, and a reflective coating 22 is arranged on one surface, facing the second transparent substrate 30, of the first transparent substrate 20. Wherein the electrochromic layer 50 is connected to the first and second transparent substrates 20 and 30 through polyvinyl butyral.

Referring to fig. 15, the electrochromic layer 50 includes a first substrate layer 501, a first conductive layer 502, a color-changing layer 503, a second conductive layer 504, and a second substrate layer 505, which are sequentially stacked from bottom to top. Wherein the first substrate layer 501 is connected to the first transparent substrate 20 and the second substrate layer 505 is connected to the second transparent substrate 30.

Wherein, the discoloration layer comprises a discoloration material layer, an electrolyte layer and a counter electrode layer which are sequentially stacked. Wherein, the color-changing material layer is close to the first conductive layer.

Wherein the electrochromic layer 50 is sealed by a sealing part 40 disposed between the first transparent substrate 20 and the second transparent substrate 30.

In the anti-glare rearview mirror lens of the present embodiment, the first transparent substrate 20, the electrochromic layer 50, and the second transparent substrate 30 are all bent toward the back surface of the anti-glare rearview mirror lens to form a bent edge, and the bent edge is one edge of the lower edge portion of the rearview mirror.

The length of the sealing part 40 of the anti-glare rearview mirror lens of embodiment 1 in the plane projection of the second transparent substrate 30 is less than 2.5mm, compared with the prior art, the shielding area caused by the sealing part 40 is greatly reduced, the anti-glare area of the rearview mirror is increased, the safety is improved, and the visual experience of a user is improved.

Example 2

Referring to fig. 2, the difference from example 1 is that the curved edges of the first transparent substrate 20, the electrochromic layer 50 and the second transparent substrate 30 are two side edges of the rearview mirror.

Example 3

Referring to fig. 2, the anti-glare rearview mirror of the embodiment is a left side rearview mirror of an automobile, and the bent edges of the first transparent substrate 20, the electrochromic layer 50 and the second transparent substrate 30 are the upper edge portion and the lower edge portion of the left side rearview mirror.

Example 4

Referring to fig. 2, the difference from example 1 is that the anti-glare rearview mirror of this example is a right rearview mirror of an automobile.

Example 5

Referring to fig. 3, the anti-glare rearview mirror of the embodiment is different from embodiment 1 in that a decoration ring 32 is further disposed on a surface of the second transparent substrate 30 facing the first transparent substrate 20, and the decoration ring 32 is used for shielding the sealing portion 40. The projection length of the decorative ring 32 on the plane of the second transparent substrate 30 is less than 2.5mm, the shielding area is greatly reduced, the anti-dazzle area is increased, the safety is improved, and the visual experience of a user is improved.

Example 6

Referring to fig. 3, the difference between the embodiment and the embodiment 5 is that the first transparent substrate 20 of the anti-glare rearview mirror lens of the embodiment is a flexible substrate, which greatly reduces the process difficulty and greatly improves the productivity.

Example 7

Referring to fig. 4, the difference between the anti-glare rearview mirror lens of the embodiment and the embodiment 1 is that the first transparent substrate 20 of the anti-glare rearview mirror lens of the embodiment is disposed on one surface of the housing 10 and is a plane, so that the manufacturing process of the housing 10 and the first transparent substrate 20 is simpler, and the production cost is reduced.

Example 8

Referring to fig. 5, the anti-glare rearview mirror lens of the embodiment is different from the embodiment 1 in that the first transparent substrate 20 is a flat glass plate without being bent, and a filling layer 52 for fixing the electrochromic layer 50 is disposed between the first transparent substrate 20 and the electrochromic layer 50, and the filling layer 52 is an ethylene-vinyl acetate copolymer.

Since the first transparent substrate 20 is a flat substrate, the difficulty of the manufacturing process is greatly reduced, and the productivity can be improved.

Example 9

Referring to fig. 6, the difference between the anti-glare rearview mirror of this embodiment and embodiment 6 is that the inner side of the housing 10 is a plane, a buffer layer 24 is further disposed between the first transparent substrate 20 and the housing 10, and the buffer layer 24 is made of buffer foam. Therefore, the process difficulty can be reduced, the installation stability of the flexible substrate is ensured, and meanwhile, the damage caused by the direct contact of the flexible substrate and the shell 10 structure is avoided.

Example 10

Referring to fig. 7, the anti-glare rearview mirror lens of the embodiment is different from that of embodiment 5 in that the curved sides of the first transparent substrate 20 and the second transparent substrate 30 of the anti-glare rearview mirror lens of the embodiment each include a curved section and a horizontal section, the horizontal section is substantially flush with the edge of the housing 10, and the sealing portion 40 is disposed between the horizontal section of the first transparent substrate 20 and the horizontal section of the second transparent substrate 30.

