CN101738777B - Dye liquid crystal anti-glare vehicle rearview mirror - Google Patents
Dye liquid crystal anti-glare vehicle rearview mirror Download PDFInfo
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- CN101738777B CN101738777B CN2010100101019A CN201010010101A CN101738777B CN 101738777 B CN101738777 B CN 101738777B CN 2010100101019 A CN2010100101019 A CN 2010100101019A CN 201010010101 A CN201010010101 A CN 201010010101A CN 101738777 B CN101738777 B CN 101738777B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 54
- 239000000758 substrate Substances 0.000 claims abstract description 50
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000007639 printing Methods 0.000 claims abstract description 3
- 239000000975 dye Substances 0.000 claims description 41
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 3
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims 1
- 238000002310 reflectometry Methods 0.000 abstract description 24
- 238000004519 manufacturing process Methods 0.000 abstract description 5
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- 238000000034 method Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 2
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 6
- 229910052681 coesite Inorganic materials 0.000 abstract 3
- 229910052906 cristobalite Inorganic materials 0.000 abstract 3
- 239000000377 silicon dioxide Substances 0.000 abstract 3
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- 238000000926 separation method Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 26
- 239000004411 aluminium Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 238000001755 magnetron sputter deposition Methods 0.000 description 6
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- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229910006404 SnO 2 Inorganic materials 0.000 description 2
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
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Images
Abstract
The invention discloses a dye liquid crystal anti-glare vehicle rearview mirror, which is formed by overlaying a substrate A and a plane B at intervals according to the pattern of an ITO electrode, and then forms a close box body with peripheral sealing frames. The inner surface of a substrate B is sequentially provided with a SiO2 film, an Al film, a SiO2 film, a transparent conducting film and an orientation layer, and the inner surface of the substrate B is provided with the SiO2 film, the transparent conducting film and the orientation layer. The substrate A and the substrate B are separated by a separation material, and an insulating film in a special structure is designed by using a relief printing method, thereby simplifying manufacturing process. A specific box structure is utilized by utilizing a built-in Al dielectric film mode, without the need of etching the substrate B. When the vehicle rearview mirror is not powered up, the reflectivity of the rearview mirror can be up to about 75%, while the dark-state reflectivity is 10%-13% when powered up. The vehicle rearview mirror has the characteristic of high performance-price ratio and great competitive advantage.
Description
Technical field
The present invention relates to the reflection LCD technical field, particularly have the automobile rearview mirror of anti-glare function.
Background technology
Automobile rearview mirror is through the development of nearly a century and a half, and nowadays existing has not been the simple mirror of one side, but becomes the key equipment of guaranteeing driver's safe driving.The auto industry in modern age, each parts are all along with the progressive of science and technology brought in constant renewal in.
The anti-dazzle effect of the rearview mirror of automobile also constantly obtains progressive, and the driver obtains the information of front vehicle through the image of inside rear-view mirror and outside rear-view mirror in driving procedure.Image definition in the mirror obviously and the relative light intensity of image direct relation is arranged, the image on daytime for example, the various piece light intensity is even, imaging source does not have high light to send, it is very clear to form images.And the image at night, the car light of the automobile at rear has high light to send, and the light intensity of car light image is far longer than the image intensity of other part; When the situation of driver's observation rear car; Car light can be very dazzling, disturbs driver's sight line, and the image blur in the mirror; Easy occurrence of traffic accident, Here it is usually said dazzles the eyes problem.In order to address this problem, many scientists have carried out many researchs, have also obtained very big progress, and electrochromism and liquid crystal are the two types of maximum anti-dazzle driving mirrors that propose a plan.The Stark effect is electrochromic effect again, is the physical principle of electrochromic anti-glare automobile rearview mirror.The electrochromism rearview mirror is between two transparency electrodes, to add one deck electrochromic media.When extraneous strong illumination during to light sensor, driving circuit is made a response, and puts on electrochromic media to voltage through transparency electrode, and the color of whole mirror can deepening, filters out high light, makes imaging clear.Electrochromic anti-glare vehicle rearview mirror patent both domestic and external has a lot, like U.S.Pat.No.4902108,5724187 or the like.The electrochromism anti-glare vehicle rearview mirror has obtained to use widely, and is very slow but its maximum defective is its response speed, the shortest also wanting more than 2 seconds.For fear of the defective of this rearview mirror, make the fast anti-glare vehicle rearview mirror of response speed, many patents of the anti-glare vehicle rearview mirror of liquid crystal and dye liquid crystal of utilizing are put forward in succession.For example, U.S.Pat.Nos.4660937 and 4589735,4200361; The CN1539677A and the CN2710970 of China.
