CN201373963Y - Light adjusting film - Google Patents
Light adjusting film Download PDFInfo
- Publication number
- CN201373963Y CN201373963Y CN200820235747U CN200820235747U CN201373963Y CN 201373963 Y CN201373963 Y CN 201373963Y CN 200820235747 U CN200820235747 U CN 200820235747U CN 200820235747 U CN200820235747 U CN 200820235747U CN 201373963 Y CN201373963 Y CN 201373963Y
- Authority
- CN
- China
- Prior art keywords
- layer
- liquid crystal
- transparent
- color
- light modulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
The utility model relates to a light adjusting film, which sequentially comprises a transparent substrate layer 21, a conducting layer 22, a polymer scattering liquid crystal layer 23, a conducting layer 22, a transparent substrate layer 21 and a transparent colorful material layer 1, and the colors of the polymer scattering liquid crystal layer and the transparent colorful material layer are different. The color of the light adjusting film is changed before and after being electrified. The light adjusting film is suitable for places or products having higher requirement on the color change.
Description
Technical field
The utility model relates to a kind of light modulation film.
Background technology
The light modulation film is meant the adjustable a kind of film of the transmittance of film, generally is applicable to the light requirement than higher place, as automotive window pad pasting etc.
Existing light modulation film is generally automatically controlled polymer dispersed liquid-crystal film, electrochromic layer, the assembly that temperature induced color changing hydrogel layer etc. can light modulation.
Wherein, Polymer Dispersed Liquid Crystal (Polymer Dispersed Liquid Crystal is called for short PDLC) film is a kind of liquid crystal functional film material that optimum is used for the light modulation film, is used in a large number in the middle of the business-like product.The PDLC membraneous material has not to be needed between polaroid, two substrates apart from not needing strict control, substrate inside surface not to need advantages such as orientation process, be applicable to quality is required soft occasion, as places such as softening agent crystal display, automotive window pad pasting, screen, curtain, PDLC preparation simultaneously is simple, is applicable to large-scale industrial production.
In the PDLC film, the liquid crystal droplet of micron dimension is dispersed in the solid polymer matrix.By extra electric field the PDLC film is changed by opaque to transparent, make the transmittance of film adjustable, therefore, be used for the light modulation film in a large number.
The color that general Polymer Dispersed Liquid Crystal presents is that the color of liquid crystal is a milky, in the middle of the preparation of existing polymer dispersed liquid-crystal film, generally in the starting material of Polymer Dispersed Liquid Crystal, add pigment, make in the polymkeric substance after dyestuff is scattered in curing, thereby make polymer dispersed liquid-crystal film present colorful color.
Existing P DLC film is during as the light modulation film, during the automotive window pad pasting, when not switching on, from the both sides of vehicle window, all is colors of opaque polymer liquid crystal for example, and as opaque blueness, during energising, the vehicle window color becomes transparent blueness.The vehicle window color is single before and after the energising.
Summary of the invention
The technical problems to be solved in the utility model is to be to provide before and after a kind of energising the light modulation film that color changes.
A kind of light modulation film comprises transparent substrate layer 21, conductive layer 22, polymer dispersed liquid crystal layer 23, conductive layer 22, transparent substrate layer 21, transparent color material layer 1 successively, and the color of polymer dispersed liquid crystal layer and transparent color material layer is inequality.
Under off-position, what a side of light modulation film was seen is the color of polymer dispersed liquid crystal layer, and what see from corresponding opposite side with it is the color of transparent color material layer.Under the energising situation, polymer dispersed liquid crystal layer becomes transparent, the transparent color material layer itself is exactly transparent, therefore, what see from the both sides of light modulation film is a kind of color, and promptly the two sides sees all are the third colors after the color of the color of polymer dispersed liquid crystal layer and transparent color material layer superposes.
The color of light modulation film of the present invention before and after energising changes.Be applicable to change color is required than on the higher place or product.
Description of drawings
Fig. 1 is the structural representation of PDLC film of the prior art;
Fig. 2 is a kind of structural representation of light modulation film of the present utility model.