The anti-glare rearview mirror lens of the embodiment can further reduce the projection distance of the sealing part 40 on the plane of the second transparent substrate 30, thereby reducing the width of the non-discolored area, and the width of the non-discolored area of the anti-glare rearview mirror lens of the embodiment is about 1mm, which is greatly reduced compared with the prior art.

Example 11

Referring to fig. 7, the anti-glare rearview mirror of this embodiment is different from embodiment 10 in that the anti-glare rearview mirror of this embodiment is not provided with a decorative ring 32, and the presence or absence of the decorative ring 32 has little influence on the product performance because the non-discoloring region width is small.

Example 12

Referring to fig. 8, the anti-glare rearview mirror lens of the embodiment is different from embodiment 10 in that a sealing portion 40 is partially disposed at a bent section of a first transparent substrate 20 and a second transparent substrate 30, and partially disposed at a horizontal section of the first transparent substrate 20 and the second transparent substrate 30. The non-discolorable region of the anti-glare mirror lens of this embodiment is only slightly increased, but the entire length of the anti-glare mirror lens can be reduced.

Example 13

Referring to fig. 9, a difference from example 5 is that a sealing portion 40 of the anti-glare mirror lens of this example is disposed outside a first transparent substrate 20 and a second transparent substrate 30, instead of between the first transparent substrate 20 and the second transparent substrate 30. The thickness of the second transparent substrate 30 is 5mm in order to secure the sealing strength.

The sealing part 40 of the anti-glare rearview mirror of the embodiment is adhered to the inner side of the housing 10 after the first transparent substrate 20, the electrochromic layer 50 and the second transparent substrate 30 are adhered, and the sealing part 40 is filled in a preset position after the complete assembly is completed, so that the whole anti-glare rearview mirror product is formed after the sealing part 40 is cured. The sealing portion 40 not only has a sealing function with respect to the electrochromic layer 50 but also reinforces the coupling strength between the lens glass assembly and the housing 10.

Example 14

Referring to fig. 10, the difference between the anti-glare rearview mirror lens of the embodiment and the anti-glare rearview mirror prepared from the anti-glare rearview mirror lens of the embodiment and the embodiment 5 is that the reflective coating layer 22 of the anti-glare rearview mirror lens of the embodiment is arranged on the side of the first transparent substrate 20 opposite to the second transparent substrate 30.

Example 15

Referring to fig. 11, the anti-glare rearview mirror lens of the embodiment is different from that of embodiment 1 in that the second transparent substrate 30 has a radius of curvature of R1. In contrast to example 1, the second transparent substrate 30 has a radius of curvature of R0. R1> R0, the smaller the curvature radius of the second transparent substrate 30 is, the more difficult the 3D curved surface is to be attached to the substrate, and when the electrochromic layer is a flexible multilayer structure, the smaller the curvature radius is, the more likely the problems such as film separation occur, which affect the reliability of the device, so that it is necessary to set an appropriate curvature radius of the second transparent substrate 30.

Example 16

Referring to fig. 12, the difference from example 15 is that the first transparent substrate 20 and the second transparent substrate 30 of the anti-glare rearview mirror lens of this example are shortened and the sealing part 40 is moved toward the electrochromic layer 50. At this time, although the projection length M of the sealing portion 40 on the plane of the second transparent substrate 30 is slightly increased, the difficulty of 3D bonding of the glass substrate is greatly reduced, and the overall thickness N of the mirror lens is also reduced.

Example 17

Referring to fig. 13, the difference from example 16 is that the first transparent substrate 20 and the second transparent substrate 30 of the anti-glare rearview mirror lens of this example are further shortened and the sealing part 40 is further moved toward the electrochromic layer 50. The overall thickness N of the mirror lens can be further reduced, but the projection length M of the sealing portion 40 on the plane of the second transparent substrate 30 should be ensured to be less than or equal to 3 mm.

Example 18

Referring to fig. 14, the anti-glare rearview mirror of the embodiment is different from embodiment 13 in that a sealing part 40 is disposed between a second transparent substrate 30 and a housing 10, and the second transparent substrate 30 is extended to be connected to the housing 10, compared to embodiment 13, so that the sealing part 40 is not in direct contact with the environment, thereby enhancing the sealing effect.

Application example 1

An automobile comprising an automobile body, the anti-glare rearview mirror of embodiment 1 disposed in the automobile body, and the anti-glare rearview mirror of embodiment 3 disposed on the front left side of the automobile body, and the anti-glare rearview mirror of embodiment 4 disposed on the front right side of the automobile body.

