CN106125386A - Polymer dispersed liquid-crystal film and preparation and control method, display floater and device - Google Patents
Polymer dispersed liquid-crystal film and preparation and control method, display floater and device Download PDFInfo
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- CN106125386A CN106125386A CN201610480262.1A CN201610480262A CN106125386A CN 106125386 A CN106125386 A CN 106125386A CN 201610480262 A CN201610480262 A CN 201610480262A CN 106125386 A CN106125386 A CN 106125386A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/22—Di-epoxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
- C09K19/54—Additives having no specific mesophase characterised by their chemical composition
- C09K19/542—Macromolecular compounds
- C09K19/544—Macromolecular compounds as dispersing or encapsulating medium around the liquid crystal
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Abstract
The present invention provides a kind of polymer dispersed liquid-crystal film and preparation and control method, display floater and device, belongs to Display Technique field, and it can solve existing PDLC thin film and be unable to maintain that after removing the electric field being applied on PDLC thin film it is the problem of present condition.The polymer dispersed liquid-crystal film of the present invention, including: smectic liquid crystal and epoxide resin polymer, described epoxide resin polymer includes that ion, described smectic liquid crystal are dispersed in described epoxide resin polymer.
Description
Technical field
The invention belongs to Display Technique field, be specifically related to a kind of polymer dispersed liquid-crystal film and preparation and controlling party
Method, display floater and device.
Background technology
At present, PDLC (Polymer Dispersed Liquid Crystal, PDLC) thin film is to have
The liquid crystal droplet having birefringence is dispersed in continuous print polymeric matrix the composite formed.
PDLC thin film can be applicable in display device, when PDLC thin film not being applied electric field, PDLC
Director random distribution, owing to light is not mated with by the refractive index of polymeric matrix by the effective refractive index of liquid crystal droplet,
There is multiple reflections and refraction in light on the interface of liquid crystal and polymer, the strong scatter incident light of PDLC thin film and being creamy white
Opaque state；When PDLC thin film is applied sufficiently strong electric field, the director of liquid crystal droplet arranges along direction of an electric field, if
The ordinary index of refraction of the liquid crystal selected and the refractive index match of polymer, light is directed through PDLC thin film, and presents clear state；
Removing the electric field applied, liquid crystal particle returns to again initial scattering state, i.e. in opaque under the effect of base elastomer energy
State.That is, although it is controlled that PDLC thin film can realize state, but its pellucidity need apply electric field could maintain.
Summary of the invention
It is contemplated that at least solve one of technical problem present in prior art, it is proposed that one can be executed in removing
Remain to after being added in the electric field on PDLC thin film to maintain its be the polymer dispersed liquid-crystal film of present condition and preparation and control method,
Display floater and device.
Solve the technology of the present invention problem and be employed technical scheme comprise that a kind of polymer dispersed liquid-crystal film, including: smectic
Phase liquid crystal and epoxide resin polymer, it is described that described epoxide resin polymer includes that ion, described smectic liquid crystal are dispersed in
In epoxide resin polymer.
Wherein, described epoxide resin polymer is glycidyl ether type epoxy resinous polymer.
Wherein, described epoxide resin polymer is polymerized in the presence of light trigger and light radiation by epoxy monomer
Reaction generates.
Wherein, described light trigger includes diaryl group iodized salt and triaryl sulfonium salts.
Wherein, the mass percent of described smectic liquid crystal, described epoxy monomer and described light trigger is:
Smectic liquid crystal 40～80wt%；
Epoxy monomer 29～60wt%；
Light trigger 1～10wt%.
Wherein, described polymer dispersed liquid-crystal film also includes: the first flexible substrates being oppositely arranged and the second flexible base
The end, it is positioned at described first flexible substrates and near the first conductive layer of the side of described second flexible substrates and is positioned at described second soft
The property substrate the second conductive layer near the side of described first flexible substrates, described epoxide resin polymer and described smectic phase liquid
Brilliant between described first conductive layer and described second conductive layer.
