CN211348943U - Conductive structure of electrochromic inside rear-view mirror - Google Patents
Conductive structure of electrochromic inside rear-view mirror Download PDFInfo
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- CN211348943U CN211348943U CN201922017804.3U CN201922017804U CN211348943U CN 211348943 U CN211348943 U CN 211348943U CN 201922017804 U CN201922017804 U CN 201922017804U CN 211348943 U CN211348943 U CN 211348943U
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- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The utility model provides a conducting structure of electrochromic inside rear-view mirror, includes that the bottom surface adheres to the first glass piece that has first conductive film and the second glass piece that the top surface adheres to the second conductive film, the bottom surface of first glass piece bonds together through annular sealed glue and the top surface of second glass piece, and it has electrochromic liquid to fill in the closed cavity that first glass piece bottom surface and second glass piece top surface and sealed gluey inner wall formed be provided with the IR printing ink layer that the one deck can interrupt ultraviolet ray and visible light only see through infrared ray on the bottom surface of second glass piece, the luminousness on IR printing ink layer is 5 ~ 20%. The utility model has the advantages that: the light transmittance of the conductive structure is 5-20%, so that the display effect of a display screen arranged on the rear side of the conductive structure is improved; the IR ink layer forms a good light-transmitting complementary relation through the combination of the second glass sheet and the second conductive film, the phenomena of red, yellow and the like of the glass sheet can be effectively eliminated, and the brightness of the whole reflecting layer is increased.
Description
Technical Field
The utility model relates to an automobile anti-dazzle mirror preparation technical field especially indicates a conductive structure of electrochromic inside rear-view mirror.
Background
One prior U.S. patent application No. CN201680071689.4 entitled "IR transmissive coating for electro-optic elements" discloses an electrochromic element comprising a first substrate and a second substrate. The first substrate includes a first surface and a second surface. The second substrate includes a third surface and a fourth surface. The first substrate and the second substrate form a cavity, and an electrochromic medium is arranged in the cavity. A dielectric coating is disposed on the fourth surface and is configured to provide improved transmission of the electrochromic element in the Near Infrared (NIR) range, wherein the near infrared transmission exceeds visible light transmission. However, the transmittance of the semi-transmissive and semi-reflective dielectric coating in the NIR range of the coating is greater than 30%, the transmittance cannot be controlled to 5-20% while the reflectance is 60-80%, and the semi-transmissive and semi-reflective dielectric coating itself has the characteristics of high reflectance and high transmittance, and may show different colors, and may show a red or yellow phenomenon, which affects the visual effect of the product, so the structure of the coating needs to be further improved.
Disclosure of Invention
The utility model aims to solve the technical problem that a luminousness is at 5 ~ 20% to above-mentioned prior art current situation and provides the electrically conductive structure of electrochromic inside rear-view mirror that can clearly show inside rear-view mirror rear side display screen content.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: this electrically conductive structure of electrochromic inside rear-view mirror, the first glass piece that has first conductive film is adhered to including the bottom surface and the second glass piece that the top surface adheres to the second conductive film, the bottom surface of first glass piece bonds together through annular sealed glue and the top surface of second glass piece, and it has electrochromic liquid, its characterized in that to fill in the sealed cavity that first glass piece bottom surface and second glass piece top surface and sealed gluey inner wall formed: the bottom surface of the second glass sheet is provided with an IR printing ink layer which can block ultraviolet rays and visible light and only transmits infrared rays, and the light transmittance of the IR printing ink layer is 5-20%.
As an improvement, the second conductive film is composed of a medium film layer and an ITO film layer, the reflectivity of the medium film layer is 60-80%, the light transmittance of the medium film layer is 20-40%, the medium film layer is attached to the top surface of the second glass sheet, and the ITO film layer is arranged on the top surface of the medium film layer.
The medium film layer is an integral structure formed by sequentially overlapping N groups of high-refraction layers and low-refraction layer laminated structures, and N is a natural number greater than 1.
In a further improvement, the high refractive layer is Nb2O5、TiO2、Si3N4One or more of the above materials; the low refractive layer is SiO2And (4) preparing.
In a further improvement, the high refractive layer and the low refractive layer each have a thickness less than 3000 a.
The further improvement is that the resistance value of the ITO film layer is 10-15 omega.
As a refinement, the first conductive film is an ITO film.
