Color-changing anti-dazzle rearview mirror
By setting up photosensitive sensors and multiple dimming layers in different areas on the rearview mirror, the strong glare area can be controlled independently, solving the problem that existing technologies cannot adjust for the strongest glare area, thus improving response speed and driving safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-03-20
AI Technical Summary
Existing anti-glare rearview mirrors cannot prioritize adjustment for the area with the strongest glare, causing the glare area to still interfere with the driver. At the same time, the slow response speed affects driving safety.
The rearview mirror is divided into two areas, each equipped with a photosensitive sensor and an independent control circuit. It utilizes a multi-layer dimming layer and a third electrode layer to achieve rapid adjustment of areas with strong glare. By setting two dimming layers in the second area and adding a third electrode layer in the middle, the adjustment of areas with strong glare is optimized, and the thickness of a single layer is reduced to improve the response speed.
It enables rapid adjustment of areas with strong glare, reduces the impact of overall darkening on the driver's vision, and improves response speed and driving safety.
Smart Images
Figure CN224020121U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of electrochromic, especially to a color-changing anti-dazzle rearview mirror. BACKGROUND
[0002] Automobile has become today's indispensable traffic tool, with the progress of science and technology, various high-tech devices on the car also bring more convenience for people. For example, night driving often is troubled by surrounding light, especially when the light from behind shines in, people often see dazzling light from the rearview mirror, so that people can not see the road conditions behind, even produce dizziness and cause traffic accidents, the generation of anti-dazzle rearview mirror solves the problem that people are troubled by strong light, reduces the risk of night driving.
[0003] In the prior art, the anti-dazzle rearview mirror monitors the glare intensity in real time through the light sensor and dynamically adjusts the driving voltage, so that the electrochromic layer changes color, thereby reducing the glare. However, due to the different glare intensities produced by light incident at different positions of the rearview mirror, the overall control mode of the electrochromic layer cannot prioritize the adjustment of the area with the strongest glare, resulting in that the area with the strongest glare still interferes with the driver, while other areas may be too dark, affecting the driver's observation of the road conditions behind. In addition, the response speed of large-area color change is usually slow, which cannot quickly respond to sudden strong light irradiation, which may cause the driver to be temporarily disturbed by glare, thereby affecting the driving safety. SUMMARY
[0004] The technical problem to be solved by the utility model is to provide a color-changing anti-dazzle rearview mirror, which effectively solves the problems in the background art.
[0005] In order to achieve the above purpose, the utility model adopts the technical scheme of a color-changing anti-dazzle rearview mirror, which comprises a shell, a display panel, a photosensitive sensor and a controller, the display panel comprises a glass substrate, a reflection layer, an electrochromic functional layer and a packaging layer arranged in layers;
[0006] The electrochromic functional layer comprises a first region and a second region arranged side by side, a first electrode layer arranged on both sides of the first region, and a second electrode layer arranged on both sides of the second region.
[0007] A first light adjusting layer is arranged in the first region, a second light adjusting layer and a third light adjusting layer are arranged in layers in the second region, and a third electrode layer is arranged between the second light adjusting layer and the third light adjusting layer.
[0008] Further, the sum of the thicknesses of the second light adjusting layer, the third light adjusting layer and the third electrode layer is equal to the thickness of the first light adjusting layer.
[0009] Furthermore, a fourth dimming layer is provided between the second dimming layer and the third dimming layer;
[0010] Furthermore, the second dimming layer and the third dimming layer are integrally formed with the first dimming layer to form a semi-closed structure;
[0011] The fourth dimming layer is placed inside the semi-enclosed structure, and the third electrode layer is provided on both sides of the fourth dimming layer.
[0012] Furthermore, the second dimming layer, the third dimming layer, and the fourth dimming layer have the same thickness.
[0013] Furthermore, the thickness of the second dimming layer, the third dimming layer, and the fourth dimming layer gradually increases along the light incident direction.
[0014] Furthermore, the materials of the first dimming layer, the second dimming layer, and the third dimming layer are all tungsten trioxide.
[0015] Furthermore, the material of the fourth dimming layer is tungsten trioxide.
[0016] Furthermore, the encapsulation layer employs a nano-superhydrophilic coating.
[0017] Furthermore, two photosensitive sensors are provided corresponding to the first and second regions of the electrochromic functional layer.
[0018] Furthermore, the first dimming layer protrudes towards the second region from the middle portion of the interface to form a transition zone, and a nano-coating is provided in the transition zone.