As another technical scheme, the present invention also provides for the preparation method of a kind of polymer dispersed liquid-crystal film, described poly-
Compound dispersed liquid-crystal film is the polymer dispersed liquid-crystal film described in above-mentioned any one, and described preparation method includes:
Smectic liquid crystal and epoxy monomer are mixed；
The polymerization of described epoxy monomer generates epoxide resin polymer；
Wherein, described epoxide resin polymer includes that ion, described smectic liquid crystal are dispersed in described epoxy resin and gather
In compound.
Wherein, described smectic liquid crystal and epoxy monomer mixing includes:
Smectic liquid crystal, epoxy monomer and light trigger are mixed；
The polymerization of described epoxy monomer generates epoxide resin polymer and includes:
Epoxy monomer occurs polyreaction to generate epoxide resin polymer in the presence of light trigger and light radiation.
Wherein, described epoxy monomer occurs polyreaction to generate epoxy resin in the presence of light trigger and light radiation
The reaction temperature of polymer is 20～60 DEG C, and the light radiation time is 15～80min.
As another technical scheme, the present invention also provides for the control method of a kind of polymer dispersed liquid-crystal film, including:
Clear state controls the stage: apply DC electric field or high-frequency electric field to described polymer dispersed liquid-crystal film, described poly-
The transparent state of compound dispersed liquid-crystal film；
Removing described DC electric field or high-frequency electric field, described polymer dispersed liquid-crystal film maintains described clear state；
Nontransparent state controls the stage: apply low-frequency current field to described polymer dispersed liquid-crystal film, and described polymer disperses
Liquid crystal film is nontransparent state；
Removing described low-frequency current field, described polymer dispersed liquid-crystal film maintains described nontransparent state.
As another technical scheme, the present invention also provides for a kind of display floater, including: the polymerization described in above-mentioned any one
Thing dispersed liquid-crystal film.
As another technical scheme, the present invention also provides for a kind of display device, including: above-mentioned display floater.
In the polymer dispersed liquid-crystal film of the present invention and preparation and control method, display floater and device, this polymer
Dispersed liquid-crystal film includes: smectic liquid crystal and epoxide resin polymer, and epoxide resin polymer includes ion, smectic phase liquid
Crystalline substance is dispersed in epoxide resin polymer, owing to smectic liquid crystal has phase relative to nematic liquid crystal commonly used in the prior art
To higher viscosity, and epoxide resin polymer includes ion, by by smectic phase dispersed liquid crystal at epoxide resin polymer
In, can be after terminate polymer dispersed liquid-crystal film is energized, when making polymer dispersed liquid-crystal film still maintain energising
State, maintains without external force, thus realizes two-state control, and then reaches energy-conservation purpose.
The polymer dispersed liquid-crystal film of the present invention can be used in Flexible Displays, intelligent glass and association area thereof.
Accompanying drawing explanation
Fig. 1 is the structural representation of the polymer dispersed liquid-crystal film of embodiments of the invention 1；
Fig. 2 is the polymerization process figure of the epoxide resin polymer of Fig. 1；
Fig. 3 is the schematic flow sheet of the preparation method of the polymer dispersed liquid-crystal film of embodiments of the invention 2；
Fig. 4 is the polymer of a kind of state of the control method of the polymer dispersed liquid-crystal film of embodiments of the invention 3
The schematic diagram of dispersed liquid-crystal film；
Fig. 5 is the polymerization of the another kind of state of the control method of the polymer dispersed liquid-crystal film of embodiments of the invention 3
The schematic diagram of thing dispersed liquid-crystal film；
Fig. 6 is that the PDLC of the control method of the polymer dispersed liquid-crystal film of embodiments of the invention 3 is thin
Voltage-the transmittance curve of film；
Wherein, reference is: 1, smectic liquid crystal；2, epoxide resin polymer；3, the first flexible substrates；4, second is soft
Property substrate；5, the first conductive layer；6, the second conductive layer.