As an improvement, the first glass sheet and the second glass sheet are arranged in a vertically staggered manner, an upper electrode strip is clamped on the top edge of the first glass sheet, the first conductive film is connected with a power supply through the upper electrode strip, a lower electrode strip is clamped on the bottom edge of the second glass sheet, and the second conductive film is connected with the power supply through the lower electrode strip.
As an improvement, the manufacturing method of the conductive structure comprises the following steps,
cleaning a glass substrate serving as a second glass sheet, and plating a dielectric film layer on the top surface of the glass substrate, wherein the reflectivity of the dielectric film layer is 60-80%, and the light transmittance is 20-40%;
secondly, plating an ITO film layer on the top surface of the medium film layer, wherein the resistance value of the ITO film layer is 10-15 omega;
thirdly, silk-screen printing an IR printing ink layer on the bottom surface of the glass substrate to enable the light transmittance of the IR printing ink layer to be 5-20%;
fourthly, cutting the glass substrate processed in the third step into a second glass sheet according to a set size, and cleaning, removing chips and drying the second glass sheet after cutting;
and fifthly, bonding the dried second glass sheet and the first glass sheet with the bottom surface attached with the first conductive film together through the sealant, so that a cavity capable of being filled with electrochromic liquid is formed between the bottom surface of the first glass sheet, the top surface of the second glass sheet and the inner wall of the sealant, and after the electrochromic liquid is filled in the cavity, sealing the opening of the cavity by the sealant to completely seal the cavity, thus obtaining the conductive structure.
In a further improvement, in the fifth step, the first conductive film is an ITO film; the first glass sheet and the second glass sheet are arranged in a vertically staggered mode, an upper electrode strip is clamped on the top edge of the first glass sheet, the first conductive film is connected with a power supply through the upper electrode strip, a lower electrode strip is clamped on the bottom edge of the second glass sheet, and the second conductive film is connected with the power supply through the lower electrode strip.
Compared with the prior art, the utility model has the advantages of: the IR printing ink layer can block ultraviolet rays and visible light, so that the light transmittance of the conductive structure can be 5-20% by adjusting the thickness of the IR printing ink layer, and the display effect of a display screen arranged on the rear side of the conductive structure is improved; the dielectric film layer and the ITO layer adopted by the second conductive film belong to a hard film system, have the advantages of acid resistance, alkali resistance and difficult oxidation, and can meet the requirement of large-scale film coating processing, so that the defects that the film is easy to fall off in subsequent processing, the texture is soft, the coating process is easy to scratch in the laminating process, the film is exposed in the air after being coated and is easy to oxidize and vulcanize, the film is not cleaned by an acid-base cleaning agent, the product can be processed into a small film coating, the production efficiency is low, the production efficiency is greatly improved, and the product cost is reduced; the IR ink layer forms a good light-transmitting complementary relation through the combination of the second glass sheet and the second conductive film, the phenomena of red, yellow and the like of the glass sheet can be effectively eliminated, and the brightness of the whole reflecting layer is increased; the electrochromic inside rear-view mirror prepared by adopting the structure can meet the requirements of the inside rear-view mirror of the automobile no matter the color, the reflectivity, the transmittance or the response time, and is particularly suitable for the electrochromic inside rear-view mirror additionally provided with a liquid crystal display.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1, the conductive structure of the electrochromic inside rear-view mirror of the present embodiment includes a first glass plate 11 having a first conductive film 12 attached to a bottom surface thereof and a second glass plate 19 having a second conductive film attached to a top surface thereof, the bottom surface of the first glass plate 11 is bonded to the top surface of the second glass plate 19 by an annular sealant 14, a closed cavity 13 formed by the bottom surface of the first glass plate, the top surface of the second glass plate and an inner wall of the sealant is filled with an electrochromic liquid, a layer of IR ink layer 10 capable of blocking ultraviolet rays and visible light and transmitting only infrared rays is disposed on the bottom surface of the second glass plate 19, and the transmittance of the IR ink layer is 5-20%. The IR ink used for the IR ink layer 10 is an ink that can block ultraviolet rays and visible light and transmits only infrared rays. By adjusting the thickness of the IR ink printed on the transparent material, the transmittance of light of a given wavelength can be adjusted. The specific molecular structure and method of making the IR ink are well known in the art and will not be described in detail.