Embodiment
A kind of light modulation film comprises transparent substrate layer, conductive layer, polymer dispersed liquid crystal layer, conductive layer, transparent substrate layer, transparent color material layer successively, and the color of polymer dispersed liquid crystal layer and transparent color material layer is inequality.
Shown in the accompanying drawing 1 is the structural representation of PDLC film of the prior art; Wherein, 21 is transparent substrate layer, 22 is conductive layer, 23 is polymer dispersed liquid crystal layer, incident light 3 is through the diffuse reflection on transparent base surface, part diffuse light 4 does not pass the PDLC film, and the emergent light 5 that transmits the PDLC film decreases than the light intensity of incident light 3, and the light intensity ratio of the light intensity of emergent light 5 and incident light 3 is the transmittance of PDLC film.
Accompanying drawing 2 is a kind of structural representation of light modulation film of the present utility model; Wherein, 2 is transparent substrate layer 21, conductive layer 22, polymer dispersed liquid crystal layer 23, conductive layer 22, transparent substrate layer 21, translucent adhesive layer 6, transparent color material layer 1.Wherein, whether translucent adhesive layer 6 can design according to the material of transparent color material layer and exist, if the transparent color material layer selects for use is transparent color coating, can be painted on the transparent substrate layer, then need not translucent adhesive layer 6.
Simultaneously, by the color of control transparent color material layer, can reach the purpose of the OFF state transmitance of further reduction light modulation film.Described OFF state transmitance is that those skilled in the art is known, and under the situation of closing electric field, the transmittance of light modulation film is the OFF state transmitance.Relative therewith, be the ON state transmitance, promptly to open under the situation of electric field, the transmittance of light modulation film is the ON state transmitance.The numerical value of the OFF state transmitance of light modulation film is lower if desired, and it is the lower color of transmittance more deeply that the color of transparent color material layer can be selected.
Described transparent substrate layer is the known transparent substrate layer of those skilled in the art, mainly plays a part to support, and is commercially available.As transparent glass layer, clear polycarbonate (PC), transparent polyethylene terephthalate (PET) etc.
Described conductive layer is a conductive layer well known in the art, can directly be plated on the transparent substrate layer, and such as commercially available nano indium tin metal conductive oxide layer, product is worked to light in the energising back.
Described polymer dispersed liquid crystal layer mainly comprises Polymer Dispersed Liquid Crystal, comprises polymkeric substance and the liquid crystal droplet that is scattered in the polymkeric substance, and described polymkeric substance obtains this polymkeric substance by the potpourri of polymer monomer, crosslinking chemical, light trigger etc. through curing.Described polymer monomer, crosslinking chemical, light trigger etc. are the required material of the known various preparation Polymer Dispersed Liquid Crystal of technician in Polymer Dispersed Liquid Crystal field.
For example, ultraviolet initiator is a kind of in 2-hydroxy-2-methyl-1-phenylacetone, 1-hydroxy cyclohexyl phenylketone, 2-methyl 1-(4-sulfydryl phenyl)-2-morpholine-1-acetone and 2-benzyl-2-dimethylamino-1-(4-morpholine the benzyl)-1-butanone.
The general color of liquid crystal under OFF state is milky, and other color needs to add dyestuff in the middle of the preparation of polymer dispersed liquid crystal layer if desired.Can select the color of the dyestuff that adds as required.Described dyestuff is the known various dyestuffs that are applicable to liquid crystal of those skilled in the art, as dyestuffs such as solvent blue (N) or direct indigo plants.
Described color is the implication of the known color of those skilled in the art, and color can be divided into achromaticity and colored two big classes, and color is achromaticity and colored general name.Achromaticity refers to white, the grey that black is different with the various depths.White, grey, black object do not have selectivity to the reflection of each wavelength of spectrum, and they are muted colors.Reflection has selectivity they occur colour under white light so color body is to each wavelength of spectrum, as seven coloured silks such as red, yellow, indigo plants.Colour in the transparent color material layer is that above-mentioned reflection has selectivity and the colour that presents to each wavelength of spectrum, and is transparent as long as described transparent color material layer satisfies, and has colored getting final product simultaneously.Described colour can be selected as required.
