CN109917599A - A kind of electrophoresis disclosing solution and preparation method thereof and electrophoretic display device (EPD) - Google Patents
A kind of electrophoresis disclosing solution and preparation method thereof and electrophoretic display device (EPD) Download PDFInfo
- Publication number
- CN109917599A CN109917599A CN201910197409.XA CN201910197409A CN109917599A CN 109917599 A CN109917599 A CN 109917599A CN 201910197409 A CN201910197409 A CN 201910197409A CN 109917599 A CN109917599 A CN 109917599A
- Authority
- CN
- China
- Prior art keywords
- electrophoresis
- oxide
- charge control
- control agent
- particle
- 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.)
- Pending
Links
Classifications
-
- 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
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/166—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
- G02F1/167—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
-
- 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
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/1675—Constructional details
-
- 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
- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
- G02F1/1685—Operation of cells; Circuit arrangements affecting the entire cell
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The present invention mentions a kind of electrophoresis disclosing solution and preparation method thereof and electrophoretic display device (EPD), electrophoresis disclosing solution provided by the invention, including decentralized medium, electrophoresis particle and charge control agent, charge control agent includes positive charge control agent and negative charge controlling agent, electrophoresis particle includes at least one discoloration electrophoresis particle, discoloration electrophoresis particle outside after under excited state color show shown from color under unactivated state it is different.Electrophoresis disclosing solution provided by the invention and preparation method thereof and electrophoretic display device (EPD) have preferable color display effect.
Description
Technical field
The invention belongs to display device technical fields, and in particular to a kind of electrophoresis disclosing solution and preparation method thereof and electrophoresis are aobvious
Show device.
Background technique
Electronic Paper is that a kind of have memory function, the novel display medium of class paper that is light-weight, moderately can crimping or fold.Electricity
Sub- paper is made of multiple display micro units, and electric ink is contained in micro unit, under applied voltage driving, face with different charge
Colored particle is migrated to electrode both ends, forms display picture.Stability of the electrophoresis particle in suspension directly determines that display is micro-
The performance of unit.Coloured particles in decentralized medium are presented the charge of itself institute's band or are suspended in electricity in dielectric solvent, or
Make it with corresponding charge using charge control agent (CCA).In traditional black-and-white two color electrophoretic display technology, one kind or two are commonly used
Kind charge control agent makes black and white particle after modification have opposite charging property.
With the development of technology and the upgrading of demand, simple black-and-white two color show the demand for being unable to satisfy the people,
Therefore colored display is needed.However in multimode color electrophoresis display methods, electrophoresis showed liquid system is increasingly complex, two colored particles
Since carrying capacity is less, leads to the decline of dichromatism particle electrophoresis mobility, phenomenon occur, limit the display of electrophoretic display device, EDD
Energy.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides the electrophoresis disclosing solution and preparation method thereof with preferable color effect
And electrophoretic display device (EPD).
The present invention provides a kind of electrophoresis disclosing solution, including decentralized medium, electrophoresis particle and charge control agent, the charge control
Preparation includes at least one positive charge control agent and at least one negative charge controlling agent, and the electrophoresis particle includes at least one becomes
Excited state, display and unactivated state hypostome is presented in color electrophoresis particle, the discoloration electrophoresis particle under the excitation of excitaton source
The different color of color.
Preferably, the charge control agent includes cationic surfactant, anionic surfactant and nonionic
One or more of type surfactant.
Preferably, the cationic surfactant include one of fatty amine salt, quaternary ammonium salt and Fixanol or
It is several；The anionic surfactant includes alkanoic acid salt, paraffin sulfonate, alkyl aromatic sulfonates, isopropylamine, alkane
One or more of base benzene sulfonate, phosphate and phosphate；The nonionic surface active agent includes sorbitan list
Ester, polyethoxylated nonionic compound, polybutylene succinimide, copolymer-maleic anhydride, vinylpyridine copolymer,
One of vinylpyrrolidone copolymer, acrylic copolymer and acrylic acid-N, N- copolymer of dimethylaminoethyl are several
Kind.
