CN109507841A - The electric ink and its device architecture of quick response - Google Patents
The electric ink and its device architecture of quick response Download PDFInfo
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- CN109507841A CN109507841A CN201811579150.7A CN201811579150A CN109507841A CN 109507841 A CN109507841 A CN 109507841A CN 201811579150 A CN201811579150 A CN 201811579150A CN 109507841 A CN109507841 A CN 109507841A
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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
- G02F1/13—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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
-
- 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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth 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 relates to a kind of electric ink of quick response and its device architectures, electric ink includes charge control agent, thickener, liquid crystal material and at least one electrophoresis particle, the electrophoretic display device, EDD structure includes: first substrate and the second substrate, first substrate and the second substrate interval are arranged in parallel relatively, wherein, first electrode and second electrode are respectively equipped on first substrate and the opposite face of the second substrate；Electrophoretic display layer is sealed between first substrate and the second substrate, wherein electrophoretic display layer includes electric ink；And at least one both alignment layers, it is arranged between first substrate and the second substrate, to realize the liquid crystal material in electric ink under the action of both alignment layers, orientation having the same and movement rate, to improve the movement rate of electrophoresis particle, the sport efficiency of electrophoresis particle in electrophoresis showed is improved, so as to improve the effect of electrophoresis showed.
Description
Technical field
The present embodiments relate to electrophoretic display technology fields, more particularly to the electric ink and its device of quick response
Structure.
Background technique
Existing electrophoretic electronic paper display technology has compared to transmission-type or self start type display in the outdoor strong ring of light
Readability and reflective display under border are exclusive the advantages of being not easy visual fatigue, but since the movement velocity of electrophoresis particle is relatively slow and
Track is chaotic, needs voltage waveform appropriate that can just have preferably display effect into horizontal drive control, leads to the picture of electrophoresis showed
Face conversion time is longer.
Summary of the invention
Based on this, it is necessary to for the long technology of the slow electrophoresis showed reaction of the movement velocity of electrophoresis particle and refresh time
Problem provides the electric ink and its device architecture of a kind of quick response.
In a first aspect, the embodiment of the present invention provides a kind of electric ink, electric ink include charge control agent, thickener,
Liquid crystal material and at least one electrophoresis particle；Wherein, the weight percent of charge control agent is 0.01-10%, liquid crystal material
Weight percent be 0.1-50%, wherein liquid crystal material be nematic liquid crystal, smectic liquid crystal, cholesteric liquid crystal, blue phase liquid
Brilliant and ferroelectric liquid crystal one or more, electric ink is dispersed in low polarity or nonpolar decentralized medium.
Electrophoresis particle includes that carbon black nano particle, titanium dioxide granule, carbon ball and silicon are received in one of the embodiments,
Rice grain it is one or more.
The color of electrophoresis particle includes magenta, yellow, cyan, one in black and white in one of the embodiments,
Kind is a variety of.
Charge control agent includes: organic sulfonate, organic sulfate, organic phosphate, has in one of the embodiments,
Machine phosphate, polyesters, polyolefins, polyacrylate and polyethers it is one or more.
Thickener includes methylcellulose, hydroxypropyl methyl cellulose, carboxymethyl cellulose in one of the embodiments,
Sodium, hydroxyethyl cellulose, polyacrylamide, polyvinyl alcohol, polyisobutene, polyvinylpyrrolidone and polyethylene glycol oxide it is a kind of or
It is a variety of.
Second aspect, the embodiment of the present invention also provide a kind of electrophoretic display device, EDD structure, comprising:
First substrate and the second substrate, first substrate and the second substrate interval are opposite to be arranged in parallel, wherein first substrate and
First electrode and second electrode are respectively equipped on the opposite face of the second substrate；
Electrophoretic display layer is sealed between first substrate and the second substrate, wherein electrophoretic display layer includes such as first aspect
Electric ink；And
At least one both alignment layers is arranged between first substrate and the second substrate, and both alignment layers include that vertical orientation, level are matched
To, multi-domain vertical alignment, graphical vertical orientation, plane conversion orientation or optical compensation curved arrangement orientation.
