CN115639694A - Image display system - Google Patents

Abstract

The invention discloses an image display system, which can repeatedly carry out image display excitation under the influence of an image display excitation source, can display an image every time of image display excitation, and maintains the image display state under the action of the image display excitation source after the image display excitation source is cancelled. The system comprises image display carriers and image display excitation devices which are independent of each other, wherein one image display excitation device can carry out image display excitation on at least one image display carrier, and one image display carrier can be matched with at least one image display excitation device; the image display carrier comprises a plurality of coloring units for displaying images, the image display excitation device comprises a plurality of control parts for controlling the excitation state of at least one coloring unit, and the excitation state of the coloring unit comprises changing the self color and/or changing the self spatial position. The colored cells each have an excited steady-state display characteristic.

Description

Image display system

Technical Field

The invention relates to the technical field of display, in particular to an image display system.

Background

As is well known, paper is used as a printing carrier, and images and characters are printed objects, and both of them form an image display system, and until today, the technology is rapidly developed, so that the image display system cannot be separated. Although the printer can print on both sides of a sheet and thus save paper consumption, the contents printed on the sheet cannot be rewritten, that is, a sheet cannot be reused. Therefore, the huge consumption of paper remains a problem to be solved urgently.

Disclosure of Invention

The invention aims to solve the century difficult problem that paper cannot be reused, and provides an image display system which can repeatedly display and excite images under the influence of an image display excitation source, can display one image every time of image display excitation and can maintain the image display state under the action of the image display excitation source after the image display excitation source is cancelled.

An image display system provided by the present invention includes:

the image display activating device comprises an image display carrier and an image display activating device which are independent of each other, wherein one image display activating device can carry out image display activation on at least one image display carrier, one image display carrier can be matched with at least one image display activating device, and the image display activation is a process that the image display carrier displays an image under the action of an image display activating source which is provided by the image display activating device and carries image information;

the image display carrier comprises a plurality of coloring units for displaying images, the image display excitation device comprises a plurality of control parts for controlling the excitation state of at least one coloring unit, and the excitation state of the coloring unit comprises changing the self color and/or changing the self spatial position;

the coloring unit can be in a first excitation state under the action of a first image display excitation source, maintain the first excitation state after the action of the first image display excitation source is cancelled, and maintain the second excitation state under the action of a second image display excitation source carried by the coloring unit, and maintain the second excitation state after the action of the second image display excitation source is cancelled, wherein the first image display excitation source and the second image display excitation source are provided by the same image display excitation device or different image display excitation devices;

the image display carrier includes: the display material layer is tightly connected with the conductive base material layer;

the image display carrier further includes: the display material layer comprises a first water vapor blocking layer, a second water vapor blocking layer and a water vapor blocking material, wherein the first water vapor blocking layer covers the conductive base material layer, the second water vapor blocking layer covers the display material layer, and the side surfaces of the display material layer and the conductive base material layer are covered by the water vapor blocking material;

the image display excitation device comprises a first plate body, a second plate body, a power supply and a chip, wherein the first plate body is hinged with the second plate body, a first electrode plate with a plurality of control parts is arranged on one side, close to the first plate body, of the second plate body, and a second electrode plate is arranged on one side, close to the electrode plate, of the first plate body.

In the alternative,

the first plate body and/or the second plate body are made of transparent materials.

Optional

The control part is made of transparent material.

Alternatively to this, the first and second parts may,

the control part is a transparent thin film transistor or transparent glass.

Alternatively to this, the first and second parts may,

the transparent thin film transistor includes a-IGZOTFT, single crystal ZnOTFT and polycrystalline ZnOTFT.

Alternatively to this, the first and second parts may,

the image display carrier comprises a color filter layer tightly connected with the conductive material layer.

In the alternative,

matched bulges and matched depressions are arranged between the first plate body and the second plate body;

the protrusion is arranged on the first plate body, and the recess is arranged on the second plate body.

Alternatively to this, the first and second parts may,

the color unit includes at least one of photochromic particles, electrochromic particles, two-color spin spheres, cholesteric liquid crystals, pigment particles, and toner.

Alternatively to this, the first and second parts may,

the image display carrier comprises a medium which is distributed around the coloring units and is used for maintaining the spatial positions of the coloring units in a static state; the coloring unit in a stationary state is a coloring unit stationary with respect to the image display carrier;

the image display carrier includes a plurality of moving spaces, and at least one of the coloring units is movable in a medium within the moving spaces.

Alternatively to this, the first and second parts may,

the image display carrier comprises an ID which is matched with one image information in a plurality of image information provided by the image display excitation device; the image display activation device includes a reading unit that reads the ID and an acquisition unit that acquires image information that the ID matches.