Preferably, the discoloration electrophoresis particle include yttrium oxide, lanthana, cerium oxide, praseodymium oxide, neodymia, samarium oxide,
One in europium oxide, gadolinium oxide, terbium oxide, dysprosia, holimium oxide, erbium oxide, ytterbium oxide, luteium oxide, scandium oxide and thulium oxide
Kind is several.
Preferably, the weight ratio of the positive charge control agent and negative charge controlling agent is (0.1-6): (0.01-8).
Preferably, the weight ratio of the positive charge control agent and negative charge controlling agent is (1-6): (0.5-3).
Preferably, the weight ratio of the positive charge control agent and positive charge electrophoresis particle is (0.1-8): (50-120)；Institute
The weight ratio for stating negative charge controlling agent and negative electrical charge electrophoresis particle is (0.01-10): (20-150).
Preferably, the excitaton source includes infrared light, ultraviolet light, temperature change, pH variation, change of magnetic field strength, electric field
One or more of Strength Changes.
The present invention provides a kind of preparation method of electrophoresis disclosing solution, by weight, includes the following steps:
(1) 50-120 parts of positive charge electrophoresis particle, 0.1-8 parts of positive charge control agent, negative charge controlling agent 0.01-10 is added
Part, 20-150 parts of negative electrical charge electrophoresis particle and 100-300 parts of decentralized medium.
(2) it is warming up to 60-100 DEG C, is shaken 24-36 hours, is cooled to 30-50 DEG C, then shake 12-40 hours, electricity is made
Swimming display liquid.
The present invention also provides a kind of electrophoretic display device (EPD)s, successively aobvious including transparent front plate, electrophoresis as described above from outside to inside
Show that electrophoretic display layer, backboard that liquid is formed, the transparent front plate and backboard are used to apply telecommunications at the electrophoretic display layer both ends
Number.
Electrophoresis disclosing solution provided by the invention and preparation method thereof and electrophoretic display device (EPD) have preferable color display effect.
Detailed description of the invention
It is more particularly described by the preferred embodiment of the present invention shown in the drawings, the above and other purpose of the present invention, feature
It will be become more fully apparent with advantage.Identical appended drawing reference indicates identical part in all the attached drawings, and not deliberately by real
Size equal proportion scaling in border draws attached drawing, it is preferred that emphasis is shows this purport.
Fig. 1 be only negative charge controlling agent electrophoretic display device (EPD) under unactivated state schematic diagram；
Fig. 2 be only negative charge controlling agent electrophoretic display device (EPD) under excited state schematic diagram；
Fig. 3 be only positive charge control agent electrophoretic display device (EPD) under unactivated state schematic diagram；
Fig. 4 be only positive charge control agent electrophoretic display device (EPD) under excited state schematic diagram；
Fig. 5 is electrophoretic display device (EPD) provided in an embodiment of the present invention schematic diagram under unactivated state；
Fig. 6 is electrophoretic display device (EPD) provided in an embodiment of the present invention schematic diagram under excited state；
Specific embodiment
Technical solution of the present invention is described in further detail combined with specific embodiments below, so that the technology of this field
Personnel can better understand the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
The embodiment of the present invention provides a kind of electrophoresis disclosing solution, including decentralized medium, electrophoresis particle and charge control agent, charge
Controlling agent includes the positive charge control agent for keeping electrophoresis particle positively charged and makes the electronegative negative charge controlling agent of electrophoresis particle, electrophoresis
Particle includes at least one discoloration electrophoresis particle, discoloration electrophoresis particle outside after under excited state color show and unactivated state
Lower color display is different.