The second conductive film is composed of a dielectric film layer 15 and an ITO film layer 16, the reflectivity of the dielectric film layer 15 is 60-80%, the light transmittance of the dielectric film layer 15 is 20-40%, the dielectric film layer 15 is attached to the top surface of the second glass sheet 19, and the ITO film layer 16 is arranged on the top surface of the dielectric film layer 15. The dielectric film layer 15 is an integral structure formed by sequentially overlapping N groups of high-refraction layers and low-refraction layer lamination structures, wherein N is a natural number greater than 1. The high refractive layer being Nb2O5、TiO2、Si3N4One or more of the above materials; the low refractive layer is SiO2The thickness of the high refraction layer and the thickness of the low refraction layer are both less than 3000 Å, the resistance value of the ITO film layer 16 is 10-15 omega, the first conductive film 12 is an ITO film, the first glass sheet 11 and the second glass sheet 19 are arranged in a vertically staggered mode, an upper electrode strip 21 is clamped on the top edge of the first glass sheet 11, the first conductive film 12 is connected with a power supply through the upper electrode strip 21, a lower electrode strip 22 is clamped on the bottom edge of the second glass sheet 19, and the second conductive film is connected with the power supply through the lower electrode strip 21The conductive film is connected to a power source via the lower electrode bars 22. EC glass is used for the first glass sheet 11 and the second glass sheet 19. ITO refers to indium tin oxide.
The method for manufacturing the conductive structure comprises the following steps,
cleaning a glass substrate serving as a second glass sheet 19, and plating a dielectric film layer 15 on the top surface of the glass substrate to ensure that the reflectivity of the dielectric film layer 15 is 60-80% and the light transmittance is 20-40%;
secondly, plating an ITO film layer 16 on the top surface of the dielectric film layer 15, wherein the resistance value of the ITO film layer 16 is 10-15 omega;
thirdly, silk-screening an IR printing ink layer 10 on the bottom surface of the glass substrate to enable the light transmittance of the IR printing ink layer 10 to be 5-20%;
fourthly, cutting the glass substrate processed in the third step into a second glass sheet 19 according to a set size, and cleaning, removing chips and drying the second glass sheet 19 after cutting;
and fifthly, bonding the dried second glass sheet 19 and the first glass sheet 11 with the bottom surface adhered with the first conductive film 12 together through the sealant 14, so that a cavity capable of being filled with electrochromic liquid is formed between the bottom surface of the first glass sheet, the top surface of the second glass sheet and the inner wall of the sealant, and after the cavity is filled with the electrochromic liquid, sealing the opening of the cavity by using the sealant to completely seal the cavity, thus obtaining the conductive structure.
In step five, the first conductive film 12 is an ITO film; the first glass sheet 11 and the second glass sheet 19 are arranged in a vertically staggered manner, an upper electrode strip 21 is clamped on the top edge of the first glass sheet 11, the first conductive film 12 is connected with a power supply through the upper electrode strip 21, a lower electrode strip 22 is clamped on the bottom edge of the second glass sheet 19, and the second conductive film is connected with the power supply through the lower electrode strip 22.
The basic structure of the electrochromic endoscope is mainly made of two pieces of conductive soda-lime glass into a glass box similar to a liquid crystal shell, a conductive electrochromic solution or gel is filled in the middle of the glass box, and then the glass box is sealed to form a shell-mounted structure. The four surfaces of the front piece glass and the rear piece glass in the conductive glass are sequentially a first surface, a second surface, a third surface and a fourth surface from front to back. The electrochromic rearview mirror is respectively made into a high-reflection low-transmission type and a full-reflection type according to whether a liquid crystal display is additionally arranged behind the rearview mirror. Many total reflection rearview mirrors adopt a third surface coated with a metal film as a conductive layer, and realize the reflection effect at the same time, or a layer of ITO is coated on the metal film layer, so that the total reflection rearview mirrors can be protected and can conduct electricity. The high-reflection semi-transparent anti-glare rearview mirror additionally provided with the liquid crystal display needs to have high reflectivity and lower transmissivity so as to facilitate the display of the liquid crystal; too high transmittance can cause the liquid crystal display module to be exposed, and too low transmittance can cause the light of the liquid crystal display module to be incapable of penetrating through the film layer, so that the display effect is not achieved. In order to realize the functions of high reflection and low transmission, various film layer structures such as NiCr + Ag + NiCr, Ni + Ag + Ni, Cr + Ru + Ag, a dielectric layer + ITO film layer and the like are adopted; ru, Ag and other metal targets have high cost, the utilization rate of the planar target is too low, and the one-time investment cost of the rotary target is too high.