The invention has the following beneficial effects:

the display system comprises an image display carrier and an image display activation device which are independent of each other, wherein the image display carrier comprises a plurality of coloring units for displaying images, the image display activation device comprises a plurality of control parts for controlling the activation state of at least one coloring unit, and the activation state of the coloring unit comprises changing the color and/or the spatial position of the coloring unit; the coloring unit can be in a first excitation state under the action of a first image display excitation source, maintain the first excitation state after the action of the first image display excitation source is cancelled, be in a second excitation state under the action of a carrying second image display excitation source, and maintain the second excitation state after the action of the second image display excitation source is cancelled. The image display carrier with the plurality of coloring units displays a first image under the action of a first image display excitation source carrying first image information, and maintains the display state of the first image after the action of the first image display excitation source is cancelled; and in the state of displaying the first image, displaying the second image under the action of a second image display excitation source carrying second image information, and after the action of the second image display excitation source is cancelled, maintaining the display state of the second image. The image display carrier realizes the function of image repeated refreshing under the action of the image display exciting device. The image display excitation device can carry out image display excitation on at least one image display carrier, one image display carrier can be matched with the at least one image display excitation device, and the image display excitation is a process that the image display carrier displays the image under the action of an image display excitation source which is provided by the image display excitation device and carries image information; the first image display excitation source and the second image display excitation source are provided by the same image display excitation device or by different image display excitation devices. Thereby releasing the limitation that one image display activating device can only correspond to one image display carrier.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of an image display system according to the present invention;

FIG. 2 is a schematic diagram of a first embodiment of an image display system according to the present invention;

FIG. 3 is a schematic diagram of a second embodiment of an image display system according to the present invention.

Detailed Description

Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood that the description is illustrative only and is not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The terms "a", "an" and "the", and the like, as used herein, are also intended to include the meaning of "a plurality" and "the" unless the context clearly indicates otherwise. Furthermore, the terms "comprises," "comprising," and the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.

All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. It is noted that the terms used herein should be interpreted as having a meaning that is consistent with the context of this specification and should not be interpreted in an idealized or overly formal sense.

First, the invention will be explained. The image display system comprises an image display carrier and an image display exciting device which are independent from each other, and the image display carrier and the image display exciting device are not in physical connection. One image display excitation device can carry out image display excitation on at least one image display carrier, one image display carrier can be matched with at least one image display excitation device, and the image display excitation is a process that the image display carrier displays the image under the action of an image display excitation source which is provided by the image display excitation device and carries image information; it will be appreciated that similar to a printer, a printer may print multiple sheets of paper, and that each sheet of paper may be adapted for a different type of printer. The image display carrier comprises a plurality of coloring units for displaying images, the image display activation device comprises a plurality of control parts for controlling the activation state of at least one coloring unit, and the activation state of the coloring unit comprises changing the self color and/or changing the self spatial position. The coloring units are core components of the image display carrier, the image display carrier can be understood as a sheet-shaped, thin and solid structure, thousands of coloring units or more are arranged in the image display carrier, the image display carrier presents images through the spatial arrangement and the colors of the coloring units, and when the colors or the spatial positions of the coloring units are changed, the images are changed.

The coloring unit can be in a first excitation state under the action of a first image display excitation source, maintain the first excitation state after the action of the first image display excitation source is cancelled, and be in a second excitation state under the action of a second image display excitation source, and maintain the second excitation state after the action of the second image display excitation source is cancelled. The above-mentioned characteristic of the coloring unit is also the core of the present invention, and the image display carrier can be reused, and the excited steady-state display of the coloring unit plays a decisive role. Since the first image display excitation source and the second image display excitation source are provided by the same image display excitation device or different image display excitation devices, one image display carrier can be matched with a plurality of image display excitation devices. The image display carrier realizes the function of image repeated refreshing under the action of the image display exciting device.

The current display technology mainly comprises a CRT, an LCD and an LED, wherein a CRT display mainly comprises an electron gun, a deflection coil, a shadow mask, a fluorescent powder layer, glass and the like, and the fluorescent powder is excited by electrons emitted by the electron gun; the LCD controls each liquid crystal particle to rotate to the surface with different colors through the TFT, thereby combining different colors and images; the LED displays an image by controlling a display mode of the semiconductor light emitting diode. The common feature of these displays is that the excitation means and the display means must be in one-to-one correspondence and not separable. The image display system of the present invention is essentially different from the existing displays in that the image display carrier and the image display activation means are separable from each other. The image display excitation device can carry out image display excitation on at least one image display carrier, one image display carrier can be matched with the at least one image display excitation device, and the image display excitation is a process that the image display carrier displays the image under the action of an image display excitation source which is provided by the image display excitation device and carries image information; the first image display excitation source and the second image display excitation source are provided by the same image display excitation device or by different image display excitation devices. Thereby releasing the limitation that one image display activating device can only correspond to one image display carrier.