In one of the embodiments, further include: interval body, interval body are arranged between first substrate and the second substrate.
At least one of first electrode and second electrode are transparent electrode in one of the embodiments,.
First electrode and second electrode are patterned electrodes in one of the embodiments,.
The third aspect, the embodiment of the present invention also provide a kind of display equipment, the electrophoretic display device, EDD including such as second aspect
Structure.
The electric ink and its device architecture of a kind of quick response provided by the above embodiment, by being mixed in electrophoresis particle
Enter liquid crystal material, under the action of both alignment layers and electric field, to provide the fortune of electrophoresis particle in electric ink by liquid crystal material
Dynamic rate, improves the refresh rate of electrophoresis showed.
Detailed description of the invention
Fig. 1 is a kind of the first schematic diagram of electrophoretic display device, EDD structure that inventive embodiments provide；
Fig. 2 is a kind of the second schematic diagram of electrophoretic display device, EDD structure that inventive embodiments provide.
Specific embodiment
It to facilitate the understanding of the present invention, below will be to invention is more fully described.But the present invention can be to be permitted
Mostly different form is realized, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes
It is more thorough and comprehensive to the understanding of the disclosure.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
The embodiment of the present invention provides a kind of electric ink, which includes charge control agent, thickener, liquid crystal material
And at least one electrophoresis particle；Wherein, the weight percent of charge control agent is 0.01-10%, the weight hundred of liquid crystal material
Divide than being 0.1-50%, wherein liquid crystal material is nematic liquid crystal, smectic liquid crystal, cholesteric liquid crystal, blue phase liquid crystal, ferroelectricity
Property liquid crystal it is one or more, electric ink is dispersed in low polarity or nonpolar decentralized medium.
In embodiment, electrophoresis particle is the key component of electrophoresis showed, plays a part of to show image, the performance of electrophoresis particle
Directly affect the performance of display device.Electrophoresis particle includes inorganic material, organic material and metal material.Electrophoresis particle table
Face is as smooth as possible, and to reduce the resistance of motion, partial size is between 10nm-5um.The electrification of electron particles surface.In embodiment, electrophoresis
Particle can be a kind of electrophoresis particle of color, and such as black electrophoretic particles are also possible to double-colored electrophoresis particle, such as black electrophore tic grain
Son and white electrophoretic particles, can also be multiple colour electrophoretic particle.By taking double-colored electrophoresis particle as an example, there are two types of electrical phases in microcapsules
Instead, the different particle of color is dispersed in transparent liquid.After some strength voltage is added, charged particle can be towards opposite
Direction movement, shows different colors.For example, white particles are negatively charged, black particles are positively charged.When top crown is negatively charged
When, black particles can move upwards, and white particles can move downward, to show black.After changing direction of an electric field, leucoplastid
Son can move up, and black particles move down, to show white.When removing electric field, image can keep white, realize steady
State is shown.
Charge control agent improves the response speed of particle under the electric field, utilizes simultaneously for charging electrophoresis particle surface
The charge effect that identical charges repel each other maintains the dispersion stabilization of particle.Charge control agent can ionize in organic solvent, ionization
A kind of ion out can be preferentially adsorbed on electrophoresis particle surface.In wherein some embodiments, the weight hundred of charge control agent
Divide than being 0.01-10%.Thickener is used to increase the viscosity of liquid.
Liquid crystal material is one kind of nematic liquid crystal, smectic liquid crystal, cholesteric liquid crystal, blue phase liquid crystal, ferroelectric liquid crystal
It is or a variety of, wherein nematic liquid crystal, smectic liquid crystal, cholesteric liquid crystal, blue phase liquid crystal, ferroelectric liquid crystal are liquid crystal material.Liquid
Crystalline substance has mobility, ordered arrangement and can show anisotropy.The molecular structure of the long stick of liquid crystal, in molecular long axis and short axle
Dielectric constant on direction is different, and liquid crystal is enabled to issue raw deflection in extra electric field.In embodiment, liquid crystal material
Weight percent is 0.1-50%.