The liquid crystal rearview mirror is normally at glass baseplate surface sputter layer of transparent conductive electrode; And between two glass substrates, press from both sides the liquid crystal layer or the dye solution crystal layer of several microns of a number of plies microns to ten; When driving night; Through applying the ordered state that voltage changes liquid crystal molecule or dye molecule, realize minute surface by strong to weak transformation.This fringe time is smaller than 1 second usually.
Though the liquid crystal anti-glare rearview mirror has the fast advantage of response speed, it exists bright attitude bright inadequately, the perhaps dark dark inadequately shortcoming of attitude.The reflectivity of bright attitude is high more, and the reflectivity of dark attitude is low more, and the performance of anti-glare catoptron is good more.The general anti-dazzle driving mirror that does not add dyestuff, because the influence of polaroid, bright attitude reflectivity is difficult to surpass 50%.And the anti-dazzle driving mirror of dye solution crystal formation, the reflectivity of bright attitude can reach more than the 65-75%, but the reflectivity of dark attitude is still up to 16-20%.Although dark attitude reflectivity has the effect of certain anti-dazzle, with the comparison of electrochromic anti-dazzle driving mirror, secretly the reflectivity of attitude need reach about 10%, and the car light of the present overwhelming majority is just had better anti-dazzle effect.
In existing patent, catoptron is built-in minute surface with chromium with silver mainly, and the patent that has is chromium and surface and double the do conductive layer of silver as catoptron; Because the molecule of metal and liquid crystal or dyestuff directly contacts, under electric field action, especially under frequent electric field action; Cause organic molecule to decompose easily; Also reduce the resistance of liquid crystal or dye liquid crystal easily, increase power consumption, shaded effect descends.2003, CN1539677A proposed a solution, deposited one deck ITO transparency conducting layer, the successfully problem of contaminated solution again in the mirror surface of silver.But also there is the too high problem of catoptron cost in it.
Also have some to adopt the external catoptron of aluminium film, external aluminium film is easy to generate the phenomenon of ghost image usually, because the layering of light shield layer and catoptron causes ghost phenomena easily.The problem of external catoptron is that the ghost image problem and the processing technology complicacy that show cause the high problem of cost.On the other hand, because the Al film is very active, in process, very easily damage.The most common solution is to use two kinds of lines of production line of distinctive production line of Al film and ITO film to make up the production of accomplishing liquid crystal anti-glare vehicle rearview mirror.So not only increase the cost of rearview mirror greatly, and,, influence the life-span of display along with the time can slowly penetrate in the liquid crystal because the aluminium dielectric film fails to receive good protection.
Summary of the invention
For solving the problem that prior art exists, the invention discloses a kind of liquid crystal rearview mirror.
A kind of dye liquid crystal anti-glare vehicle rearview mirror of the present invention; Comprise substrate A and the B overlapping at certain intervals according to the pattern of ITO electrode; And the sealed frame around substrate A and the B is formed airtight box body; The part at interval is that dye liquid crystal and interval insulant mix the liquid crystal layer that constitutes between substrate A and the B, and the sealing frame need add particle diameter and be a bit larger tham interval insulant and conducting sphere in the sealing frame with the glue sealing of epoxy resin in the glue; The inside surface of substrate B comprises nesa coating ITO and oriented layer, and characteristics of the present invention are: all retes on the described substrate B inside surface all cover whole B substrate fully; Need not form specific pattern, and the realization single layer substrate is drawn the structure of drive electrode.