It should be noted that the first image information and the second image information may be interpreted as two pieces of image information in a temporal sense, and the contents of the image information may be the same or different. In the first image display excitation source carrying the first image information and the second image display excitation source carrying the second image information, the carrying can be interpreted that the image information and the image display excitation source have a corresponding relation directly, and the image in the image information can be displayed under the action of the image display excitation source. The first image display excitation source and the second image display excitation source may be two image display excitation sources in terms of time, and may be the same or different from each other with respect to the image display excitation sources. Specific image display excitation sources may include temperature, acoustic, optical, electrical, and magnetic.

In practice, the image display carrier may be used as a shelf label. Shelf labels are generally installed near goods corresponding to a shelf, and are used for marking the price of the goods and other information of the goods, and paper labels are mostly adopted in the current market. Under the condition of using paper, when commodity information is frequently changed, a large amount of human resources and time resources are consumed, and the error rate is high. According to statistics, the time for manually replacing one price tag is at least two minutes, the tag loss rate is 2%, and the error rate is one ten thousandth to five ten thousandth. Paper price tags also involve labor costs for paper, ink, printing, and the like. In addition, in the case of paper price tags, the price change efficiency leads to price "fraud" caused by the price tag of the goods and the price of the cash register system not being uniform. Electronic Shelf labels (ESL, electronic Shelf Label System) are used as Electronic image display carriers for replacing traditional paper price labels, each Electronic Shelf Label is connected with a data base of a computer in a shopping mall through a wired or wireless network, and latest commodity prices are displayed through a screen on the Electronic Shelf labels. The electronic shelf label brings the shelf into a computer program, so that the condition of manually replacing the price label is avoided, and the price consistency between the cashier desk and the shelf is realized. The electronic shelf label system is quick and timely in price change, can finish price change of tens of thousands of price tags in a short time, can increase the price change promotion frequency by simultaneously finishing the butt joint with the cash register system, increases 3% of sales amount after replacing the electronic price tags according to statistics, and has the price change error rate of 0.00001%. However, there are still many problems with most electronic shelf labels on the market: first, these electronic shelf labels require batteries to supply power, and when the batteries are exhausted, they need to be manually replaced, thereby increasing the cost. If the replacement is not performed in time, the electronic tag is corroded by the outflow of the battery liquid, and the discarded battery causes environmental pollution if not properly disposed. Secondly, base stations are needed, which are limited by the coverage distance of the base stations, and are installed every 5 or 6 meters, and the base stations also need to be maintained, which further increases the cost. Moreover, easily receive electromagnetic interference, today of the high-speed development of science and technology, electromagnetic environment is complicated, and the 2.4GHz frequency channel is easily caused by signal interference such as WIFI to lose the antithetical couplet, and then the condition that the label content lost or can't in time update takes place easily. Finally, the debugging takes a long time, the system needs about one week for installation and debugging, and the base station, the tag and the system need to be tracked and maintained for a long time, which increases the labor cost. The above problems are urgently needed to be solved.

Compared with the existing electronic shelf label, the invention has the following advantages: because the image display carrier of the system cancels a battery in an electronic paper shelf label and a wireless module matched with necessary equipment such as a base station, a repeater and the like in the prior art, the system has the advantages of environmental protection and time resource saving. Because the link of matching and networking with the base station is cancelled, the system is not interfered by electromagnetism, and the technical problem that the existing system is difficult to maintain is solved. Furthermore, the image display carrier eliminates a chip and a glass substrate or a control component of a TFT, so that the image display carrier can be matched with a pair of image display excitation devices, and one image display excitation device can also be matched with a plurality of image display carriers. The electronic shelf label is free from the limitation that one electronic shelf label must correspond to one control component, and compared with the existing electronic shelf label, the cost is greatly reduced. The invention can be applied to the field of electronic shelf labels, and can also be applied to scenes such as conference table boards, doorplates, chest cards, factory information boards, traffic signboards, advertising display boards and the like.

The inventive concept of the present invention is described above in its entirety. The following will explain the components of the present system.

Coloring units in the present invention include, but are not limited to, the following: electrophoretic pigment particles, photochromic particles, electrochromic particles, two-color rotating spheres, cholesteric liquid crystals, and toner.