The present invention uses two kinds of charge control agents, and two kinds of charge control agents are respectively acting on positive charged particles and negative electrical charge grain
Son, such as positive charge control agent act on the discoloration electrophoresis particle being displayed in white under unactivated state, negative charge controlling agent effect
In general black particle.Make two kinds of particles with different charges, under electric field action, the electricity of black electrophoretic particles and changeable colour
Swimming particle is migrated to corresponding pole plate, and in lower display multiple color.The electrophoresis disclosing solution with color effect can be obtained, also
It can guarantee that particle has preferable migration rate.
In traditional black-and-white two color electrophoretic display technology, common one or two charge control agent makes black and white particle after modification
With opposite charging property, two kind charge control agents of the particle with positive charge negative electricity can be made mixed respectively, in traditional black and white
Not without apparent synergistic effect in dichromatism electrophoretic display technology.However act in the electrophoresis disclosing solution of the present embodiment, but have
Improve electrophoresis particle migration rate, provide steric hindrance for particle, form the effect of more stable solution system.This be because
Increasingly complex for electrophoresis showed liquid system in the present embodiment, two colored particles lead to two color tablets occur since surface charge amount is less
The phenomenon that sub- electrophoretic mobility declines.
In a preferred embodiment, charge control agent includes cationic surfactant, anionic surfactant and non-
One or more of ionic surfactant.In general charge control agent keep particle positively charged or negative electricity be it is opposite,
E.g. sulfonate, it can make certain particles negatively charged, but other particles can also be made positively charged, this depends on this table
Properties between face activating agent and particle.
In a preferred embodiment, negative charge controlling agent includes anionic surfactant or nonionic surface active agent；
Positive charge control agent includes cationic surfactant or nonionic surface active agent.
In a preferred embodiment, cationic surfactant includes one in fatty amine salt, quaternary ammonium salt and Fixanol
Kind is several；Anionic surfactant includes alkanoic acid salt, paraffin sulfonate, alkyl aromatic sulfonates, isopropylamine, alkane
One or more of base benzene sulfonate, phosphate and phosphate；Nonionic surface active agent includes sorbitan monoester, gathers
Ethoxylated nonionic compound, polybutylene succinimide, copolymer-maleic anhydride, vinylpyridine copolymer, ethylene
One or more of base pyrrolidinone copolymer, acrylic copolymer and acrylic acid-N, N- copolymer of dimethylaminoethyl.
In a preferred embodiment, discoloration electrophoresis particle includes yttrium oxide, lanthana, cerium oxide, praseodymium oxide, neodymia, oxygen
Change in samarium, europium oxide, gadolinium oxide, terbium oxide, dysprosia, holimium oxide, erbium oxide, ytterbium oxide, luteium oxide, scandium oxide and thulium oxide
One or more.
In a preferred embodiment, condition includes infrared light, ultraviolet light, temperature change, pH variation, change of magnetic field strength,
One or more of electric field strength variation conditional combination.
In a preferred embodiment, the weight ratio of positive charge control agent and negative charge controlling agent is (0.1-6): (0.01-8).
In a preferred embodiment, the weight ratio of positive charge control agent and negative charge controlling agent is (1-6): (0.5-3).
In a preferred embodiment, the weight ratio of positive charge control agent and negative charge controlling agent is (0.5-5): (1-5).
In a preferred embodiment, the weight ratio of positive charge control agent and negative charge controlling agent is (0.5-2): (0.05-5)
In a preferred embodiment, the weight ratio of positive charge control agent and positive charge electrophoresis particle is (0.1-8): (50-
120)；More preferably (1-5): (60-100).
In a preferred embodiment, the weight ratio of negative charge controlling agent and negative electrical charge electrophoresis particle is (0.01-10): (20-
150)；More preferably (1-5): (20-80).
The embodiment of the present invention also provides a kind of preparation method of electrophoresis disclosing solution, by weight, includes the following steps:
(1) 50-120 parts of positive charge electrophoresis particle, 0.1-8 parts of positive charge control agent, negative charge controlling agent 0.01-10 is added
Part, 20-150 parts of negative electrical charge electrophoresis particle and 100-300 parts of decentralized medium.