The metal layer is adopted as a third surface conductive material or an ITO conductive protection layer is additionally plated, and the structure has the following adverse conditions of the metal film: 1. the coating is easy to fall off in subsequent processing, the texture is soft, the coating is easy to scratch in the process of lamination, and the coating is easy to oxidize and vulcanize when exposed in the air; 2. because the metal reflecting layer is not cleaned by an acid-base-resistant cleaning agent, the product can be processed into a film only in small pieces, and the product is directly processed without cleaning, the production efficiency is low, and the qualification rate is not guaranteed; 3. in the long-term use process of the product, oxygen, moisture and the like in the air are easy to oxidize, vulcanize and corrode the metal of the reflecting layer from the edge, and then gradually permeate into the reflecting layer, so that the service life and the performance of the product are seriously influenced.
Meanwhile, the reflectivity and the light transmittance of the dielectric layer and the ITO film layer are =100%, namely the reflectivity is higher, the transmittance is lower, the reflectivity is 60-80% and the light transmittance is 5-20%, and the dielectric film layer has the characteristics of high reflectivity and high transmittance, so that different colors can be presented, and the phenomena of redness or yellowing and the like can be caused, and the visual effect of the product is influenced.
An object of the utility model is to provide a conducting structure and this conducting structure's manufacturing method that rear-view mirror was used in electrochromic of low luminousness of improved generation car high reflectivity to overcome the above-mentioned shortcoming and not enough that prior art exists.
In order to solve the technical problem, the technical scheme adopted by the patent is as follows: the conductive structure comprises an IR ink layer, a high refraction layer, a low refraction layer and an ITO layer, wherein the IR ink can intercept ultraviolet rays and visible light and only enables infrared rays to penetrate. After the transparent material is printed, the transmittance of the specified wavelength can be adjusted; nb is selected as the material with high refractive index2O5、TiO2、Si3N4One or more of the low refractive index layers are made of SiO2The thickness of the high refractive index layer or the low refractive index layer is less than 3000 Å, the IR printing ink can block ultraviolet rays and visible light and only enables infrared rays to penetrate, after the transparent material is printed, the transmittance of specified wavelength can be adjusted, the transmittance can be controlled from 5% -20% by controlling the proportion and the thickness of the IR printing ink layer, the display effect of the liquid crystal is improved, meanwhile, the dielectric layer and the ITO layer belong to a hard film system, and the liquid crystal is acid-resistant and alkali-resistant and is not easy to oxidize, the requirements of large-sheet coating processing can be met, the production efficiency is greatly improved, and the product cost is greatly reduced.
The first step is as follows: cleaning electronic-grade float glass, plating high-refractive-index and low-refractive-index film layers on a tin surface of the glass for multiple times to form a dielectric layer with the reflectivity of 60-80% and the transmittance of 20-40%, wherein the material of the refractive index is Nb2O5、TiO2、Si3N4One or more of the low refractive index layers are made of SiO2Wherein the thickness of either the high index layer or the low index layer is less than 3000 Å;
the second step is that: coating an ITO film layer on the dielectric film layer, wherein the resistance is 10-15 omega;
the third step: printing a layer of IR printing ink on an air surface (the back of a coating layer) in a silk-screen printing mode, and controlling the IR printing ink layer according to the requirement of a product so as to realize the transmittance of the product to the specified wavelength of 5-20%;
the fourth step: cutting a large film into product sizes serving as high-reflection low-transmittance glass of the anti-glare rearview mirror, and carrying out subsequent production processes such as cleaning, adhering with another piece of ITO glass, filling liquid and the like;
compared with the traditional metal layer serving as a third reflecting layer or an ITO conductive protection layer additionally plated, the structure can overcome the defects that the film is easy to fall off in subsequent processing, the texture is soft, the coating process or the attaching process is easy to scratch, the film is exposed in the air after being coated and is easy to oxidize and vulcanize, the film is not cleaned by an acid-base cleaning agent, the product can be coated in a small piece processing mode, the production efficiency is low, and the like.
