TW202338468A - Electrochromic rearview mirror lens set capable of increasing visual range comprising a first part, a second part and an electrochromic medium - Google Patents

Abstract

An electrochromic rearview mirror lens set capable of increasing a visual range comprises a first part, a second part and an electrochromic medium. The first part includes a first substrate and a transparent conductive layer. The transparent conductive layer is disposed on the first substrate. The second part includes a second substrate and a transflective conductive layer. The transflective conductive layer is disposed on the second substrate. The electrochromic medium is disposed between the first part and the second part. An area of the transparent conductive layer of the first part extends beyond the electrochromic medium and exposes a first conductive region backward. The second substrate of the second part has a perforation parallel to a viewing direction so that the transflective conductive layer exposes a second conductive region backward. The first part also includes a hiding layer disposed on a surrounding area of the first inner side of the first substrate. The electrochromic rearview mirror lens set further comprises a sealing member disposed between an edge of the first part and an edge of the second part. The transparent conductive layer, the transflective conductive layer, and the sealing member define a chamber for containing the electrochromic medium. The electrochromic rearview mirror lens set also comprises a first electrical connection portion electrically connected to the first conductive region, and a second electrical connection portion including a conductive pillar filled in the perforation and electrically connected to the transflective conductive layer, and a conductive sheet disposed on the second outer side of the second substrate.

Description

An electrochromic rearview mirror lens set that increases the visual range

The present invention relates to an electrochromic rearview mirror lens set, and in particular to an electrochromic rearview mirror lens set that increases the visual range.

Recently, electrochromic technology has begun to be used in vehicle rearview mirrors. With an ambient light sensor, it can detect the ambient light intensity and output a signal to control the electrochromic element of the vehicle rearview mirror, allowing the electrochromic element to The light absorption properties are changed, changing the reflectance of the vehicle rearview mirror to light. Accordingly, the driver's eyes can be prevented from being affected by high-intensity reflected light.

Existing technologies can be found in US20210245661, US10343608, US10179546, US9694751, US10976588, US10823882, US10739591, etc.

In the prior art, in order to install an electrochromic element, it is necessary to introduce an electrical connection structure (such as US10703282) or an electrical insulation structure (such as US10399498) into the vehicle rearview mirror. These structures are usually provided at the edge of the electrochromic element, and A hiding layer needs to be set up for masking. As a result, the visible range of the rearview mirror is reduced (or the ratio of the visible range to the shielded range is reduced), and the overall appearance is hampered.

The main purpose of the present invention is to solve the problem of low visual range in existing electrochromic rearview mirror lens sets.

The invention provides an electrochromic rearview mirror lens set that increases the visual range, including: a first part including a first base material and a light-transmitting conductive layer. The first base material includes a first outer surface and a first An inner side, the light-transmitting conductive layer is disposed on the first inner side of the first base material; a second part including a second base material and a semi-reflective and semi-transmissive conductive layer, the second base material is opposite to The first base material is provided with and includes a second outer side and a second inner side, and the semi-reflective and semi-transmissive conductive layer is provided on the second inner side of the second base material, wherein from the first part toward the The second part is defined as a viewing direction; and an electrochromic medium is disposed between the light-transmitting conductive layer of the first part and the semi-reflective and semi-transmissive conductive layer of the second part; wherein, the An area of the light-transmitting conductive layer exceeds the electrochromic medium and exposes a first conductive area backside, and the second base material of the second part has a perforation parallel to the viewing direction to make the semi-reflection The semi-transmissive conductive layer exposes a second conductive region from its back.