The anti-dazzling rearview mirror is electrically connected with an automobile body through electrode wire led out from the first conducting layer and the second conducting layer of the electrochromic layer.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Moreover, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Claims (18)

1. An anti-glare rearview mirror lens, comprising:

a first transparent substrate having opposing first and second surfaces;

a reflective plating layer disposed on the first surface or the second surface of the first transparent substrate;

a second transparent substrate disposed in a stacked relation with the first transparent substrate to form a space between the first transparent substrate and the second transparent substrate;

the sealing part is used for sealing the periphery of the interval space so that the first transparent substrate, the second transparent substrate and the sealing part form an accommodating space;

the electrochromic layer is arranged in the accommodating space;

the side where the first transparent substrate is located is the back of the rearview mirror lens, the side where the second transparent substrate is located is the front of the rearview mirror lens, and at least one same side of the second transparent substrate and the electrochromic layer is bent towards the back of the rearview mirror lens to form a bent side, so that the projection length of the sealing part on the plane of the second transparent substrate is reduced, and the proportion of an anti-dazzle area of the anti-dazzle rearview mirror lens is increased.

2. The anti-glare rearview mirror lens of claim 1, wherein the opposing identical sides of the second transparent substrate and the electrochromic layer are each curved toward the back surface of the rearview mirror lens to form a curved edge.

3. The anti-glare rearview mirror lens according to claim 1, wherein a curvature radius of a face of the second transparent substrate facing away from the first transparent substrate is R1, and 2.5mm ≦ R1 ≦ 5 mm.

4. The anti-glare rearview mirror lens according to claim 1, wherein the projection length of the sealing portion on the plane of the second transparent substrate is M, and M is 3mm or less.

5. Anti-glare rearview mirror lens according to claim 1, wherein at least a side of the first transparent substrate facing the second transparent substrate is also curved toward a rear surface of the rearview mirror lens at a position corresponding to a curved edge of the second transparent substrate and the electrochromic layer.

6. The anti-glare rearview mirror lens of claim 5, wherein the first surface and the second surface of the first transparent substrate are each curved toward the rear surface of the rearview mirror lens at a position corresponding to a curved edge of the second transparent substrate and the electrochromic layer such that the first transparent substrate, the electrochromic layer, and the second transparent substrate are sequentially stacked in the same shape.

7. The anti-glare rearview mirror lens of claim 5, wherein a side of the first transparent substrate facing the second transparent substrate is curved toward a rear surface of the rearview mirror lens at a position corresponding to a curved edge of the second transparent substrate and the electrochromic layer, and a side of the first transparent substrate facing away from the second transparent substrate is planar.

8. The anti-glare rearview mirror lens of claim 5, wherein the first transparent substrate is a flexible substrate.

9. The anti-glare rearview mirror lens of claim 8, wherein the first transparent substrate is provided with a cushioning layer support.

10. The anti-glare rearview mirror lens of claim 5 or 6, wherein the edges of the first and second transparent substrates that are bent toward the rear surface of the rearview mirror lens each include a horizontal segment and a curved segment, the seal being disposed between the horizontal segments.

11. The anti-glare rearview mirror lens of claim 10, wherein the sealing portion is disposed partially between the horizontal segments and partially between the curved segments.

12. The anti-glare rearview mirror lens according to claim 1, wherein the sealing portion is provided at a side of the first transparent substrate and the second transparent substrate.

13. The anti-glare rearview mirror lens of claim 1, wherein the first and second surfaces of the first transparent substrate are planar, and a filler layer is disposed between the electrochromic layer and the first transparent substrate.

14. The anti-glare rearview mirror lens of claim 13, wherein the electrochromic layer is a flexible electrochromic device.

15. The anti-glare rearview mirror lens of claim 14, wherein the electrochromic layer comprises a first substrate layer, a first conductive layer, a color-changing layer, a second conductive layer, and a second substrate layer, which are sequentially stacked from bottom to top;

the first substrate layer is connected with the first transparent substrate, and the second substrate layer is connected with the second transparent substrate.

16. An electrochromic element, characterized by comprising:

a first transparent substrate having opposing first and second surfaces;

a second transparent substrate disposed in a stacked relation with the first transparent substrate to form a space between the first transparent substrate and the second transparent substrate;

the sealing part is used for sealing the periphery of the interval space so that the first transparent substrate, the second transparent substrate and the sealing part form an accommodating space;

the electrochromic layer is arranged in the accommodating space;

the first transparent substrate is arranged on the back face of the electrochromic element, the second transparent substrate is arranged on the front face of the electrochromic element, at least one same side of the second transparent substrate and the electrochromic layer is bent towards the back face of the electrochromic element to form a bent side, so that the projection length of the sealing part on the plane of the second transparent substrate is reduced, and the ratio of an effective color changing area of the electrochromic element is increased.

17. The electrochromic element of claim 16, wherein opposing identical two sides of the second transparent substrate and the electrochromic layer are each curved toward the back side of the electrochromic element to form a curved side.

18. An anti-glare rearview mirror comprising a housing and the anti-glare rearview mirror lens of any one of claims 1 to 15 disposed on the housing, wherein the first transparent substrate is mounted within the housing.

Images