(2) it is warming up to 60-100 DEG C, is shaken 24-36 hours, is cooled to 30-50 DEG C, then shake 12-40 hours, electricity is made
Swimming display liquid.
In a preferred embodiment, the positive charged particles and/or negative electrical charge particle are discoloration electrophoresis particle, and change colour electrophoresis grain
Son outside after under excited state color show shown from color under unactivated state it is different.
In a preferred embodiment, positive charge control agent and/or negative charge controlling agent include cationic surfactant, yin from
One or more of subtype surfactant and nonionic surface active agent.Charge control agent keeps particle positively charged or negative electricity
It is opposite, e.g. sulfonate, it can make certain particles negatively charged, but other particles can also be made positively charged, this takes
The certainly properties between this surfactant and particle.
In a preferred embodiment, cationic surfactant includes one in fatty amine salt, quaternary ammonium salt and Fixanol
Kind is several；Anionic surfactant includes alkanoic acid salt, paraffin sulfonate, alkyl aromatic sulfonates, isopropylamine, alkane
One or more of base benzene sulfonate, phosphate and phosphate；Nonionic surface active agent includes sorbitan monoester, gathers
Ethoxylated nonionic compound, polybutylene succinimide, copolymer-maleic anhydride, vinylpyridine copolymer, ethylene
One or more of base pyrrolidinone copolymer, acrylic copolymer and acrylic acid-N, N- copolymer of dimethylaminoethyl.
In a preferred embodiment, excitaton source includes infrared light, ultraviolet light, temperature change, pH variation, change of magnetic field strength,
One or more of electric field strength variation.
When excitaton source is ultraviolet light or infrared light, discoloration electrophoresis particle has photochromic material, when ultraviolet light or red
After outer light excites photochromic material, discoloration electrophoresis particle shows the color different from unactivated state.Light-induced variable
Color material includes yttrium oxide, lanthana, cerium oxide, praseodymium oxide, neodymia, samarium oxide, europium oxide, gadolinium oxide, terbium oxide, oxidation
One or more of dysprosium, holimium oxide, erbium oxide, ytterbium oxide, luteium oxide, scandium oxide and thulium oxide.
When excitaton source is temperature change, discoloration electrophoresis particle has temperature-sensing color-changing material, and heat discoloration pigment is by electricity
Sub- transfevent organic compound objects system preparation.Electron transfer type organic compound is a kind of organic with special chemical structure
Color development system.At a certain temperature because electronics transfer makes the molecular structure of the organic matter change, to realize color transition.
When excitaton source is change of magnetic field strength, discoloration electrophoresis particle has magnetic to off-color material, such as Publication No.
Magnetic disclosed in the patent of CN106873190A is to off-color material.
When excitaton source is that electric field strength changes, discoloration electrophoresis particle has electrochromic material, electrochromic material point
For inorganic electrochromic material and organic electrochromic material.The Typical Representative of inorganic electrochromic material is tungstic acid.
When excitaton source be pH change when, discoloration electrophoresis particle have pH value cause off-color material, as methyl red, bromocresol green,
The organic materials such as the complex compound that thymol blue, phthalide, azo dyes, metal ion and chelate are formed.
The embodiment of the present invention also provides a kind of electrophoretic display device (EPD), it from outside to inside successively include transparent front plate 111, institute as above
Electrophoretic display layer, the backboard 112 for the electrophoresis disclosing solution formation stated, the transparent front plate 111 and backboard 112 are used in the electrophoresis
Display layer both ends apply electric signal.