Detailed description of the invention
For making those skilled in the art be more fully understood that technical scheme, below in conjunction with the accompanying drawings and specific embodiment party
The present invention is described in further detail by formula.
Embodiment 1:
Refer to Fig. 1, the present embodiment provides a kind of polymer dispersed liquid-crystal film, including: smectic liquid crystal 1 and asphalt mixtures modified by epoxy resin
Lipopolymer 2, epoxide resin polymer 2 includes that ion, smectic liquid crystal 1 are dispersed in epoxide resin polymer 2.
Wherein, polymer dispersed liquid-crystal film also includes: the first flexible substrates 3 being oppositely arranged and the second flexible substrates 4,
Near the first conductive layer 5 of the side of the second flexible substrates 4 and to be positioned at the second flexible substrates 4 close to be positioned at the first flexible substrates 3
Second conductive layer 6 of the side of the first flexible substrates 3, epoxide resin polymer 2 and smectic liquid crystal 1 are positioned at the first conductive layer 5
With second between conductive layer 6.
From figure 1 it appears that the first flexible substrates 3 and the second flexible substrates 4 are oppositely arranged, in the first flexible substrates 3
Being respectively arranged with the first conductive layer 5 and the second conductive layer 6 with the inner side of the second flexible substrates 4, the i.e. first conductive layer 5 and second is led
Electric layer 6 is also oppositely arranged, and epoxide resin polymer 2 and smectic liquid crystal 1 are positioned at the first conductive layer 5 and the second conductive layer 6
Between, therefore, when polymer dispersed liquid-crystal film is applied voltage, the charged ion in epoxide resin polymer 2 and smectic
Phase liquid crystal 1 can move between the first conductive layer 5 and the second conductive layer 6 according to the type of the voltage applied.
Why epoxide resin polymer 2 and smectic liquid crystal 1 are set between the first conductive layer 5 and the second conductive layer 6,
It is (to be able to maintain that owing to smectic liquid crystal 1 has relatively high viscosity relative to nematic liquid crystal commonly used in the prior art
A certain state), and epoxide resin polymer 2 includes ion (can move under electric field action), by by smectic liquid crystal 1
It is dispersed in epoxide resin polymer 2, PDLC can be made after terminating polymer dispersed liquid-crystal film is energized
Thin film still maintains state during energising, maintains without external force.
It should be noted that the first flexible substrates 3 and the second flexible substrates 4 use polyethylene terephthalate
(PET), polyimides (PI) or PEN (PEN) make, the first conductive layer 5 and the second conductive layer 6 can be adopted
Make with ITO or IZO.Certainly, the material of preparation two sheets of flexible substrate and two conductive layers does not limit to and this, it is also possible to use
Other materials is prepared, and does not repeats them here.
Wherein, epoxide resin polymer 2 is glycidyl ether type epoxy resinous polymer.
Why it is arranged such, is the glycidyl ether type epoxy owing to generating glycidyl ether type epoxy resinous polymer
The polymerization speed of resin monomer is relatively fast, and polymerization is good, and glycidyl ether type epoxy resin monomer and smectic liquid crystal 1
Dissolubility is good before the reaction.
Wherein, epoxide resin polymer 2 is occurred polymerization anti-by epoxy monomer in the presence of light trigger and light radiation
Should generate.
In the prior art, generally use the mode of heat cure to prepare epoxide resin polymer, in this case, generate
Epoxide resin polymer in do not deposit in the course of the polymerization process remaining ion；And the mode that the present embodiment uses photopolymerization prepares ring
Epoxy resins polymer, in this case, the epoxide resin polymer 2 of generation can remain in polymerization process generate from
Son.Owing to epoxide resin polymer 2 there are ion, therefore, when polymer dispersed liquid-crystal film is applied voltage, epoxy
In resinous polymer 2, the molecule of band different ions can be under electric field action, between the first conductive layer 5 and the second conductive layer 6
Smectic liquid crystal 1 moves, so that polymer dispersed liquid-crystal film presents different conditions and removing after this electric field still
Maintain this state.