Decentralized medium is used for dispersed electrophoretic particle, can further can be with for single or compounding inert organic solvents
For low polarity or non-polar organic solvent.Decentralized medium has good chemistry and optical stability, lower dielectric constant.?
In some of embodiments, decentralized medium includes siloxanes, epoxide, aromatic hydrocarbons, aliphatic hydrocarbon, halogenated hydrocarbons etc..Optionally, originally
In embodiment, decentralized medium is low polarity or nonpolar organic solvent.
Electric ink provided in this embodiment, the electronic ink are dispersed in low polarity or nonpolar decentralized medium, electronics
Ink include weight percent be 0.01-10% charge control agent, weight percent be 0.1-50% liquid crystal material, and
Thickener and at least one electrophoresis particle, liquid crystal material be nematic liquid crystal, smectic liquid crystal, cholesteric liquid crystal, blue phase liquid crystal,
Ferroelectric liquid crystal it is one or more, thus the characteristic to deflect using liquid crystal material under the electric field, accelerate electric ink
Flowing, so as to improve the sport efficiency of electrophoresis particle in electric ink.
The color of electrophoresis particle includes magenta, yellow, cyan, one in black and white in one of the embodiments,
Kind is a variety of.
The trichromatic color of pigment includes one of magenta, yellow, cyan, black and white or a variety of.According to it is pinkish red,
Yellow and cyan three primary colors can blend all colors, to realize the colored display of Electronic Paper.
Charge control agent includes organic sulfate, organic salt or sulfate, organic phosphoric acid in one of the embodiments,
Salt, organophosphorus ester, polyesters, polyolefins, polyacrylate and polyethers it is one or more.
The charge control agent enumerated in above-described embodiment can make electrophoresis particle surface charge, and improve particle under the electric field
Response speed, charge control agent can make electrophoresis particle surface positively charged or negative electricity.When the quantity of electric charge of electrophoresis particle itself
It is not enough to cause the biggish electrophoretic migration speed of particle, charge control agent can be added to enhance the charge on electrophoresis particle surface
Amount improves the response speed of electrophoresis particle under the electric field.In actual conditions, it can be added just according to the electrical of electrophoresis particle surface
Electrical charge control agent or electronegative charge control agent.
Thickener includes methylcellulose, hydroxypropyl methyl cellulose, carboxymethyl cellulose in one of the embodiments,
Sodium, hydroxyethyl cellulose, polyacrylamide, polyvinyl alcohol, polyisobutene, polyvinylpyrrolidone and polyethylene glycol oxide one
Kind is a variety of, to change the viscosity of electric ink.
The present embodiment provides a kind of preparation flows of electric ink, wherein electrophoresis particle be double-colored electrophoresis particle, specifically with
Carbon black nano particle is as black electrophoretic particles, and for titania nanoparticles as white electrophoretic particles, thickener is poly- isobutyl
Alkene (Polyisobutylene, PIB), charge control agent are mono butonediimide (Monosuccinimide, T151), liquid crystal material
Material is E7 liquid crystal.Its specific preparation flow is as follows: the carbon black nano particle of 7wt% being added in clean round mouth bottle, adds
The T151 charge control agent of the PIB thickener of 1wt%, 0.1wt%, is eventually adding suitable nonpolar solvent, obtains black electricity
Sub- ink solution.Likewise, the titania nanoparticles of 3wt% are added in clean round mouth bottle, add 1wt%'s
The T151 charge control agent of PIB thickener, 0.1wt%, is eventually adding suitable nonpolar solvent, and it is water-soluble to obtain white electronic ink
Liquid.Black electronic ink and white electric ink are uniformly mixed in certain proportion, is placed in shaking table and vibrates two days, obtain
Black and white electric ink solution.Suitable black and white electric ink solution is taken, and suitable E7 liquid crystal material is added thereto,
It is placed on after being vibrated 3 hours in shaking table, obtains the electric ink solution of liquid crystal doping.