With reference to Fig. 1-4, in the system for only containing a kind of charge control agent, the electrophoresis particle 121 that no matter changes colour is in excitation
State or nonexcitation state, the whole display effect of electrophoretic display device (EPD) are simultaneously bad.With reference to Fig. 5-6, the electricity containing there are two types of of the present embodiment
In the system that lotus controlling agent is used in compounding, the electrophoresis particle 121 that no matter changes colour is in excitation state or nonexcitation state, electrophoretic display device (EPD)
Whole display effect it is all fine.
With reference to Fig. 1 and Fig. 2, electrophoretic display layer contains decentralized medium 123, a kind of discoloration electrophoresis particle 121 and one kind can not
Black particles 124, in the case where no change colour electrophoresis particle 121 be displayed in white, electrophoretic display layer also contains negative electrical charge control
Agent 122, negative charge controlling agent are combined with discoloration electrophoresis particle 121, so that discoloration electrophoresis particle 121 is negatively charged more, migration effect
Fruit is preferable.But since black particles 124 are positively charged less, migration effect is poor, with reference to Fig. 1.When to discoloration electrophoresis particle 121
After being excited, discoloration electrophoresis particle 121 shows the state after excitation, shows that blue (indicates grain in figure with different texture
The color changeable effect of son), with reference to Fig. 2
With reference to Fig. 3 and Fig. 4, electrophoretic display layer contains decentralized medium 123, a kind of discoloration electrophoresis particle 121 and one kind can not
Black particles 124, in the case where no change colour electrophoresis particle 121 be displayed in white, electrophoretic display layer also contains positive charge control
Agent 125, positive charge control agent 125 are combined with black particles 124, and positively charged more, migration effect is preferable, and change colour electrophoresis particle
121 is negatively charged less, and migration effect is poor, such as Fig. 3.Under, discoloration electrophoresis particle 121 shows the state after excitation, display
It is blue out, such as Fig. 4.
With reference to Fig. 5 and Fig. 6, electrophoretic display layer contains decentralized medium 123, a kind of discoloration electrophoresis particle 121 and one kind can not
Black particles 124, in the case where no change colour electrophoresis particle 121 be displayed in white.Electrophoretic display layer also contains positive charge control
Agent 125, positive charge control agent 125 are combined with black particles 124, and positively charged more, migration effect is preferable.Electrophoretic display layer also contains
There is negative charge controlling agent 122, negative charge controlling agent is combined with discoloration electrophoresis particle 121, so that discoloration electrophoresis particle 121 is negatively charged
More, migration effect is preferable, and whole display effect is good, with reference to Fig. 5.Under, discoloration electrophoresis particle 121 shows the shape after excitation
State shows blue, such as Fig. 6.
In order to have further understanding and understanding to technical solution of the present invention, several preferred embodiments pair are now enumerated
It is described in further details.
Embodiment 1
In the silk mouth bottle of 500mL, black electrophoretic particles iron oxide black 60g, black electrophoretic particles positive charge control agent ten is added
Six alkyl trimethyl ammonium chloride 3g, white electrophoretic particles negative charge controlling agent lauryl sodium sulfate 1g, white electrophoretic particles oxygen
Change doped yttrium europium fluorescent powder 60g, decentralized medium carbon tetrachloride 276g, atmosphere temperature rising vibrates 2 days to 80 DEG C, then is down to 40 DEG C, shakes
It swings 1 day, electrophoresis disclosing solution is made, be added in electrophoretic apparatus and multimode color electrophoretic display part is made.
Embodiment 2
In the silk mouth bottle of 500mL, black electrophoretic particles iron oxide black 30g, black electrophoretic particles positive charge control agent ten is added
Dialkyl dimethyl tertiary amine acetate 1.5g, white electrophoretic particles negative charge controlling agent dodecyl benzene sulfonic acid 4.5g, white electricity
Swim particle Yttrium oxide doping europium fluorescent powder 90g, and decentralized medium carbon tetrachloride 276g, atmosphere temperature rising vibrates 2 days to 80 DEG C, then drops
It to 40 DEG C, vibrates 1 day, electrophoresis disclosing solution is made, be added in electrophoretic apparatus and multimode color electrophoretic display part is made.