Wherein, light trigger includes diaryl group iodized salt and triaryl sulfonium salts.
The light trigger that the present embodiment uses is cation light initiator, and it can cause epoxy resin by ultraviolet radiation
Monomer generation polymerization crosslinking, when polymerization was complete, has some ions to remain in PDLC thin film, and these ions cause smectic phase liquid
Brilliant dynamic scattering performance realizes smectic phase PDLC film transmission state (applying direct current or high-frequency electric field) and scattering states (applies low frequency
Electric field) between conversion.Certainly, the type of light trigger is not limited thereto, it is also possible to use other kinds of light trigger,
As long as epoxy monomer generation cationic polymerization can be made to generate epoxide resin polymer 2, do not repeat them here.
Wherein, the mass percent of smectic liquid crystal 1, epoxy monomer and light trigger is:
Smectic liquid crystal 40～80wt%；
Epoxy monomer 29～60wt%；
Light trigger 1～10wt%.
Why select aforementioned proportion to be prepared, be the polymer dispersed liquid-crystal film owing to preparing with this ratio, no
Need too high voltage can change its state, accordingly, it is capable to access suitable driving voltage.Certainly, smectic liquid crystal, epoxy
The mass percent of resin monomer and light trigger is not limited thereto, it is also possible to use other mass percents to be prepared,
Do not repeat them here.
The present embodiment can particularly as follows:
Light trigger is triaryl sulfonium salts (Ar3S+SbF6 -)；
The structure of epoxy monomer is
The polyreaction of epoxide resin polymer 2 can be as shown in Figure 2.
The polymer dispersed liquid-crystal film of the present embodiment, including: smectic liquid crystal 1 and epoxide resin polymer 2, asphalt mixtures modified by epoxy resin
Lipopolymer 2 includes that ion, smectic liquid crystal 1 are dispersed in epoxide resin polymer 2, due to smectic liquid crystal 1 relative to
Nematic liquid crystal commonly used in the prior art has in relatively high viscosity, and epoxide resin polymer 2 poly-containing cation
Close the charged ion produced, by smectic liquid crystal 1 is dispersed in epoxide resin polymer 2, can terminate polymer
After dispersed liquid-crystal film energising, state when making polymer dispersed liquid-crystal film still maintain energising, carry out without external force
Maintain, thus realize two-state control, and then reach energy-conservation purpose.
Embodiment 2:
Refer to Fig. 3, the present embodiment provides the preparation method of a kind of polymer dispersed liquid-crystal film, including:
Step 101, mixes smectic liquid crystal 1 and epoxy monomer.
Specifically, smectic liquid crystal 1, epoxy monomer and light trigger are mixed.
Step 102, epoxy monomer polymerization generates epoxide resin polymer 2；Wherein, epoxide resin polymer 2 wraps
Including ion, smectic liquid crystal 1 is dispersed in epoxide resin polymer 2.
Specifically, epoxy monomer occurs polyreaction generation epoxy resin to gather in the presence of light trigger and light radiation
Compound.
It should be noted that smectic liquid crystal 1, epoxy monomer and light trigger are being mixed according to a certain percentage
After mixture, by modes such as volume to volume (Roll to Roll) or spin coatings, said mixture is placed in the first conductive layer 5 He
Between second conductive layer 6, so that epoxy monomer is polymerized between the first conductive layer 5 and the second conductive layer 6, generate tool
There is the epoxide resin polymer 2 of ion.
Wherein, epoxy monomer occurs polyreaction to generate polymerization of epoxy resins in the presence of light trigger and light radiation
The reaction temperature of thing 2 is 20～60 DEG C, and the light radiation time is 15～80min.