(1) Electrophoretic pigment particles

One structure of the electrophoretic pigment particle of the invention comprises a core and a shell layer, wherein the core is a pigment particle, and the shell layer comprises a high molecular polymer and a coupling agent for coupling the high molecular polymer and the pigment particle. The pigment particles comprise positive pigment particles, negative pigment particles or neutral pigment particles, and are specifically one or a combination of more than two of carbon black, copper chromium black, copper iron manganese black, iron black, titanium dioxide, zinc white, barium sulfate, iron oxide red, iron oxide yellow, ultramarine, chrome yellow, cadmium red, manganese violet, chrome green, iron blue and cobalt blue. The coupling agent is one or the combination of more than two of 3-aminopropyltriethoxysilane (KH 550), gamma- (2, 3-epoxypropoxy) propyltrimethoxysilane (KH 560), gamma- (methacryloyloxy) propyltrimethoxysilane (KH 570), gamma-mercaptopropyltrimethoxysilane (KH 580), N-beta- (aminoethyl) -gamma-aminopropyltrimethoxysilane (KH 792), vinylbenzylaminoethyl Aminopropyltrimethoxysilane (VAPMS) and isopropyltrioleate acyloxy titanate. In order to ensure that the average particle size of the electrophoretic pigment particles meets the requirement, the applicant needs to carry out micron treatment on the electrophoretic pigment particles, and in practical application, the micron treatment can be realized by selecting grinding, crushing, ultrasonic or solvent dispersion and other methods, and relevant equipment can comprise a colloid mill, a ball mill, a freezing crusher, an ultrasonic machine and the like. The particle size distribution, surface morphology, zeta potential, optical properties and chemical properties of the electrophoretic pigment particles are all related to the display of images.

(2) Cholesterol liquid crystal

The cholesteric Liquid Crystal (cholesteric Liquid Crystal) in the present invention includes a cholesteric Liquid Crystal and a nematic Liquid Crystal to which a polarizer is added or a nematic Liquid Crystal to which cholesteric Liquid Crystal molecules are added. In order to rapidly prepare cholesteric liquid crystals with different display wavelengths and different photoelectric characteristics according to requirements, a hybrid system of adding a light rotator to nematic liquid crystals is generally used as a main component. Nematic liquid crystals, after addition of a chiral agent, give rise to a helical structure in the liquid crystal material. When the cholesteric liquid crystal is placed in two horizontal substrates, the cholesteric liquid crystal tends to be arranged in a plane spiral mode under the condition of no electric field alignment, and under the condition of reflection according with specific light wavelength, colored light can be reflected, or the cholesteric liquid crystal is in a transparent state.

Two methods for achieving the bistable effect of the cholesteric liquid crystal are provided, one is surface stabilized dielectric stability (SSCT), the other is polymer stabilized dielectric stability (PSCT), and the PSCT technology utilizes a method of adding a small number of polymer monomers to achieve the effect of stabilizing the state of a planar spiral type or a vertical spiral type. In the aspect of material selection, a monofunctional group or bifunctional group acrylic or epoxy group high polymer monomer is adopted, or a high polymer monomer which simultaneously has a bifunctional group and a liquid crystal phase is used; or a polymeric monomer having a liquid crystalline phase.