Fig. 1 is a kind of the first schematic diagram of electrophoretic display device, EDD structure that inventive embodiments provide, as shown in Figure 1, the electricity
Phoretic display part structure, comprising: first substrate 111 and the second substrate 112, first substrate 111 and the second substrate 112 are spaced relatively
It is arranged in parallel, wherein be respectively equipped with first electrode 121 and second electrode on first substrate 111 and the opposite face of the second substrate 112
122；Electrophoretic display layer 140 is sealed between first substrate 111 and the second substrate 112, wherein electrophoretic display layer 140 includes upper
State the electric ink of any embodiment；And at least one both alignment layers, it is arranged between first substrate 111 and the second substrate 112,
Both alignment layers include that vertical orientation, horizontal direction matching, multi-domain vertical alignment, graphical vertical orientation, plane conversion orientation or optics are mended
Repay bend alignment orientation.
First substrate 111 and the second substrate 112 are spaced for carrying electric ink, first substrate 111 and the second substrate 112
It is opposite to be arranged in parallel.First substrate 111 and the second substrate 112 can be rigid substrates, or flexible base board.Rigid substrates
It can be glass, acrylic board etc..Flexible base board can for polyethylene terephthalate, polyethylene naphthalate,
Polyimides, polymethacrylates, polyacrylonitrile, polyether-ether-ketone, polyether sulfone, vinyl alcohol, polycarbonate, acetal resin,
Polyurethane, polyolefin, polyethylene kind, metal foil, ultra-thin glass, paper substrate, silk fabrics material or Biocomposite material etc..
First electrode 121 can be face electrode, be also possible to patterned electrode.Second electrode 122 can be face electrode, be also possible to
Patterned electrode.First substrate 111 is arranged on the face where the second substrate 112 in first electrode 121, second electrode
122 are arranged in the second substrate 112 on the face where first substrate 111.
Electrophoretic display layer 140 includes the electric ink that any of the above-described embodiment refers to, in first electrode 121 and second
When electrode 122 applies electric field, under the action of electric field, electrophoresis particle is transported to first substrate 121 or 122 direction of the second substrate
It is dynamic, to show the pattern of different colours on first substrate 121 or the second substrate 122.
Both alignment layers are thin high molecular materials, are widely used in liquid crystal display, also referred to as liquid crystal display both alignment layers.Both alignment layers
Material has polystyrene and its derivative (Polystyrene, PS), poly- vinyl cinnamate, light-sensitive polyimide, polyvinyl alcohol
(polyvinyl alcohol, PVA), polyester (Polyethylene terephthalate, PET), epoxy resin (Epoxy
Resin, ER), polyurethane (Polyurethane, PU), polysilane (polysilane), polyimide (Polyimide, PI)
Deng.In the present embodiment, both alignment layers are applied to electrophoresis showed, so that the liquid crystal material in electrophoretic display layer 140, such as nematic phase
Unified orientation under the action of both alignment layers of liquid crystal, smectic liquid crystal, cholesteric liquid crystal, blue phase liquid crystal and ferroelectric liquid crystal,
And deflecting under electric field action makes electric ink have better mobility to promote the movement velocity of electrophoresis particle.
Optionally, both alignment layers are arranged between first substrate and the second substrate.Both alignment layers include vertical orientation (Vertical
Alignment, VA), horizontal direction matching (Twisted Nematic, TN), multi-domain vertical alignment (Multi-domain
Vertically Aligned, MVA), graphical vertical orientation (Patterned Vertical Alignment, PVA), plane
Convert orientation (In-Plane Switching, IPS), optical compensation curved arrangement orientation (optically compensated
Birefringence, OCB).Further, both alignment layers may include the first both alignment layers 131 and the second both alignment layers 132.For example, the
One both alignment layers 131 can be set in first electrode 121, and the second both alignment layers 132 can be set in second electrode 122.First
Both alignment layers 131 can also be arranged between first substrate 111 and first electrode 121, and the second both alignment layers 132 can also be arranged in
Between two substrates 112 and second electrode 122.