[0019] The beneficial effects of this utility model are as follows: By setting two dimming layers in the second region and adding a third electrode layer in the middle, this utility model can achieve independent control of the second region, thereby prioritizing the adjustment of the strong glare area. The layered design of the second region can reduce the thickness of a single layer, thereby improving the response speed, better coping with sudden strong light, and effectively ensuring driving safety. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the area division of the rearview mirror in an embodiment of this utility model;
[0022] Figure 2 FIG. 1 is a structural schematic diagram of a display panel according to an embodiment of the present application;
[0023] Figure 3 FIG. 2 is a first preferred structural schematic diagram of an electrochromic functional layer according to an embodiment of the present application;
[0024] Figure 4 FIG. 3 is a second preferred structural schematic diagram of an electrochromic functional layer according to an embodiment of the present application;
[0025] Figure 5 FIG. 4 is a first preferred structural schematic diagram of a transition zone according to an embodiment of the present application;
[0026] Figure 6 FIG. 5 is a second preferred structural schematic diagram of a transition zone according to an embodiment of the present application.
[0027] The reference signs: 01, shell; 02, display panel; 1, glass substrate; 2, reflective layer; 3, electrochromic functional layer; 3a, first area; 3b, second area; 31, first light adjusting layer; 32, second light adjusting layer; 33, third light adjusting layer; 34, first electrode layer; 35, second electrode layer; 36, fourth light adjusting layer; 37, third electrode layer; 38, transition zone; 39, nano coating; 4, encapsulation layer. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application.
[0029] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for purposes of illustration only and are not meant to be limiting.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0031] As Figures 1 to 6The color-changing anti-dazzling rearview mirror comprises a shell 01, a display panel 02, a photosensitive sensor and a controller, and the display panel 02 comprises a glass substrate 1, a reflection layer 2, an electrochromic functional layer 3 and an encapsulation layer 4 arranged in layers.
[0032] The electrochromic functional layer 3 comprises a first region 3a and a second region 3b arranged side by side, a first electrode layer 34 arranged on both sides of the first region 3a, and a second electrode layer 35 arranged on both sides of the second region 3b; a first light modulation layer 31 is arranged in the first region 3a, a second light modulation layer 32 and a third light modulation layer 33 are arranged in layers in the second region 3b, and a third electrode layer 37 is arranged between the second light modulation layer 32 and the third light modulation layer 33.
[0033] Specifically, the rearview mirror is divided into two regions, and two photosensitive sensors are arranged in the first region 3a and the second region 3b of the electrochromic functional layer 3.
[0034] When the high beam of the rear vehicle shines on the second region 3b, the control circuit immediately applies a high voltage (such as 3V) to the second region 3b to accelerate the response speed and make it quickly darken; a lower voltage (such as 1.5V) is applied to the first region 3a to moderately darken; and when the rear vehicle approaches and the light shines on the first region 3a, the voltage of the first region 3a is dynamically adjusted according to the light intensity to ensure that the glare is effectively suppressed.
[0035] The utility model discloses a two-layer light modulation layer is arranged in the second region 3b, and the third electrode layer 37 is added in the middle, the independent control of the second region 3b can be realized, thereby preferentially adjusting the strong glare region, and the layered design of the second region 3b can reduce the thickness of a single layer, thereby improving the response speed, better coping with sudden strong light, and effectively ensuring driving safety.
[0036] The sum of the thicknesses of the second light modulation layer 32, the third light modulation layer 33 and the third electrode layer 37 is equal to the thickness of the first light modulation layer 31 in the utility model.
[0037] On the premise of not affecting the overall thickness, more flexible optical modulation is realized.
[0038] In the preferred scheme of the utility model, the fourth light adjusting layer 36 is arranged between the second light adjusting layer 32 and the third light adjusting layer 33; the second light adjusting layer 32 and the third light adjusting layer 33 are integrally formed with the first light adjusting layer 31 to form a semi-closed structure; the fourth light adjusting layer 36 is arranged inside the semi-closed structure, and the third electrode layer 37 is arranged on both sides of the fourth light adjusting layer 36.
[0039] By arranging three light adjusting layers in the second area 3b, more complex optical modulation can be realized, and the adjustment of strong glare is further optimized; the first light adjusting layer 31 and the second light adjusting layer 32 are designed integrally with the first area 3a, so that the structure can be simplified, the process complexity is reduced, and the consistency of overall performance is maintained.
[0040] As the preferred scheme, the thicknesses of the second light adjusting layer 32, the third light adjusting layer 33 and the fourth light adjusting layer 36 are the same, which helps to realize more uniform optical performance and response speed, ensures the consistency of the performance of each light adjusting layer, and thus optimizes the overall optical modulation effect.
[0041] In another preferred structure, the thicknesses of the second light adjusting layer 32, the third light adjusting layer 33 and the fourth light adjusting layer 36 gradually increase along the light incidence direction. The thinner light adjusting layer can provide faster response speed, and the thicker light adjusting layer can provide deeper coloring effect, so that a balance between fast response and deep dimming is realized. This thickness distribution can better adapt to different intensity of glare, reduce the influence of overall dimming on the driver's field of view, and preferentially adjust the strong glare area.