This structure is through processing dielectric film in specific pattern, transfers to the drive electrode of substrate B through the conducting particles in the O-ring seal and realizes on the substrate A, is specially:
The inside surface of described substrate A comprises SiO
2Film, nesa coating ITO, can print dielectric film and oriented layer; The ITO film of the inside surface of described substrate A is made up of ITO film I and ITO film II, and both at grade; ITO film I is a frame that has a gap substantially, and a feeler I is located to stretch out in one of edge of gap; ITO film II is nested in the ITO film I frame, and stretches out a feeler II from the gap of ITO film I, and ITO film I does not contact with ITO film II integral body; Described TOP film comprise size more than or equal to the rim of ITO film II and less than the TOP film main part I of the outer rim of ITO film I with can feeler I and feeler II blocked on the Width but stretching out the TOP film outshot II that not exclusively blocks on the direction at it; The size of described sealed frame is greater than the inside casing of ITO film I, less than the housing of ITO film I.Conducting sphere is to form the single substrate necessary material that goes between in the epoxy resin.Beneficial effect is: through above-mentioned design, make substrate B behind the various films of sputtering sedimentation, not need other etch processes, can not reduce the reflectivity of catoptron because of etching process, reduce the consumption of soda acid.Only clean through simple, just can printing direction-orienting films, simplified manufacturing process.Make the reflectivity of dark state drop to 10%-13%, near electrochromic anti-glare performance.
Improve as another, the inside surface of described substrate B is followed successively by SiO
2Film, Al film, SiO
2Film and nesa coating, oriented layer.The aluminium film places the inside of substrate B, and uses two-layer SiO
2Sandwich structure protection, its beneficial effect is: can effectively reduce pin hole and take place, prevent the aging of Al film, and make bright attitude reflectivity improve 3-5%.Increase the stickability of aluminium film and substrate, transparency electrode.Improve the reflectivity of catoptron and reduce the liquid crystal layer reflectivity of substrate drive electrode before.And processing step is simple, significantly reduces the cost of anti-dazzle driving mirror, for further popularizing of anti-dazzle driving mirror creates conditions.
Described anti-ion infiltrates SiO
2Film can adopt rf magnetron sputtering equipment to form;
Described Al film can Al as sputtering target material, adopt rf magnetron sputtering equipment to form;
SiO
2When being 150nm～200nm greater than 25nm, Al film thickness, film thickness, can make the aluminium dielectric film obtain to be higher than the reflectivity more than 82% for best.
In order further to improve the performance of the dark attitude of anti-glare vehicle rearview mirror, can be through improving the absorptance of liquid crystal layer, or realize through the reflectivity that reduces front surface.Because the reflected light of front surface does not directly reflect through the absorption of liquid crystal layer.The main cause that causes this phenomenon is that the refractive index difference of ITO and glass is excessive; The present invention is through the printed dielectric film of selective refraction rate 1.7-1.9; The transparency conductive electrode of thickness 25nm～200nm, thickness are the printed dielectric film of 100nm, successfully fall the reflectivity of front surface and lower 4%-6%.
Two-layer transparency conductive electrode is with In
2O
3And SnO
2The ITO pottery of forming adopts rf magnetron sputtering equipment to form as sputtering target; The printable insulating film is to be principal ingredient with alkoxyl silicone and alkoxytitanium, form through letterpress, and hot setting forms.