As a rule, can be selected for 365nm, 0.8～25mw/cm2Ultraviolet light, under 20～60 DEG C of environment irradiation 15～
80min, so that photopolymerization reaction completes.Certainly, the response parameter of photopolymerization reaction is not limited thereto, can be according to practical situation
It is adjusted, as long as epoxy monomer polymerization can be made to generate epoxide resin polymer 2, does not repeats them here.
Illustrate with an instantiation below:
Epoxy monomer uses polyethyleneglycol diglycidylether (being called for short EGDE, n ≈ 3.45), and smectic liquid crystal uses
CB class mixed liquid crystal, light trigger uses UVI-6974, according to mass content percentage ratio is:
CB class mixed liquid crystal 60.0wt%；
EGDE 35.0wt%；
UVI-6974 5.0wt%.
Above-mentioned material is mixed in proportion, under the conditions of lucifuge, by the above-mentioned material of mix homogeneously by volume to volume (Roll
To Roll) mode is placed between the first conductive layer 5 and the second conductive layer 6；Under the conditions of 40 DEG C, it is 3mW/ with ultraviolet ray intensity
cm2The ultraviolet light irradiation 30min of 365nm, i.e. can get above-mentioned polymer dispersed liquid-crystal film.The polymer of the present embodiment divides
Dissipate the preparation method of liquid crystal film, for preparing the polymer dispersed liquid-crystal film of embodiment 1, describe in detail and can refer to embodiment
The polymer dispersed liquid-crystal film of 1, does not repeats them here.
The preparation method of the polymer dispersed liquid-crystal film of the present embodiment, for preparing the polymer dispersion liquid of embodiment 1
Brilliant thin film, this polymer dispersed liquid-crystal film includes: smectic liquid crystal 1 and epoxide resin polymer 2, epoxide resin polymer 2
Include that ion, smectic liquid crystal 1 are dispersed in epoxide resin polymer 2, owing to smectic liquid crystal 1 is relative in prior art
Conventional nematic liquid crystal has relatively high viscosity, and epoxide resin polymer 2 includes ion, by by smectic phase liquid
Brilliant 1 is dispersed in epoxide resin polymer 2, polymer can be made to disperse after terminating to be energized polymer dispersed liquid-crystal film
Liquid crystal film still maintains state during energising, maintains without external force, thus realizes two-state control, and then reaches
Energy-conservation purpose.
Embodiment 3:
Refer to Fig. 4 to Fig. 6, the present embodiment provides the control method of a kind of polymer dispersed liquid-crystal film, and polymer divides
Scattered liquid crystal film is the polymer dispersed liquid-crystal film of embodiment 1, and control method includes:
As shown in Figure 4, clear state controls the stage: i.e. when needs polymer dispersed liquid-crystal film is transparent, divide to polymer
Dissipate liquid crystal film and apply DC electric field or high-frequency electric field, the transparent state of polymer dispersed liquid-crystal film；Remove DC electric field or height
Frequently electric field, polymer dispersed liquid-crystal film maintains clear state.
It should be noted that applying DC electric field or during high-frequency electric field, with the epoxide resin polymer 2 of ion at electricity
Move, until epoxide resin polymer 2 is distributed in the first conductive layer to the first conductive layer 5 and/or the second conductive layer 6 under field action
5 and/or second on conductive layer 6 and keep resting state, and now, the director of smectic liquid crystal 1 arranges along direction of an electric field, permissible
Make light (being depicted with arrows in figure) be directed through PDLC thin film, and present clear state；When removing DC electric field or high-frequency electric field,
Owing to smectic liquid crystal 1 has higher viscosity, therefore, it is possible to maintain clear state.
As it is shown in figure 5, nontransparent state controls the stage: i.e. when needs polymer dispersed liquid-crystal film is nontransparent, to polymerization
Thing dispersed liquid-crystal film applies low-frequency current field, and polymer dispersed liquid-crystal film is nontransparent state；Removing low-frequency current field, polymer divides
Dissipate liquid crystal film and maintain nontransparent state.