Comparative example 1
Embodiment 1 is compared, and lauryl sodium sulfate is not added in comparative example 1, remaining component and preparation method and embodiment 1
It is identical.
Comparative example 2
Compared with Example 1, europium oxide is titanium white in comparative example 1, remaining component and preparation method are same as Example 1.
Comparative example 3
Compared with Example 1, europium oxide is titanium white in comparative example 1, and lauryl sodium sulfate is not added, remaining component
It is same as Example 1 with preparation method.
By test, the comparative example 1 that a kind of charge control agent is only added in embodiment 1 and embodiment 2 relatively is with higher
Particle migration rate, manufactured electrophoretic display device (EPD) reaction is fast, and display effect is more preferable.
Comparative example 2 and comparative example 3 are to be directed to traditional black-and-white two color particle, electrophoretic display device (EPD) made of two comparative examples
In particle migration rate and display effect, there is no vary widely.Illustrate two kinds of charge control agent compoundings, simultaneously for other systems
There is no preferable gain effect.
To sum up, illustrate that the present invention program is reasonable, it can be preferable by positive charge control agent and negative charge controlling agent compounding
Promote the electrophoresis particle migration rate of the system with discoloration electrophoresis particle of the present invention program.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (10)
1. a kind of electrophoresis disclosing solution, which is characterized in that including decentralized medium, electrophoresis particle and charge control agent, the charge control
Preparation includes positive charge control agent and negative charge controlling agent, and the electrophoresis particle includes at least one discoloration electrophoresis particle, described
Excited state is presented in discoloration electrophoresis particle under the excitation of excitaton source, shows the color different from color under unactivated state.
2. electrophoresis disclosing solution as described in claim 1, which is characterized in that the charge control agent includes cation surface activating
One or more of agent, anionic surfactant and nonionic surface active agent.
3. electrophoresis disclosing solution as described in claim 1, which is characterized in that the cationic surfactant includes fatty amine
One or more of salt, quaternary ammonium salt and Fixanol；The anionic surfactant includes alkanoic acid salt, alkane
One or more of sulfonate, alkyl aromatic sulfonates, isopropylamine, alkylbenzene sulfonate, phosphate and phosphate；It is described non-
Ionic surfactant includes sorbitan monoester, polyethoxylated nonionic compound, polybutylene succinimide, horse
Come acid anhydride copolymer, vinylpyridine copolymer, vinylpyrrolidone copolymer, acrylic copolymer and acrylic acid-N, N-
One or more of copolymer of dimethylaminoethyl.
4. electrophoresis disclosing solution as described in claim 1, which is characterized in that the discoloration electrophoresis particle includes yttrium oxide, oxidation
Lanthanum, cerium oxide, praseodymium oxide, neodymia, samarium oxide, europium oxide, gadolinium oxide, terbium oxide, dysprosia, holimium oxide, erbium oxide, oxidation
One or more of ytterbium, luteium oxide, scandium oxide and thulium oxide.
5. electrophoresis disclosing solution as described in claim 1, which is characterized in that the positive charge control agent and negative charge controlling agent
Weight ratio is (0.1-6): (0.01-8).
6. electrophoresis disclosing solution as claimed in claim 7, which is characterized in that the positive charge control agent and negative charge controlling agent
Weight ratio is (1-6): (0.5-3).
7. electrophoresis disclosing solution as described in claim 1, which is characterized in that the positive charge control agent and positive charge electrophoresis particle
Weight ratio be (0.1-8): (50-120)；The weight ratio of the negative charge controlling agent and negative electrical charge electrophoresis particle is (0.01-
10): (20-150).
8. electrophoresis disclosing solution as described in claim 1, which is characterized in that the excitaton source includes infrared light, ultraviolet light, temperature
Variation, pH variation, change of magnetic field strength, one or more of electric field strength variation.