The invention also provides an electrochromic rearview mirror lens set that increases the visual range, including: a first part including a first base material, a shielding layer and a light-transmitting conductive layer. The first base material includes a first base material. An outer side and a first inner side, the shielding layer is disposed on a surrounding area of the first inner side of the first base material, and the light-transmitting conductive layer is disposed on the first inner side of the first base material. On a middle area of the side and the shielding layer, the light-transmitting conductive layer located on the middle area is a visible range; a second part includes a second base material and a semi-reflective and semi-transmissive conductive layer, the second The base material is disposed relative to the first base material and includes a second outer side and a second inner side, and the semi-reflective and semi-transmissive conductive layer is disposed on the second inner side of the second base material, wherein from the The first part is defined as a viewing direction toward the second part, and the second base material of the second part has a perforation parallel to the viewing direction so that the semi-reflective and semi-transmissive conductive layer exposes a second conductive layer backside a region, the perforation is close to a first side end of the lens set; a sealing member is disposed between an edge of the first part and an edge of the second part, the first part, the second part and the sealing member define A chamber is produced, wherein an area of the light-transmissive conductive layer of the first part exceeds the sealing member and the second part, so that the light-transmissive conductive layer exposes a first conductive region backside, and in the An annular space is left outside the second part, and the first conductive area is close to a second side end of the lens set; an electrochromic medium is disposed in the chamber; a first electrical connection part is electrically Connected to the first conductive area and accommodated in the annular space; and a second electrical connection part including a conductive post filled in the through hole and electrically connected to the semi-reflective and semi-transmissive conductive layer and a conductive post disposed on the The conductive sheet on the second outer side of the second base material; wherein the shielding layer is at least higher than and shields the sealing member and the perforation when viewed from the viewing direction, and the perforation is as close as possible to the third lens set. One side end is such that the width of the masking layer is reduced as much as possible.

The terminology used in the description of the various embodiments herein is for the purpose of describing particular examples only and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise or a number of elements is intentionally limited.

The present invention discloses an electrochromic rearview mirror lens set that increases the visual range. Refer to "Fig. 1A" to "Fig. 1B" and "Fig. 2A" to "Fig. 2B". In one embodiment, the electrochromic rearview mirror lens set The lens assembly includes a first part 10 , a second part 20 , an electrochromic medium 30 , a sealing member 40 , a first electrical connection part 50 and a second electrical connection part 60 . Viewed from the side, there is an area difference between the first part 10 and the second part 20, leaving a space 70 outside the second part 20. The space 70 is used for setting a frame, and the second part The space 70 above the portion 20 is further used for disposing the first electrical connection portion 50 . The layers of the first part 10 and the second part 20 are arranged along a stacking direction 80 .

The first part 10 includes a first base material 11, a light-transmissive conductive layer 12 and a shielding layer 13. The first base material 11 includes a first outer side 111 and a first inner side 112. The light-transmissive conductive layer 12 The layer 12 and the masking layer 13 are disposed on the first inner side 112 of the first base material 11 . The first part 10 can be regarded as a front part, that is, the first part 10 faces the user, and a viewing direction 90 of the user is from the first outer side 111 to the first inner side 112, and the second Part 20 can be considered a rear component. Viewed from the viewing direction 90, the shielding layer 13 is in the shape of a ring. During manufacturing, the shielding layer 13 is first formed on a surrounding area 112a of the first inner side 112, and is formed on the first inner side. The light-transmitting conductive layer 12 is formed on a middle area of 112 and the shielding layer 13 .

The second part 20 includes a second base material 21 and a transflective conductive layer 22. The second base material 21 is disposed relative to the first base material 11. The second base material 21 includes a first base material 21. There are two outer sides 211 and a second inner side 212 . The semi-reflective and semi-transmissive conductive layer 22 is disposed on the second inner side 212 of the second base material 21 .

The first substrate 11 is a pair of transparent and insulating materials in the visible light region, and must have sufficient strength under the operating conditions of the automobile, such as glass, polymer or plastic. The glass can be borosilicate glass or soda-lime glass. Or float glass, etc. The requirements of the second substrate 21 are similar to that of the first substrate 11 , but the second substrate 21 does not need to be transparent. The second substrate 21 can be glass, ceramics, polymer or plastic.

The sealing member 40 is disposed between an outer ring area 10a on a back surface of the first part 10 and an outer ring area 20a on a front surface of the second part 20. The light-transmitting conductive layer 12, the semi-reflective semi-reflective layer The transmissive conductive layer 22 and the sealing member 40 define a chamber 41 for containing the electrochromic medium 30. Both sides of the electrochromic medium 30 contact the light-transmissive conductive layer 12 and the semi-reflective layer 12. Semi-transmissive conductive layer 22.

The sealing member 40 is used to prevent the electrochromic medium 30 from leaking outward. In an example, the sealing member 40 may be epoxy resin. The light-transmitting conductive layer 12 and the semi-reflective and semi-transmissive conductive layer 22 are used as electrodes respectively. The light-transmitting conductive layer 12 is made of materials with high light transmittance and good conductivity, such as fluorine-doped tin oxide, doped oxide Zinc, indium zinc oxide (Zn ₃ In ₂ O ₆ ), indium tin oxide (ITO), ITO/metal/ITO (IMI), etc. The semi-reflective and semi-transmissive conductive layer 22 has a multi-layer structure to achieve both semi-reflective and semi-transmissive conductive properties.