Liquid crystal layer is to be made up of dye liquid crystal and interval insulant, and between the thickness of liquid crystal layer 3-20 micron, by employed interval insulant decision, as the part of control light intensity, dye liquid crystal is best selection, and it has the reflectivity of very high bright attitude.Move with liquid crystal molecule when dye molecule powers up, realize dark and bright conversion between the two; Its supporting role of interval insulant, the even bright attitude of formation entire emission mirror and dark attitude.When said dichroic dye and liquid crystal compound, its dyestuff accounts for the dye liquid crystal weight ratio and is higher than at 5% o'clock, can realize that high-contrast shows.The kind of its proportioning is following: (1) positivity dyestuff and negative liquid crystal (2) positivity dyestuff and positivity liquid crystal.Alignment films uses commercial material to get final product, and uses SE2170 or SE150 during horizontal alignment, uses SE1211 when vertical orientated.During horizontal alignment, its polymerization process is that polyimide acid forms polyimide after through 250 ° of pyroprocessing, and some material also need carry out friction treatment.
Driving of the present invention is common square-wave signal, and when not powering up, the reflectivity of rearview mirror reaches about 75%, and when powering up, the reflectivity of dark attitude is 10%-13%.
Description of drawings
The present invention has accompanying drawing 4
Fig. 1 is a dye liquid crystal anti-glare vehicle rearview mirror layer structural representation;
Fig. 2 is a TOP film shape synoptic diagram;
Fig. 3 is the shape synoptic diagram of the ITO film of substrate A;
Fig. 4 is the ITO film of TOP film, substrate A and the shape synoptic diagram of sealed frame pattern overlapping.
In the drawings, 1-ITO film I, 2-ITO film II, 3-feeler I, 4-feeler II, 5-TOP film main part I, 6-TOP film outshot II, 7-sealed frame, 8-SiO
2Film, 9-nesa coating (being the ITO film), 10-oriented layer (being the PI film), 11-O-ring seal, 12-substrate B, 13-substrate A, 14-can print dielectric film (being the TOP film), 15-Al film, 16-and seal.
Embodiment
A kind of dye liquid crystal anti-glare vehicle rearview mirror of the present invention; Comprise the substrate A 13 and B 12 overlapping at certain intervals according to the pattern of ITO electrode; And the sealed frame around substrate A13 and the B12 is formed airtight box body; The part at interval is that dye liquid crystal and interval insulant mix the liquid crystal layer 17 that constitutes between substrate A and the B, and the glue sealing of sealing frame 7 usefulness epoxy resins need be added particle diameter and be a bit larger tham interval insulant and conducting sphere in the sealing frame in the glue; The inside surface of substrate B 12 comprises nesa coating ITO 9 and oriented layer 10, and characteristics of the present invention are: all retes on described substrate B 12 inside surfaces all cover whole B substrate fully; Need not form specific pattern, and the realization single layer substrate is drawn the structure of drive electrode.This structure is through processing dielectric film in specific pattern, transfers to the drive electrode of substrate B 12 through the conducting particles in the O-ring seal and realizes on the substrate A 13 that be specially: the inside surface of described substrate A comprises SiO
2Film 8, nesa coating ITO 9, can print dielectric film 14 and oriented layer 10; The ITO film 9 of the inside surface of described substrate A is made up of ITO film I 1 and ITO film II 2, and both at grade; ITO film I 1 is a frame that has a gap substantially, and a feeler I 3 is located to stretch out in one of edge of gap; ITO film II 2 is nested in ITO film I 1 frame, and stretches out a feeler II 4 from the gap of ITO film I 1, and ITO film I 1 does not contact with ITO film II 2 integral body; Described TOP film comprise size more than or equal to the rim of ITO film II 2 and less than the TOP film main part I 5 of the outer rim of ITO film I 1 with can feeler I 3 and feeler II blocked on the Width but stretching out the TOP film outshot II6 that not exclusively blocks on the direction at it; The size of described sealed frame is greater than the inside casing of ITO film I 1, less than the housing of ITO film I 1.Conducting sphere is to form the single substrate necessary material that goes between in the epoxy resin.
The inside surface of described substrate B is followed successively by SiO
2Film, Al film, SiO
2Film and nesa coating, oriented layer.