It should be noted that when applying low-frequency current field, with the epoxide resin polymer 2 of ion under electric field action,
Epoxide resin polymer 2 with ion moves at the first conductive layer 5 and/or the second conductive layer 6, but owing to electric field frequency is slow,
State that be in confusion with the epoxide resin polymer 2 of ion, that always move, now, the director of smectic liquid crystal 1 with
Machine is distributed, and light (being depicted with arrows in figure) occurs multiple reflections on the interface of smectic liquid crystal 1 and epoxide resin polymer 2
And refraction, make the scatter incident light that PDLC thin film is strong, and present milky nontransparent state；When removing low-frequency current field, by
In smectic liquid crystal 1, there is higher viscosity, therefore, it is possible to maintain nontransparent state.
Refer to voltage-transmittance curve that Fig. 6, Fig. 6 are polymer dispersed liquid-crystal film.It should be noted that preparation
Polymer dispersed liquid-crystal film after completing is clear state.It can be seen that polymer dispersed liquid-crystal film is applied
The voltage (i.e. low-frequency voltage) of 20V, 100Hz, it is changed into nontransparent state (scattering states) by clear state, removes its scattering states of voltage
Remain behind；Applying the voltage (i.e. high frequency voltage or DC voltage) of 20V, 10KHz again, it is changed into transmission state by scattering states
(replying original state), removes its transmission state of voltage and remains behind.
The control method of the polymer dispersed liquid-crystal film of the present embodiment, for controlling the polymer dispersion liquid of embodiment 1
Brilliant thin film, describes the polymer dispersed liquid-crystal film that can refer to embodiment 1 in detail, does not repeats them here.
The control method of the polymer dispersed liquid-crystal film of the present embodiment, for controlling the polymer dispersion liquid of embodiment 1
Brilliant thin film, this polymer dispersed liquid-crystal film includes: smectic liquid crystal 1 and epoxide resin polymer 2, epoxide resin polymer 2
Include that ion, smectic liquid crystal 1 are dispersed in epoxide resin polymer 2, owing to smectic liquid crystal 1 is relative in prior art
Conventional nematic liquid crystal has relatively high viscosity, and epoxide resin polymer 2 includes ion, by by smectic phase liquid
Brilliant 1 is dispersed in epoxide resin polymer 2, polymer can be made to disperse after terminating to be energized polymer dispersed liquid-crystal film
Liquid crystal film still maintains state during energising, maintains without external force, thus realizes two-state control, and then reaches
Energy-conservation purpose.
Embodiment 4:
Present embodiments provide a kind of display floater, including: the polymer dispersed liquid-crystal film of embodiment 1.
The display floater of the present embodiment, including the polymer dispersed liquid-crystal film of embodiment 1, this PDLC is thin
Film includes: smectic liquid crystal 1 and epoxide resin polymer 2, and epoxide resin polymer 2 includes that ion, smectic liquid crystal 1 disperse
In epoxide resin polymer 2, owing to smectic liquid crystal 1 has relatively relative to nematic liquid crystal commonly used in the prior art
High viscosity, and epoxide resin polymer 2 includes ion, by smectic liquid crystal 1 is dispersed in epoxide resin polymer 2
In, can be after terminate polymer dispersed liquid-crystal film is energized, when making polymer dispersed liquid-crystal film still maintain energising
State, maintains without external force, thus realizes two-state control, and then reaches energy-conservation purpose.
Embodiment 5:
Present embodiments provide a kind of display device, including: the display floater of embodiment 4.Display device can be: liquid crystal
Display floater, Electronic Paper, mobile phone, panel computer, television set, display, notebook computer, DPF, navigator etc. are any
There are product or the parts of display function.
The display device of the present embodiment, including the display floater of embodiment 4, owing to smectic liquid crystal 1 is relative to existing skill
Nematic liquid crystal conventional in art has relatively high viscosity, and epoxide resin polymer 2 includes ion, by by smectic
Phase liquid crystal 1 is dispersed in epoxide resin polymer 2, can make polymer after terminating to be energized polymer dispersed liquid-crystal film
Dispersed liquid-crystal film still maintains state during energising, maintains without external force, thus realizes two-state control, and then
Reach energy-conservation purpose.