An area of the light-transmitting conductive layer 12 is larger than that of the electrochromic medium 30. The light-transmitting conductive layer 12 has a front surface 121 and a back surface 122. The back surface 122 includes a first conductive region 122a and a first Electrical contact area 122b, the outline of the first electrical contact area 122b corresponds to the sealing member 40 (or the chamber 41), and is surrounded by the first conductive area 122a. In other words, the first electrical contact area 122b is located in a central portion of the back surface 122, and the first conductive area 122a is located outside the central portion of the back surface 122. The back surface 122 of the light-transmissive conductive layer 12 exposes the first conductive region 122a (in contact with the first electrical contact region 122b of the light-transmissive conductive layer 12 and covered by the electrochromic medium 30). In this embodiment , the area of the light-transmissive conductive layer 12 exceeds the sealing member 40, and the first conductive area 122a is used to allow the light-transmissive conductive layer 12 to be connected to external electrical connections. It can be understood that in this embodiment, the back surface 122 of the first part 10 is the back surface 122 of the light-transmitting conductive layer 12 , and the outer ring region 10 a and the first conductive region 122 a are located on the back surface 122 superior. However, the outer ring region 10a is different from the first conductive region 122a. The outer ring region 10a is where the sealing member 40 is disposed, and the first conductive region 122a is exposed and where the first electrical connection part 50 is disposed. .

In the second part 20, the second base material 21 and the semi-reflective and semi-transmissive conductive layer 22 have substantially the same area and profile, and the second base material 21 has a through hole 213 parallel to the stacking direction 80, The semi-reflective and semi-transmissive conductive layer 22 has a front surface 221 and a back surface 222. The through hole 213 exposes a second conductive region 222a on the back surface 222 of the semi-reflective and semi-transmissive conductive layer 22. The second conductive region 222a It is used to allow the semi-reflective and semi-transmissive conductive layer 22 to be connected to external electrical connection lines. In this embodiment, the through hole 213 is perpendicular to the surface of the second base material 21 .

The first electrical connection part 50 is a conductive block, which can be a conductive glue. The first electrical connection part 50 is formed on the first conductive area 122a of the light-transmissive conductive layer 12 at a position away from the second part 20 , the first electrical connection part 50 is not close to or in contact with the second part 20 to prevent external electrical connection wires connected thereto from contacting the second part 20 . The second electrical connection part 60 includes a conductive post 61 and a conductive sheet 62. The conductive post 61 can also be made of conductive glue and filled in the through hole 213. One end of the conductive post 61 is connected to the semi-reflective and semi-transmissive conductive layer. 22, the other end of the conductive pillar 61 is located on the second outer side 211 of the second base material 21. The conductive sheet 62 is disposed on the second outer surface 211 of the second base material 21 and contacts the conductive pillar 61 . In this way, the first electrical connection part 50 and the second electrical connection part 60 can each be connected to a power source through a first electrical connection line and a second electrical connection line, thereby passing through the light-transmissive conductive layer 12 and The semi-reflective and semi-transmissive conductive layer 22 applies an electric field to the electrochromic medium 30 to adjust the color and/or transmittance of the electrochromic medium 30 .

The shielding layer 13 is provided to cover components such as the sealing member 40 , the first electrical connection portion 50 and the second electrical connection portion 60 in the viewing direction 90 to avoid affecting the user's viewing. In addition, in this embodiment, in order to ensure that the second part 20 and other components (such as the first electrical connection wire connected to the first electrical connection part 50) will not cause a short circuit due to accidental contact, it may be further The ground insulates around the second part 20, ensuring insulation by covering the periphery of the second part 20 (as viewed from the viewing direction 90). In an example of the present invention, a top end 20b and a bottom end 20c of the second part 20 are preferably respectively provided with an insulating layer.

In the present invention, the area of the light-transmitting conductive layer 12 not surrounded by the shielding layer 13 (such as the front surface 121 of the light-transmitting conductive layer 12 in "Figure 2A") determines the electrochromic rear view. The visible range of the lens set, in other words, for a lens set with the same area, the smaller the area of the shielding layer 13, the larger the visible range will be.