9. a kind of preparation method of electrophoresis disclosing solution, which is characterized in that by weight, include the following steps:
(1) be added 50-120 parts of positive charge electrophoresis particle, 0.1-8 parts of positive charge control agent, 0.01-10 parts of negative charge controlling agent,
20-150 parts and decentralized medium 100-300 parts of negative electrical charge electrophoresis particle.
(2) it is warming up to 60-100 DEG C, shakes 24-36 hours, is cooled to 30-50 DEG C, then shake 12-40 hours, it is aobvious that electrophoresis is made
Show liquid.
10. a kind of electrophoretic display device (EPD) successively includes transparent front plate, such as described in any item electrophoresis of claim 1-8 from outside to inside
Show that electrophoretic display layer, backboard that liquid is formed, the transparent front plate and backboard are used to apply electricity at the electrophoretic display layer both ends
Signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910197409.XA CN109917599A (en) | 2019-03-15 | 2019-03-15 | A kind of electrophoresis disclosing solution and preparation method thereof and electrophoretic display device (EPD) |
| PCT/CN2019/129203 WO2020186878A1 (en) | 2019-03-15 | 2019-12-27 | Electrophoretic display liquid and preparation method thereof and electrophoretic display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910197409.XA CN109917599A (en) | 2019-03-15 | 2019-03-15 | A kind of electrophoresis disclosing solution and preparation method thereof and electrophoretic display device (EPD) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109917599A true CN109917599A (en) | 2019-06-21 |
Family
ID=66965033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910197409.XA Pending CN109917599A (en) | 2019-03-15 | 2019-03-15 | A kind of electrophoresis disclosing solution and preparation method thereof and electrophoretic display device (EPD) |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109917599A (en) |
| WO (1) | WO2020186878A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020186878A1 (en) * | 2019-03-15 | 2020-09-24 | 广州奥翼电子科技股份有限公司 | Electrophoretic display liquid and preparation method thereof and electrophoretic display |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101548229A (en) * | 2006-09-22 | 2009-09-30 | 株式会社普利司通 | Particles for display medium, and information display panel using the same |
| CN101738814A (en) * | 2009-11-11 | 2010-06-16 | 广州奥翼电子科技有限公司 | Electrophoresis disclosing solution and preparation method thereof |
| CN102216844A (en) * | 2008-11-18 | 2011-10-12 | Sk电信有限公司 | Particles for electronic paper and manufacturing method thereof |
| CN105700265A (en) * | 2016-03-25 | 2016-06-22 | 中国科学院宁波材料技术与工程研究所 | Colorful electrophoretic display with electric field response photonic crystal characteristics and preparation method and display method thereof |
| CN106520111A (en) * | 2016-12-09 | 2017-03-22 | 广州奥翼电子科技股份有限公司 | Color-changing electrophoretic particle and preparation method thereof and electrophoretic display |
| WO2018219607A1 (en) * | 2017-06-01 | 2018-12-06 | Basf Se | Electrophoretic ink providing bistability |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101100571B (en) * | 2007-04-30 | 2012-11-21 | 北京印刷学院 | Electrophoresis display electronic ink |
| JP2009103887A (en) * | 2007-10-23 | 2009-05-14 | Bridgestone Corp | Particle for display medium, and information display panel using the same |
| JP6247750B2 (en) * | 2013-05-14 | 2017-12-13 | イー インク コーポレイション | Colored electrophoresis display |
| CN110058473A (en) * | 2019-03-15 | 2019-07-26 | 广州奥翼电子科技股份有限公司 | A kind of bimodulus electrophoretic display device (EPD) |
| CN109976063A (en) * | 2019-03-15 | 2019-07-05 | 广州奥翼电子科技股份有限公司 | A kind of electrophoresis showed micro unit |
| CN109917599A (en) * | 2019-03-15 | 2019-06-21 | 广州奥翼电子科技股份有限公司 | A kind of electrophoresis disclosing solution and preparation method thereof and electrophoretic display device (EPD) |