[0042] In the preferred embodiment of the utility model, the materials of the first light adjusting layer 31, the second light adjusting layer 32 and the third light adjusting layer 33 are tungsten trioxide, and the material of the fourth light adjusting layer 36 is tungsten trioxide. The selection of high-performance tungsten trioxide helps to improve the response speed and stability.
[0043] In the utility model, the packaging layer 4 adopts a nano super-hydrophilic coating. The nano super-hydrophilic coating is used as the packaging layer 4 of the electrochromic rearview mirror, the light transmittance is significantly improved, and the coating has good dustproof and self-cleaning performance, so that the mirror surface can maintain good visual effect during dimming.
[0044] In the utility model, the obvious boundary between the first area 3a and the second area 3b can cause visual discontinuity and affect the visual experience of the driver. In order to realize smooth optical transition between the first area 3a and the second area 3b and avoid obvious area boundary, preferably, the first light adjusting layer 31 is protruded towards the second area 3b in the middle part of the boundary surface to form a transition zone 38, and a nano coating 39 is arranged in the transition zone 38.
[0045] Specifically, the transition zone 38 is an arc-shaped protrusion or a rectangular protrusion, if the arc-shaped protrusion, the contact surface of the second light modulation layer 32 and the third light modulation layer 33 at the interface is an arc surface, if the rectangular protrusion, the rectangular protrusion is located between the second light modulation layer 32 and the third light modulation layer 33, and has the same thickness as the third electrode layer 37, and the nano coating 39 is distributed along the interface track. Through the design of the transition zone 38, the smooth optical transition between the first region 3a and the second region 3b is realized, and the discontinuity in vision is avoided, and the nano coating 39 of the transition zone 38 can further optimize the optical performance, improve the light transmittance and reduce the reflection.
[0046] Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A photochromic anti-glare rearview mirror, characterized in that, It includes a housing (01), a display panel (02), a photosensitive sensor and a controller. The display panel (02) includes a glass substrate (1), a reflective layer (2), an electrochromic functional layer (3) and an encapsulation layer (4) stacked together. The electrochromic functional layer (3) includes a first region (3a) and a second region (3b) arranged in parallel, a first electrode layer (34) is arranged on both sides of the first region (3a), and a second electrode layer (35) is arranged on both sides of the second region (3b). A first dimming layer (31) is provided in the first region (3a), and a second dimming layer (32) and a third dimming layer (33) are stacked in the second region (3b). A third electrode layer (37) is provided between the second dimming layer (32) and the third dimming layer (33).
2. The photochromic anti-glare rearview mirror according to claim 1, characterized in that, The sum of the thicknesses of the second dimming layer (32), the third dimming layer (33), and the third electrode layer (37) is equal to the thickness of the first dimming layer (31).
3. The photochromic anti-glare rearview mirror according to claim 1, characterized in that, A fourth dimming layer (36) is provided between the second dimming layer (32) and the third dimming layer (33); Furthermore, the second dimming layer (32) and the third dimming layer (33) are integrally formed with the first dimming layer (31) to form a semi-closed structure; The fourth dimming layer (36) is placed inside the semi-enclosed structure, and the third electrode layer (37) is provided on both sides of the fourth dimming layer (36).
4. The photochromic anti-glare rearview mirror according to claim 3, characterized in that, The second dimming layer (32), the third dimming layer (33), and the fourth dimming layer (36) have the same thickness.
5. The photochromic anti-glare rearview mirror according to claim 3, characterized in that, The thickness of the second dimming layer (32), the third dimming layer (33), and the fourth dimming layer (36) gradually increases along the incident direction of light.
6. The photochromic anti-glare rearview mirror according to claim 1, characterized in that, The first dimming layer (31), the second dimming layer (32) and the third dimming layer (33) are all made of tungsten trioxide.
7. The photochromic anti-glare rearview mirror according to claim 3, characterized in that, The material of the fourth dimming layer (36) is tungsten trioxide.
8. The photochromic anti-glare rearview mirror according to claim 1, characterized in that, The encapsulation layer (4) adopts a nano-superhydrophilic coating.
9. The photochromic anti-glare rearview mirror according to claim 1, characterized in that, Two photosensitive sensors are provided in the first region (3a) and the second region (3b) of the electrochromic functional layer (3).
10. The photochromic anti-glare rearview mirror according to claim 1, characterized in that, The first dimming layer (31) protrudes towards the second region (3b) in the middle part of the interface to form a transition region (38), and a nano-coating (39) is provided in the transition region (38).