Described anti-ion infiltrates SiO
2Film can adopt rf magnetron sputtering equipment to form;
Described Al film can Al as sputtering target material, adopt rf magnetron sputtering equipment to form;
SiO
2Film thickness is 150nm～200nm greater than 25nm, Al film thickness.The printed dielectric film of selective refraction rate 1.7-1.9, the transparency conductive electrode of thickness 25nm～200nm, thickness are the printed dielectric film of 100nm, successfully fall the reflectivity of front surface and lower 4%-6%.Two-layer transparency conductive electrode is with In
2O
3And SnO
2The ITO pottery of forming adopts rf magnetron sputtering equipment to form as sputtering target; The printable insulating film is to be principal ingredient with alkoxyl silicone and alkoxytitanium, form through letterpress, and hot setting forms; Liquid crystal layer is to be made up of dye liquid crystal and interval insulant, and between the thickness of liquid crystal layer 3-20 micron, by employed interval insulant decision, as the part of control light intensity, dye liquid crystal is best selection, and it has the reflectivity of very high bright attitude.Move with liquid crystal molecule when dye molecule powers up, realize dark and bright conversion between the two; Its supporting role of interval insulant, the even bright attitude of formation entire emission mirror and dark attitude.When said dichroic dye and liquid crystal compound, its dyestuff accounts for the dye liquid crystal weight ratio and is higher than at 5% o'clock, can realize that high-contrast shows.The kind of its proportioning is following: (1) positivity dyestuff and negative liquid crystal (2) positivity dyestuff and positivity liquid crystal.Alignment films uses commercial material to get final product, and uses SE2170 or SE150 during horizontal alignment, uses SE1211 when vertical orientated.During horizontal alignment, its polymerization process is that polyimide acid forms polyimide after through 250 ° of pyroprocessing, and some material also need carry out friction treatment.
Because the use of multilayer insulating film, even the conducting electric current of anti-glare vehicle rearview mirror of the present invention uses dye liquid crystal, every square centimeter power consumption is also less than the 2-3 microwatt.Therefore this kind anti-glare vehicle rearview mirror can satisfy battery powered requirement fully.
Driving of the present invention is common square-wave signal, and when not powering up, the reflectivity of rearview mirror reaches about 75%, and when powering up, the reflectivity of dark attitude is 10%-13%.
Claims (6)
1. dye liquid crystal anti-glare vehicle rearview mirror; Comprise substrate A and the B overlapping at certain intervals according to the pattern of ITO electrode; And the sealed frame around substrate A and the B is formed airtight box body; The part at interval is that dye liquid crystal and interval insulant mix the liquid crystal layer that constitutes between substrate A and the B, and the sealing frame need add particle diameter and be a bit larger tham interval insulant and conducting sphere in the sealing frame with the glue sealing of epoxy resin in the glue; The inside surface of substrate B comprises nesa coating ITO and oriented layer, it is characterized in that:
All retes on the described substrate B inside surface all cover whole B substrate fully;
The inside surface of described substrate A comprises SiO
2Film, nesa coating ITO, can print dielectric film and oriented layer; Can print dielectric film is the TOP film;
The ITO film of the inside surface of described substrate A is made up of ITO film I (1) and ITO film II (2), and both at grade; ITO film I (1) is a frame that has a gap substantially, and a feeler I (3) is located to stretch out in one of edge of gap; ITO film II (2) is nested in ITO film I (1) frame, and stretches out a feeler II (4) from the gap of ITO film I (1), and ITO film I (1) does not contact with ITO film II (2) integral body;
Described TOP film comprises that size is more than or equal to the rim of ITO film II (2) and less than the TOP film main part I (5) of the outer rim of ITO film I (1) with can feeler I (3) and feeler II blocked on the Width but stretch out the TOP film outshot II (6) that not exclusively blocks on the direction at it;
The size of described sealed frame is greater than the inside casing of ITO film I (1), less than the housing of ITO film I (1).
2. dye liquid crystal anti-glare vehicle rearview mirror according to claim 1 is characterized in that:
The inside surface of described substrate B is followed successively by SiO
2Film, Al film, SiO
2Film and nesa coating, oriented layer.