The IR ink is an ink which can block ultraviolet rays and visible light and transmits only infrared rays. After the transparent material is printed, the transmittance of the specified wavelength can be adjusted; the light-transmitting layer can be complementary with the dielectric layer, so that the phenomena of red and yellow emission and the like can be effectively eliminated, and the brightness of the whole reflecting layer is increased. Under the condition of well controlling the reflectivity and transmittance of the medium film layer, the light transmittance can be controlled from 5 to 20 percent by controlling the thickness of the IR printing ink film layer, and the display effect of the liquid crystal is improved.
The working principle is as follows: the IR ink used for the IR ink layer 10 is an ink that can block ultraviolet rays and visible light and transmits only infrared rays. The transmittance of light with specified wavelength can be adjusted by adjusting the thickness of the IR printing ink printed on the transparent material, so that the light transmittance on the specified glass sheet is 5-20%.
The electrochromic inside rear-view mirror prepared by adopting the structure can meet the requirements of the inside rear-view mirror of the automobile no matter the color, the reflectivity, the transmittance or the response time, and is particularly suitable for the electrochromic inside rear-view mirror additionally provided with a liquid crystal display.
Claims (8)
1. The utility model provides a conductive structure of electrochromic inside rear-view mirror, includes that the bottom surface adheres to first glass piece (11) that has first conducting film (12) and second glass piece (19) that the top surface adheres to the second conducting film, the bottom surface of first glass piece (11) bonds together through annular sealed glue (14) and the top surface of second glass piece (19), and it has electrochromic liquid, its characterized in that to fill in sealed cavity (13) that first glass piece bottom surface and second glass piece top surface and sealed glue inner wall formed: an IR printing ink layer (10) which can block ultraviolet rays and visible light and only transmits infrared rays is arranged on the bottom surface of the second glass sheet (19), and the light transmittance of the IR printing ink layer is 5-20%.
2. The conductive structure of claim 1, wherein: the second conductive film is composed of a medium film layer (15) with the reflectivity of 60-80% and the light transmittance of 20-40% and an ITO film layer (16), the medium film layer (15) is attached to the top surface of the second glass sheet (19), and the ITO film layer (16) is arranged on the top surface of the medium film layer (15).
3. The conductive structure of claim 2, wherein: the medium film layer (15) is an integral structure formed by sequentially overlapping N groups of high-refraction layers and low-refraction layer laminated structures, and N is a natural number greater than 1.
4. The conductive structure of claim 3, wherein: the thickness of the high-refraction layer and the thickness of the low-refraction layer are both smaller than 3000A.
5. The conductive structure of claim 2, wherein: the resistance value of the ITO film layer (16) is 10-15 omega.
6. The conductive structure of any of claims 1 to 5, wherein: the first conductive film (12) is an ITO film.
7. The conductive structure of any of claims 1 to 5, wherein: the first glass sheet (11) and the second glass sheet (19) are arranged in a vertically staggered mode, an upper electrode strip (21) is arranged on the top edge of the first glass sheet (11) in a clamped mode, the first conductive film (12) is connected with a power supply through the upper electrode strip (21), a lower electrode strip (22) is arranged on the bottom edge of the second glass sheet (19) in a clamped mode, and the second conductive film is connected with the power supply through the lower electrode strip (22).
8. The conductive structure of claim 6, wherein: the first glass sheet (11) and the second glass sheet (19) are arranged in a vertically staggered mode, an upper electrode strip (21) is clamped on the top edge of the first glass sheet (11), the first conductive film (12) is connected with a power supply through the upper electrode strip (21), a lower electrode strip (22) is clamped on the bottom edge of the second glass sheet (19), and the second conductive film is connected with the power supply through the lower electrode strip (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922017804.3U CN211348943U (en) | 2019-11-18 | 2019-11-18 | Conductive structure of electrochromic inside rear-view mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922017804.3U CN211348943U (en) | 2019-11-18 | 2019-11-18 | Conductive structure of electrochromic inside rear-view mirror |
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| Publication Number | Publication Date |
|---|---|
| CN211348943U true CN211348943U (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922017804.3U Expired - Fee Related CN211348943U (en) | 2019-11-18 | 2019-11-18 | Conductive structure of electrochromic inside rear-view mirror |
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| Country | Link |
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