The area of the shielding layer 13 needs to be enough to cover the through hole 213 and the sealing member 40 in the viewing direction 90. "Figure 1B" shows that the shielding layer 13 under the electrochromic rearview mirror lens set has a width W1, the width W1 affects the area of the masking layer 13. The size of the width W1 depends on: a. a difference D1 between the first part 10 and the second part 20, b. a width W2 of the sealing member 40, and c. a size of the through hole 213 and a Location.

In the example of FIG. 1B , an outer edge 213a of the through hole 213 is separated from the bottom end 20c of the second part 20 by a distance D2, and the through hole 213 is located below an upper edge 13a of the masking layer 13 , in other words, the width W2 is greater than the distance D2. Accordingly, the width W1 of the masking layer 13 will be equivalent to the step difference D1 plus the width W2.

In terms of structural design, the width W2 must be sufficient to allow the sealing member 40 to be assembled and prevent the electrochromic medium 30 from leaking outward, and is usually a fixed parameter. Therefore, the step difference D1 is the main variable affecting the width W1. With the structure disclosed in the present invention, since the through hole 213 is provided in the second substrate 21 as an electrical connection path for one of the electrodes, there is no need to place the electrical connection path in the space 70 below. For the electrochromic rear As for the bottom side of the sight glass lens set, the step difference D1 between the first part 10 and the second part 20 can be reduced as much as possible.

Referring to "Fig. 3", in another embodiment, the first electrical connection part 50 includes a conductive block 51 and a conductive sheet 52. The conductive block 51 can be made of conductive glue. The conductive block 51 is formed on the light-transmitting On the first conductive area 122a of the conductive layer 12, at a position close to the second part 20, the conductive sheet 52 covers an electrical insulating member 53 provided on the top end 20b of the second part 20 and the second base material On the second outer side 211 of 21 , the conductive block 51 contacts the conductive sheet 52 . Thereby, the first electrical connection line can be connected to the conductive sheet 52 and be electrically connected via the conductive block 51 and the light-transmissive conductive layer 12 .

To sum up, the present invention uses a through hole provided in the rear part (ie, the second part) as an electrical connection path for one of the electrodes. Therefore, there is no need to place one of the electrical connection paths in the space at the bottom of the rear part (or It can be said that (without placing it in the edge area), the visible range and the area ratio of the visible range and the masking layer can be increased.

10:Part One 10a: Outer ring area 11:First base material 111:First outer side 112:First medial surface 112a: Surrounding area 12:Light-transmitting conductive layer 121: Front surface 122: Back surface 122a: First conductive area 122b: First electrical contact area 13: Masking layer 13a: Upper edge 20:Part 2 20a: Outer ring area 20b:Top 20c: bottom 21:Second base material 211:Second outer side 212:Second medial surface 213:Perforation 213a: outer edge 22: Semi-reflective and semi-transmissive conductive layer 221:Front surface 222: Back surface 222a: Second conductive area 30: Electrochromic medium 40:Sealing component 41: Chamber 50: First electrical connection part 51:Conductive block 52: Conductive sheet 53: Electrical insulation parts 60: Second electrical connection part 61:Conductive pillar 62: Conductive sheet 70:Space 80:Stacking direction 90:Viewing direction D1: step difference D2: distance W1: Width W2: Width

『FIG. 1A』 is a schematic cross-sectional view of the first embodiment according to the present invention. "Figure 1B" is a partially enlarged schematic diagram of "Figure 1A". "Fig. 2A" to "Fig. 2B" are explosion schematic diagrams according to an embodiment of the present invention. [Fig. 3] is a schematic cross-sectional view of a second embodiment of the present invention.

10:Part One

10a: Outer ring area

11:First base material

111:First outer side

112:First medial surface

112a: Surrounding area

12:Light-transmitting conductive layer

121: Front surface

122: Back surface

122a: First conductive area

13: Masking layer

13a: Upper edge

20:Part 2

20a: Outer ring area

20b:Top

20c: bottom

21:Second base material

211:Second outer side

212:Second medial surface

213:Perforation

213a: outer edge

22: Semi-reflective and semi-transmissive conductive layer

221:Front surface

222: Back surface

222a: Second conductive area

30: Electrochromic medium

40:Sealing component

50: First electrical connection part

60: Second electrical connection part

61:Conductive pillar

62: Conductive sheet

70:Space

90:Viewing direction

Claims (8)