3. according to claim 1 or claim 2 dye liquid crystal anti-glare vehicle rearview mirror is characterized in that:
Described refractive index of printing dielectric film is 1.7-1.9, and conductive electrode thickness 25nm～200nm, can to print insulator film thickness be 100nm.
4. according to claim 1 or claim 2 dye liquid crystal anti-glare vehicle rearview mirror is characterized in that: SiO
2Film thickness is 150nm～200nm greater than 25nm, Al film thickness.
5. according to claim 1 or claim 2 dye liquid crystal anti-glare vehicle rearview mirror is characterized in that: thickness of liquid crystal layer 3-20 micron.
6. according to claim 1 or claim 2 dye liquid crystal anti-glare vehicle rearview mirror, it is characterized in that: described dyestuff is a dichroic dye, and the weight ratio that its dyestuff accounts for the dye solution crystal layer is higher than 5%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100101019A CN101738777B (en) | 2010-01-11 | 2010-01-11 | Dye liquid crystal anti-glare vehicle rearview mirror |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100101019A CN101738777B (en) | 2010-01-11 | 2010-01-11 | Dye liquid crystal anti-glare vehicle rearview mirror |
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| CN101738777A CN101738777A (en) | 2010-06-16 |
| CN101738777B true CN101738777B (en) | 2012-02-29 |
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|---|---|---|---|---|
| CN102331643A (en) * | 2011-06-14 | 2012-01-25 | 大连东方科脉电子有限公司 | Single-polarizer liquid crystal dimming automotive rearview mirror |
| CN103499889B (en) * | 2013-10-15 | 2016-01-13 | 大连东方科脉电子有限公司 | A kind of automatic anti-glare glasses and manufacture method thereof |
| CN105242418A (en) * | 2015-10-30 | 2016-01-13 | 唐楷 | Anti-dazzling mirror sheet and manufacturing method thereof |
| JP6560610B2 (en) * | 2015-12-18 | 2019-08-14 | 株式会社ジャパンディスプレイ | Display device |
| CN106773374A (en) * | 2017-01-09 | 2017-05-31 | 华南师范大学 | A kind of dimming glass of patterning and preparation method thereof |
| CN106926673A (en) * | 2017-02-24 | 2017-07-07 | 唐楷 | A kind of anti-dazzle keevil and preparation method thereof |
| CN108487494B (en) * | 2018-03-27 | 2020-12-04 | 京东方科技集团股份有限公司 | Variable-reflectivity wall unit, wall assembly and intelligent building outer wall system |
| CN109278649B (en) * | 2018-06-08 | 2020-08-25 | 惠州市德赛西威汽车电子股份有限公司 | Automatic anti-dazzle automobile electronic rearview mirror |
| CN111812876A (en) * | 2020-08-11 | 2020-10-23 | 苏州萃为智能科技有限公司 | Frameless anti-dazzle rearview mirror and manufacturing method thereof |
| CN114063303B (en) * | 2021-11-05 | 2023-06-30 | Oppo广东移动通信有限公司 | Lens, AR glasses and AR system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2234380Y (en) * | 1995-11-21 | 1996-09-04 | 戴财丁 | Automatic antidazzling light-sensitive device of improved rear-view mirror for car |
-
2010
- 2010-01-11 CN CN2010100101019A patent/CN101738777B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2234380Y (en) * | 1995-11-21 | 1996-09-04 | 戴财丁 | Automatic antidazzling light-sensitive device of improved rear-view mirror for car |
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| Publication number | Publication date |
|---|---|
| CN101738777A (en) | 2010-06-16 |
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Denomination of invention: Dye liquid crystal anti-glare vehicle rearview mirror Effective date of registration: 20200228 Granted publication date: 20120229 Pledgee: Agricultural Bank of China, Limited by Share Ltd, Jiashan county subbranch Pledgor: Zhejiang Fu Shen Technology Co., Ltd. Registration number: Y2020330000068 |
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