Described transparent color material layer is transparent color dope layer or transparent color glassy layer.Described is that the known transparent color coating of those skilled in the art forms the transparent color dope layer of transparent color coating through spraying or coating formation.
Also comprise the translucent adhesive layer between transparent substrate layer, the transparent color material layer, the translucent adhesive layer is used for bonding transparent substrate layer and transparent color material layer.When the transparent color material layer was selected transparent color film or transparent color glass, needing increased the translucent adhesive layer between the bright substrate layer in saturating field, transparent color material layer.The described translucent adhesive layer adhesive layer that the cementing agent of transparent substrate layer, transparent color material layer constitutes that can be used for boning for those skilled in the art is known is as optical cement.
Preferably, the ON state transmitance of described polymer dispersed liquid crystal layer is more than or equal to 85%.
Preferably, the transmittance of described transparent color material layer is more than or equal to 90%.
The thickness of described polymer dispersed liquid crystal layer is the 10-100 micron.Described polymer dispersed liquid crystal layer contains polymkeric substance, liquid crystal, contains or do not contain dyestuff, contain or do not contain introns, and described introns are used for the stilt of liquid crystal spatial at interval for those skilled in the art is known, as glass microballoon.The thickness of described polymer dispersed liquid crystal layer is by the thickness decision of introns.
Described polymkeric substance, liquid crystal, dyestuff are the known starting material that are used to prepare Polymer Dispersed Liquid Crystal of the technician in polymer liquid crystal film field.Liquid crystal, dyestuff are dissolved in and form potpourri in the polymer monomer, and during this mixture solidified, liquid crystal is separated from potpourri, form in the polymkeric substance after liquid crystal droplet is dispersed in curing, obtain polymer dispersed liquid crystal layer.
Polymkeric substance is cured by polymer monomer and obtains, and polymer monomer can be esters of acrylic acid, vinyl ethers etc.Described liquid crystal can be for the liquid crystal of one-component, also can be mixed liquid crystal such as E7 etc.General selection is identical or close with the refractive index of polymkeric substance, and transmittance is bigger like this.Described dyestuff is preferably oil-soluble colour developing raw material.
Below by embodiment the present invention is further elaborated.
Embodiment one:
Blue dyes 0.01g (solvent blue N, Chemical Reagent Co., Ltd., Sinopharm Group), polyblend 1.2g (methyl methacrylate mixes according to 1: 1 ratio with 1,6 hexanediol diacrylate HDDA weight percentage), mixed liquid crystal E7 (Daily polymer Corp.) 1.8g, light trigger 0.03g, two 100*60mm of ito glass, glassy yelloe glass 100*60mm (transmittance is 90%), optical cement.Blue dyes, polyblend, mixed liquid crystal E7 and light trigger are added in the 10ml test tube, and setting magnetic force heated and stirred actuator temperature is 80 ℃, adds magnetic stir bar in test tube, and mixed liquor is stirred intensification.Measure constant temperature 10min behind the mixeding liquid temperature to 80 ℃.Mixed liquor is coated between two ito glasses, and mixed liquor contacts with that face that ito glass has ITO, and uviol lamp is cured 5min to it.An amount of optical cement of coating on arbitrary ito glass and the corresponding surface of ITO layer carries out the applying of glassy yelloe glass, ultraviolet light polymerization 3min then.Obtain light modulation film A1.
Embodiment two:
With embodiment 1, distinctive points is polyblend 0.9g, liquid crystal mixture 2.1g.Obtain light modulation film A2.
Embodiment three:
With embodiment 1, distinctive points is polyblend 0.6g, liquid crystal mixture 2.4g.Obtain light modulation film A3.