It is understood that the principle that is intended to be merely illustrative of the present of embodiment of above and the exemplary enforcement that uses
Mode, but the invention is not limited in this.For those skilled in the art, in the essence without departing from the present invention
In the case of god and essence, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (12)
1. a polymer dispersed liquid-crystal film, it is characterised in that including: smectic liquid crystal and epoxide resin polymer, described
Epoxide resin polymer includes that ion, described smectic liquid crystal are dispersed in described epoxide resin polymer.
Polymer dispersed liquid-crystal film the most according to claim 1, it is characterised in that described epoxide resin polymer is contracting
Water glycerin ether based epoxy resin polymer.
Polymer dispersed liquid-crystal film the most according to claim 1, it is characterised in that described epoxide resin polymer is by ring
Epoxy resins monomer occurs polyreaction to generate in the presence of light trigger and light radiation.
Polymer dispersed liquid-crystal film the most according to claim 3, it is characterised in that
Described light trigger includes diaryl group iodized salt and triaryl sulfonium salts.
Polymer dispersed liquid-crystal film the most according to claim 3, it is characterised in that described smectic liquid crystal, described ring
The mass percent of epoxy resins monomer and described light trigger is:
Smectic liquid crystal 40～80wt%；
Epoxy monomer 29～60wt%；
Light trigger 1～10wt%.
Polymer dispersed liquid-crystal film the most according to claim 1, it is characterised in that also include: first be oppositely arranged
Flexible substrates and the second flexible substrates, it is positioned at described first flexible substrates and leads near the first of the side of described second flexible substrates
Electric layer and be positioned at described second flexible substrates the second conductive layer near the side of described first flexible substrates, described epoxy resin
Polymer and described smectic liquid crystal are between described first conductive layer and described second conductive layer.
7. the preparation method of a polymer dispersed liquid-crystal film, it is characterised in that including:
Smectic liquid crystal and epoxy monomer are mixed；
The polymerization of described epoxy monomer generates epoxide resin polymer；
Wherein, described epoxide resin polymer includes that ion, described smectic liquid crystal are dispersed in described epoxide resin polymer
In.
Preparation method the most according to claim 7, it is characterised in that described smectic liquid crystal and epoxy monomer are mixed
Conjunction includes:
Smectic liquid crystal, epoxy monomer and light trigger are mixed；
The polymerization of described epoxy monomer generates epoxide resin polymer and includes:
Epoxy monomer occurs polyreaction to generate epoxide resin polymer in the presence of light trigger and light radiation.
Preparation method the most according to claim 8, it is characterised in that described epoxy monomer is at light trigger and light spoke
In the presence of penetrating occur polyreaction generate epoxide resin polymer reaction temperature be 20～60 DEG C, the light radiation time be 15～
80min。
10. the control method of a polymer dispersed liquid-crystal film, it is characterised in that described polymer dispersed liquid-crystal film is power
Profit requires that the polymer dispersed liquid-crystal film described in 1 to 6 any one, described control method include:
Clear state controls the stage: apply DC electric field or high-frequency electric field, described polymer to described polymer dispersed liquid-crystal film
The transparent state of dispersed liquid-crystal film；
Removing described DC electric field or high-frequency electric field, described polymer dispersed liquid-crystal film maintains described clear state；
Nontransparent state controls the stage: apply low-frequency current field, described PDLC to described polymer dispersed liquid-crystal film
Thin film is nontransparent state；
Removing described low-frequency current field, described polymer dispersed liquid-crystal film maintains described nontransparent state.
11. 1 kinds of display floaters, it is characterised in that including: the PDLC described in claim 1 to 6 any one
Thin film.
12. 1 kinds of display devices, it is characterised in that including: the display floater of claim 11.
Priority Applications (1)
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