Fig. 2 is a kind of the second schematic diagram of electrophoretic display device, EDD structure that inventive embodiments provide, as shown in Fig. 2, this reality
The first electrode 121 and second electrode 122 for applying the electrophoretic display device, EDD structure of example offer connect power supply, under the action of power supply,
Black electrophoretic particles 141 and white electrophoretic particles 142 in electrophoretic display layer 140 are respectively to first electrode and second electrode direction
Movement, so that black electrophoretic particles 141 are all swum in close to second electrode region, white electrophoretic particles 142 are all
It swims in close to second electrode region, while liquid crystal material 141 is in the work of the first both alignment layers 131 and the second both alignment layers 132
It deflects under, to promote black electrophoretic particles 141 and white electrophoretic particles 142 to move, improves the efficiency of electrophoresis showed.
Electrophoretic display device, EDD structure provided in this embodiment, by increasing orientation in traditional electrophoretic display device, EDD structure
Layer, using the liquid crystal material in electric ink provided by the above embodiment under the action of both alignment layers, it is having the same orientation and
Movement rate, so that the movement rate of electrophoresis particle is improved, in addition, apply voltage in electrophoretic display device, EDD structure, liquid crystal material
The deflection direction of material will unite, so that the mobility of the electric ink in electrophoretic display layer is stronger, further increase electricity
The sport efficiency of swimming particle, so as to improve the effect of electrophoresis showed.
Electrophoretic display device, EDD structure further includes interval body in one of the embodiments, and interval body is arranged in first substrate
Between the second substrate.
Specifically, interval body can be set on first substrate or the second substrate, also can be set in first electrode and
On two electrodes.It is bonding relationship between interval body and first substrate and the second substrate, in electrophoretic display device, EDD bending process, leads to
The relationship limit flexion for crossing bonding makes the distance between first substrate and the second substrate keep identical, caused by avoiding because of bending
It stretches so that distance in two flexible base boards is different and leads to the collapsing or deformation of internal structure, ensure that electrophoretic display device, EDD
Inside configuration liquid crystal remains to work normally to improve the movement rate of electrophoresis particle during bending.
At least one of first electrode and second electrode are transparent electrode in one of the embodiments,.
Specifically, the material of at least one of first electrode and second electrode is nano-silver thread, tin indium oxide (Indium
Tin Oxide, ITO) etc. to form transparent electrode.The another one of first electrode and second electrode can be transparent electrode, can also
Think non-transparent electrode, wherein face where transparent electrode is electrophoresis showed face.
First electrode and second electrode are patterned electrodes in one of the embodiments,.
According to the difference of liquid crystal arrangement mode, different patterns is selected to carry out at patterning first electrode and second electrode
Reason.The technique of patterned process includes laser ablation, the close and distant water process of substrate graphical, mask plate deposition and chemical wet etching etc..
In one of the embodiments, can by by after first substrate and the second substrate engagement again by electric ink from pre-
The entrance stayed is injected between two substrates and forms electrophoretic display layer.
Electrophoretic display layer can also be by being coated in first substrate or second for electric ink in one of the embodiments,
Sealing is clamped to be formed using another substrate after on substrate.
Wherein, engagement refer to first substrate and the second substrate by fixation device make its mutually in succession together with, this is fixed
Device can be clip, frame glue or other adhesion agents.
The present embodiment provides a kind of preparation process of electrophoretic display device, EDD structure, in embodiment, first substrate and second
Substrate is ito glass substrate, and the surface of first substrate and the second substrate is formed with ITO electrode using as first electrode and the second electricity
Pole.It anneals 1 hour in one layer of PI alignment layer material of surface spin coating where the ITO of two panels ito glass substrate, and at high temperature,
Then silica dioxide granule is sprayed on a wherein sheet glass and maintain the gap between two glass as spacer, then by two panels
Face where the electrode of ito glass substrate is bonded in opposite directions, seals two sides with ultra-violet curing agent.After the completion of sealing frame, take appropriate above-mentioned
Electric ink in any embodiment, after pouring between two panels ito glass substrate until being full of, with ultra-violet curing agent by remaining two sides
Also it seals, obtains with the display device of the electrophoretic display device, EDD structure referred in above-described embodiment.