Embodiment four:
Get two ito glasses, ito surface is made liquid crystal cell relatively in advance, and its box is thick to be controlled with the introns glass microballoon.The mixed liquor that will be heated to constant temperature 10min after 80 ℃ by the raw material ratio of embodiment three slowly infilters in the prior done liquid crystal cell then.Solidify 5min after all infiltration finishes under uviol lamp, an amount of optical cement of coating carries out the applying of glassy yelloe glass, ultraviolet light polymerization 3min on the one side in office then.Obtain light modulation film A4.
Comparative Examples one:
With embodiment 1, distinctive points is not carry out the applying of transparent color glass.
Obtain light modulation film D1.
Transmission measurement:
The liquid crystal comprehensive parameters instrument that Changchun joins the LCT-5016C model that sincere Instr Ltd. produces is exchanged the transmitance of optical thin film and is tested.
The ON state color
Adopt visual inspection.
Test result is as shown in table 1:
Table 1
| The OFF state transmitance | The ON state transmitance | The ON state color | |
| Embodiment one | 3.4％ | 88.5％ | Light green |
| Embodiment two | 4.1％ | 90.2％ | Light green |
| Embodiment three | 2.5％ | 89.6％ | Light green |
| Embodiment four | 3.2％ | 92.1％ | Light green |
| Comparative Examples one | 6.4％ | 93.8％ | Light blue |
Under off-position, the side of light modulation film A1-A4 is seen is that the color of polymer dispersed liquid crystal layer is promptly blue, and what see from corresponding opposite side with it is the color of transparent color material layer, i.e. the yellow of glassy yelloe glass.Under the energising situation, polymer dispersed liquid crystal layer becomes transparent, the transparent color material layer itself is exactly transparent, therefore, what see from the both sides of light modulation film is a kind of color, and promptly the two sides sees all are the third light greens after the color of the color of polymer dispersed liquid crystal layer and transparent color material layer superposes.
And what see before and after the Comparative Examples energising is a kind of color, i.e. the color blue of dyestuff.
Claims (5)
1, a kind of light modulation film, comprise transparent substrate layer (21), conductive layer (22), polymer dispersed liquid crystal layer (23), conductive layer (22), transparent substrate layer (21) successively, it is characterized in that, transparent substrate layer (21) is outer also to comprise transparent color material layer (1), and the color of polymer dispersed liquid crystal layer and transparent color material layer is inequality.
2, light modulation film according to claim 1 is characterized in that: also comprise translucent adhesive layer (6) between transparent substrate layer, the transparent color material layer.
3, light modulation film according to claim 1 is characterized in that: described transparent color material layer is transparent color dope layer or transparent color glassy layer.
4, light modulation film according to claim 1 is characterized in that: the ON state transmitance of described polymer dispersed liquid crystal layer is more than or equal to 85%.
5, light modulation film according to claim 1, it is characterized in that: the transmittance of described transparent color material layer is more than or equal to 90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820235747U CN201373963Y (en) | 2008-12-25 | 2008-12-25 | Light adjusting film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820235747U CN201373963Y (en) | 2008-12-25 | 2008-12-25 | Light adjusting film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201373963Y true CN201373963Y (en) | 2009-12-30 |
Family
ID=41500046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200820235747U Expired - Lifetime CN201373963Y (en) | 2008-12-25 | 2008-12-25 | Light adjusting film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201373963Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924710A (en) * | 2015-06-16 | 2015-09-23 | 悉地（北京）国际建筑设计顾问有限公司 | Film with adjustable transparency |
| CN105183046A (en) * | 2015-08-12 | 2015-12-23 | 安庆市光明禽业有限责任公司 | Remotely controlled poultry culture apparatus |