-
2019
- 2019-03-15 CN CN201910197409.XA patent/CN109917599A/en active Pending
- 2019-12-27 WO PCT/CN2019/129203 patent/WO2020186878A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101548229A (en) * | 2006-09-22 | 2009-09-30 | 株式会社普利司通 | Particles for display medium, and information display panel using the same |
| CN102216844A (en) * | 2008-11-18 | 2011-10-12 | Sk电信有限公司 | Particles for electronic paper and manufacturing method thereof |
| CN101738814A (en) * | 2009-11-11 | 2010-06-16 | 广州奥翼电子科技有限公司 | Electrophoresis disclosing solution and preparation method thereof |
| CN105700265A (en) * | 2016-03-25 | 2016-06-22 | 中国科学院宁波材料技术与工程研究所 | Colorful electrophoretic display with electric field response photonic crystal characteristics and preparation method and display method thereof |
| CN106520111A (en) * | 2016-12-09 | 2017-03-22 | 广州奥翼电子科技股份有限公司 | Color-changing electrophoretic particle and preparation method thereof and electrophoretic display |
| WO2018219607A1 (en) * | 2017-06-01 | 2018-12-06 | Basf Se | Electrophoretic ink providing bistability |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020186878A1 (en) * | 2019-03-15 | 2020-09-24 | 广州奥翼电子科技股份有限公司 | Electrophoretic display liquid and preparation method thereof and electrophoretic display |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020186878A1 (en) | 2020-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI332111B (en) | Electrophoretic apparatus | |
| CN105378554B (en) | color electrophoretic display | |
| Ota et al. | Electrophoretic image display (EPID) panel | |
| TW574513B (en) | Electrochromic display device and compositions useful in making such devices | |
| US6330054B1 (en) | Image-forming method and image-forming apparatus on recording medium including microcapsules | |
| CN106030400B (en) | Electrophoretic display device (EPD) | |
| CN106520111B (en) | A kind of discoloration electrophoresis particle and preparation method thereof and electrophoretic display device (EPD) | |
| CN105259683B (en) | The preparation method and COA type array base paltes of COA type array base paltes | |
| CN103772872A (en) | Quantum dot/acrylate polymer nanocrystal complex, preparation method of quantum dot/acrylate polymer nanocrystal complex, and colored conversion coating | |
| JPS5942287B2 (en) | Hue modulation display device | |
| US20140085706A1 (en) | Polychrome electrophoretic ink, associated display device and manufacturing process | |
| CN110109197A (en) | Photon crystal material and preparation method thereof and photonic crystal ink and its application | |
| WO2020186879A1 (en) | Dual-mode electrophoretic display | |
| CN104144791A (en) | Multi-color electrophoretic ink, related display device and manufacturing method | |
| CN109917599A (en) | A kind of electrophoresis disclosing solution and preparation method thereof and electrophoretic display device (EPD) | |
| JP4318935B2 (en) | Manufacturing method of color display member and reflective color image display device using the manufacturing method | |
| EP2793075B1 (en) | Method for preparing colourful microcapsule film and display device comprising same | |
| TW201415152A (en) | Reflective-type color display | |
| CN107885006A (en) | A kind of display methods of the adjustable quantum dot electrophoretic display device (EPD) of white light colour temperature | |
| JPH03266818A (en) | Production of display liquid for electrophoretic display device | |
| CN209149028U (en) | A kind of electrophoretic display device (EPD) | |
| CN102585676B (en) | Electrophoretic display coating liquid and preparation method thereof | |
| CN109976063A (en) | A kind of electrophoresis showed micro unit | |
| KR20050054794A (en) | Slurry compositions of charged color particle and preparing method thereof for electrophoretic display | |
| JP2005166967A (en) | Composite magnetic particle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190621 |