The embodiment of the present invention also provides a kind of display equipment (not shown), which includes that any of the above-described embodiment mentions
The electrophoretic display device, EDD structure of confession has the beneficial effect of the electrophoretic display device, EDD structure of any of the above-described embodiment.
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
Only several embodiments of the present invention are expressed for above embodiments, and the description thereof is more specific and detailed, but can not
Therefore it is construed as limiting the scope of the patent.It should be pointed out that for those of ordinary skill in the art,
Under the premise of not departing from present inventive concept, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.
Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of electric ink, which is characterized in that the electric ink include charge control agent, thickener, liquid crystal material and
At least one electrophoresis particle；Wherein, the weight percent of the charge control agent is 0.01-10%, the weight of the liquid crystal material
Amount percentage is 0.1-50%, wherein the liquid crystal material is nematic liquid crystal, smectic liquid crystal, cholesteric liquid crystal, blue phase liquid
Brilliant and ferroelectric liquid crystal one or more, the electric ink is dispersed in low polarity or nonpolar decentralized medium.
2. electric ink according to claim 1, which is characterized in that the electrophoresis particle includes carbon black nano particle, two
Titan oxide particles, carbon ball and nano silicon particles it is one or more.
3. electric ink according to claim 1 or 2, which is characterized in that the color of the electrophoresis particle includes pinkish red, yellow
One of color, cyan, black and white are a variety of.
4. electric ink according to claim 1, which is characterized in that the charge control agent includes: organic sulfonate, has
Machine sulfate, organic phosphate, organophosphorus ester, polyesters, polyolefins, one kind of polyacrylate and polyethers or
It is a variety of.
5. electric ink according to claim 1, which is characterized in that the thickener includes methylcellulose, hydroxypropyl
Methylcellulose, sodium carboxymethylcellulose, hydroxyethyl cellulose, polyacrylamide, polyvinyl alcohol, polyisobutene, polyethylene pyrrole
Pyrrolidone and polyethylene glycol oxide it is one or more.
6. a kind of electrophoretic display device, EDD structure characterized by comprising
First substrate and the second substrate, the first substrate and the second substrate interval are opposite to be arranged in parallel, wherein described the
First electrode and second electrode are respectively equipped on one substrate and the opposite face of the second substrate；
Electrophoretic display layer is sealed between the first substrate and the second substrate, wherein the electrophoretic display layer includes such as
The described in any item electric inks of claim 1-5；And
At least one both alignment layers is arranged between the first substrate and the second substrate, and the both alignment layers include vertically matching
To, horizontal direction matching, multi-domain vertical alignment, graphical vertical orientation, plane conversion orientation or optical compensation curved arrangement orientation.
7. electrophoretic display device, EDD structure according to claim 6, which is characterized in that further include: interval body, the interval body setting
Between the first substrate and the second substrate.
8. electrophoretic display device, EDD structure according to claim 6 or 7, which is characterized in that the first electrode and described
At least one of two electrodes is transparent electrode.
9. electrophoretic display device, EDD structure according to claim 8, which is characterized in that the first electrode and second electricity
Extremely patterned electrodes.
10. a kind of display equipment, which is characterized in that including electrophoretic display device, EDD structure as claim in any one of claims 6-9.
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| CN201811579150.7A CN109507841A (en) | 2018-12-24 | 2018-12-24 | The electric ink and its device architecture of quick response |
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| CN114045063A (en) * | 2021-09-15 | 2022-02-15 | 中山大学 | Polymer-doped electrophoretic ink with quick response and bistable state |
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| CN114141205A (en) * | 2021-12-09 | 2022-03-04 | 中山大学 | Display driving method based on liquid crystal composite electronic ink system and electrophoretic display |
| CN114721244A (en) * | 2022-04-22 | 2022-07-08 | 中山大学 | Electronic paper protection device with low power consumption, perspective and replacement functions |
| WO2023115668A1 (en) * | 2021-12-22 | 2023-06-29 | 中山大学 | Conductive ink applied to display device, preparation method for conductive ink, and display device |
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Application publication date: 20190322 |