| CN106226939A (en) * | 2016-08-09 | 2016-12-14 | 广州市华惠材料科技有限公司 | A kind of colored light modulation film and preparation method thereof |
| CN106597702A (en) * | 2016-12-09 | 2017-04-26 | 明基材料有限公司 | Manufacturing method for liquid crystal device, and liquid crystal device manufactured by same |
| CN110133869A (en) * | 2019-05-31 | 2019-08-16 | 京东方科技集团股份有限公司 | Dim eyeglass and preparation method thereof and dimming glasses |
| CN113534527A (en) * | 2021-07-28 | 2021-10-22 | 东莞市晶博光电股份有限公司 | Variable double-color module adjusted through liquid crystal microspheres and preparation process thereof |
| WO2022179244A1 (en) * | 2021-02-24 | 2022-09-01 | Oppo广东移动通信有限公司 | Color-changing film, housing assembly, and electronic device |
-
2008
- 2008-12-25 CN CN200820235747U patent/CN201373963Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924710A (en) * | 2015-06-16 | 2015-09-23 | 悉地（北京）国际建筑设计顾问有限公司 | Film with adjustable transparency |
| CN105183046A (en) * | 2015-08-12 | 2015-12-23 | 安庆市光明禽业有限责任公司 | Remotely controlled poultry culture apparatus |
| CN106226939A (en) * | 2016-08-09 | 2016-12-14 | 广州市华惠材料科技有限公司 | A kind of colored light modulation film and preparation method thereof |
| CN106597702A (en) * | 2016-12-09 | 2017-04-26 | 明基材料有限公司 | Manufacturing method for liquid crystal device, and liquid crystal device manufactured by same |
| CN110133869A (en) * | 2019-05-31 | 2019-08-16 | 京东方科技集团股份有限公司 | Dim eyeglass and preparation method thereof and dimming glasses |
| WO2022179244A1 (en) * | 2021-02-24 | 2022-09-01 | Oppo广东移动通信有限公司 | Color-changing film, housing assembly, and electronic device |
| CN113534527A (en) * | 2021-07-28 | 2021-10-22 | 东莞市晶博光电股份有限公司 | Variable double-color module adjusted through liquid crystal microspheres and preparation process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201373963Y (en) | Light adjusting film | |
| CN101526687B (en) | Liquid crystal display device | |
| CN102749750B (en) | Flexible transparent LCD (Liquid Crystal Display) device and preparation method thereof | |
| WO2014109564A1 (en) | High refractive index glass bead with high retroreflectivity, and method of preparing the same | |
| CN106019681A (en) | Transparent liquid crystal display device and manufacturing method thereof | |
| CN102707481B (en) | Display panels and preparation method thereof, liquid crystal display | |
| CN104360526A (en) | Electric control dimming film | |
| CN104035151B (en) | A kind of flexible optical diffusion barrier and preparation method thereof | |
| CN204855992U (en) | Liquid crystal display module and liquid crystal disply device | |
| CN108594509A (en) | A kind of wide warm light modulation film and preparation method thereof | |
| CN103412356A (en) | Optical diffusion film and preparation method of optical diffusion film | |
| CN107065305A (en) | Backlight module, display module and display device | |
| CN100416371C (en) | Color filter and liquid crystal display device provided with same | |
| US20030160923A1 (en) | Full color cholesteric displays employing cholesteric color filter | |
| JPS6366542A (en) | Fluorescent colored capsuled liquid crystal apparatus using intensified scattering | |
| CN103885233A (en) | Method for preparing color polymer dispersed liquid crystal films | |
| CN106632883A (en) | Preparation method for intelligent display film with switchable visual angle | |
| CN103858027A (en) | Color filter and display device comprising same | |
| CN202904168U (en) | Color film substrate, liquid crystal panel and liquid crystal display device | |
| CN102604034B (en) | Urethane acrylate intermediate of adhesive for bonding touch screen and preparation method thereof | |
| CN110501830A (en) | A kind of preparation method of bistable state dyestuff doping type liquid crystal film | |
| CN102898889B (en) | UV-curable light-guide printing ink and light-guide plate employing the printing ink | |
| CN102080809B (en) | Optical plastic sheet and manufacturing method thereof | |
| CN102558792A (en) | PET (Polyethylene terephthalate) base material used for filter membrane, preparation method as well as filter membrane and display screen comprising PET base material | |
| CN208324897U (en) | Automobile instrument panel segment encode screen colour display device and color film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091230 |