An electrochromic rearview mirror lens set that increases the visual range, including: A first part includes a first base material and a light-transmitting conductive layer. The first base material includes a first outer side and a first inner side. The light-transmitting conductive layer is disposed on the first side of the first base material. on one inner surface; A second part includes a second base material and a semi-reflective and semi-transmissive conductive layer. The second base material is arranged relative to the first base material and includes a second outer side and a second inner side. The semi-reflective semi-transmissive conductive layer The transmissive conductive layer is disposed on the second inner side of the second substrate, wherein a viewing direction is defined from the first part toward the second part; and An electrochromic medium is disposed between the light-transmitting conductive layer of the first part and the semi-reflective and semi-transmissive conductive layer of the second part; Wherein, an area of the light-transmissive conductive layer of the first part exceeds the electrochromic medium and exposes a first conductive area backside, and the second base material of the second part has an area parallel to the viewing direction. A perforation is provided to expose a second conductive region on the back side of the semi-reflective and semi-transmissive conductive layer. The electrochromic rearview mirror lens set according to claim 1, wherein the first part further includes a shielding layer disposed in a surrounding area of the first inner side of the first base material. The electrochromic rearview mirror lens set according to claim 1, further comprising a sealing member disposed between an edge of the first part and an edge of the second part, the light-transmitting conductive layer, the semi-reflective layer The semi-transmissive conductive layer and the sealing member define a chamber containing the electrochromic medium. The electrochromic rearview mirror lens set as described in request item 1, which also includes: a first electrical connection portion electrically connected to the first conductive region; and A second electrical connection part includes a conductive pillar filled in the through hole and electrically connected to the semi-reflective and semi-transmissive conductive layer and a conductive sheet disposed on the second outer side of the second substrate. Semi-reflective and semi-transmissive conductive layer Semi-reflective and semi-transmissive conductive layer Semi-reflective and semi-transmissive conductive layer Semi-reflective and semi-transmissive conductive layer Translucent conductive layer. An electrochromic rearview mirror lens set that increases the visual range, including: A first part includes a first base material, a masking layer and a light-transmitting conductive layer. The first base material includes a first outer side and a first inner side. The masking layer is provided on the first base. On a surrounding area of the first inner side of the first base material, the light-transmitting conductive layer is disposed on a middle area of the first inner side of the first base material and the shielding layer, and the transparent conductive layer located on the middle area The photoconductive layer is a visible range; A second part includes a second base material and a semi-reflective and semi-transmissive conductive layer. The second base material is arranged relative to the first base material and includes a second outer side and a second inner side. The semi-reflective semi-transmissive conductive layer The transmissive conductive layer is disposed on the second inner side of the second substrate, wherein a viewing direction is defined from the first part toward the second part, and the second substrate of the second part has a direction parallel to the A perforation in the viewing direction allows the semi-reflective and semi-transmissive conductive layer to expose a second conductive area backside, the perforation is close to a first side end of the lens set; A sealing member is disposed between an edge of the first part and an edge of the second part, the first part, the second part and the sealing member define a chamber, wherein the light-transmitting and conductive part of the first part An area of the layer exceeds the sealing member and the second part, so that the light-transmissive conductive layer exposes a first conductive area backside and leaves an annular space outside the second part, and the first conductive layer The area is close to a second side end of the lens set; An electrochromic medium is arranged in the chamber; a first electrical connection portion electrically connected to the first conductive region and accommodated in the annular space; and a second electrical connection part, including a conductive pillar filled in the through hole and electrically connected to the semi-reflective and semi-transmissive conductive layer and a conductive sheet disposed on the second outer side of the second substrate; Wherein, the shielding layer is at least higher than and shields the sealing member and the perforation when viewed from the viewing direction, and the perforation is as close as possible to the first side end of the lens set so that a width of the shielding layer is as large as possible Zoom out. The electrochromic rearview mirror lens set according to claim 5, wherein the second electrical connection part is not disposed in the annular space. The electrochromic rearview mirror lens set according to claim 5, wherein the annular space has an upper part for accommodating the first electrical connection part and a lower part opposite to the upper part, wherein the lower part is smaller than The upper part. The electrochromic rearview mirror lens set according to claim 5, wherein the first conductive area of the light-transmissive conductive layer is close to a top of the lens set, and the second conductive area of the semi-reflective and semi-transmissive conductive layer is close to A bottom end of the lens set.

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