The PSCT technology comprises two modes, one is a normal mode, and the other is an inversion mode. The common mode is to keep the vertical spiral line state stably under 0V, and in the manufacturing method, the liquid crystal, the optical rotation agent, the light initiator and the high molecular monomer are mixed according to a specific proportion, and the ITO substrate without surface treatment is used, and after the ITO substrate is filled, the electric field is applied to maintain the vertical arrangement state, and then the ultraviolet light is used for irradiation, and the effect of stabilizing the liquid crystal is achieved by utilizing the acting force between the high molecular monomer and the liquid crystal. The inversion mode is similar to the normal mode, except that polyimide (polyimide) is additionally added on the substrate, rubbing alignment is required, and then ultraviolet light is directly used under the condition of not applying an electric field, the intensity of the ultraviolet light must be weaker than that of the normal mode, and the irradiation time must be prolonged. As for SSCT surface-mounted liquid crystal, the purpose of improving display quality and effect is achieved mainly by changing the surface characteristics of the display panel. Because the bistable effect will be lost when the pitch of the cholesteric liquid crystal is too long, the vertical helical liquid crystal molecular structure generally applied to the cholesteric liquid crystal has too high activation energy to maintain the bistable state without applying an electric field, and therefore, the purpose of providing the stable state of the liquid crystal is achieved by changing the processing flow of the substrate surface on the premise of not changing the liquid crystal components. In this regard, the substrate process includes rough surface (RoughSurface), vertical alignment (hometropic alignment surface), and weak horizontal alignment (weak hometropic alignment surface). The proper vertical alignment technology is matched, so that the visual angle of the display can be improved. The reason for this is mainly because the vertical alignment can tilt the alignment direction of the liquid crystal, so that the incident light from the outside can be reflected to more different angles, thereby producing the effect of wide viewing angle. Despite this advantage, the alignment technique also has the result of a reduced reflectivity. If the alignment force is too large, the liquid crystal plane helical state will disappear, and therefore the bistable effect cannot be achieved, while if the proper horizontal alignment is matched, the reflectivity can be increased, but similarly, if the horizontal alignment force is too large, the vertical helical state of the liquid crystal will disappear, and the stable effect cannot be maintained. Materials commonly used in horizontal alignment include: polyimide (Polyimide), polyvinyl alcohol (polyvinyl alcohol), silicon oxide (silicone oxide), microgrooves (microgrooves), and linearly polarized ultraviolet light alignment (linear photopolymeization). Materials used for homeotropic alignment are: polyimide (Polyimide), polytetrafluoroethylene (Polytetrafluoroethylene), lecithin (Lecithin), ammonium salt (QuaternaryAmmonium), silicon derivative, HTAB or chromium complex (Cr-complexes), etc., depending on the use of the final product, in addition to the physical properties of the relevant materials.

(3) Double-color rotary ball

The two halves of the sphere are painted in different colors, such as white or black, and the direction is controlled by the electric field, and the white and black of the sphere display the image. Two-color spherical particles are uniformly coated on a support with a silicone rubber resin as a binder, and cavities around the particles are filled with a specific liquid, and the white hemisphere on the surface of the spherical particles is negative, and the black hemisphere is positive, and different charges are present between the two colors to form a dipole. If a negative charge pattern is applied to the surface of the sheet, the particles rotate, the dark hemisphere faces upward, if a positive charge is applied to the sheet surface, and the white hemisphere faces upward, so that an image can be displayed.

(4) Dichromatic dye liquid crystal

The dichromatic dye is permeated into the recordable liquid crystal molecules to form peritectic crystal, and voltage is applied to the liquid crystal to change the arrangement of the liquid crystal molecules and the absorption of the dye to form image. On the ITO transparent electrode, a mixed solution of liquid crystal, two-color dye and resin was applied to a 6 micrometer (μm) thick coating layer, the dye initially being in an irregular orientation and gray. But when the ion current is written into the image, the dye is oriented to produce a white image. If the medium is heated to above 60 deg.C, it returns to the original gray state, so that the image can be erased. Alternatively, the image may be formed by corona discharge, which is performed by a thermal head to thermally write a white color.

(5) Toner powder

Between two glass plates with transparent ITO electrodes, black and white particles are filled, and when voltage is applied, the particles move between the electrodes to display black and white. The black particles are conductive toner particles, and the white particles are fluorinated carbon particles that slide easily. A charge transport layer is coated on the ITO electrode, which acts to inject positive charge into the toner through the electrode. The black particles contacting the lower electrode are positively charged by charge injection from the charge transport layer, and move toward the upper electrode by coulomb attraction with the negative charge of the upper electrode, and at this time, the white particles move in the electrode layer. The black particles reaching the upper electrode are bonded to the charge transport layer as an insulating layer by coulomb force.

The foregoing illustrates the functional characteristics of the shading units. The description of the respective components of the image display carrier will be continued below. The coloring elements having the property of exciting a steady-state display are associated with a medium extending over their surroundings for maintaining the spatial position of the coloring elements in a static state, where static state is a relative concept and the static state of the coloring elements is relative to said image display carrier. The medium is not particularly limited herein. It is understood that the medium provides a resistance during the movement of the coloring unit, and provides a resistance against the gravity of the coloring unit after the coloring unit stops moving, and the medium is not particularly limited herein. It will be appreciated that the medium provides resistance during movement of the coloring unit and resistance to the weight of the coloring unit after the coloring unit has stopped moving, leaving the coloring unit in a relatively static state. In the case of electrophoretic particles, a dispersant, a thickener, a surface tension controlling agent and a charge controlling agent are distributed around the electrophoretic pigment particles. Wherein the dispersing agent comprises various non-polar and/or low-polar organic solvents and mixtures thereof, and the lower dispersing solvent comprises but is not limited to various aromatic hydrocarbons such as toluene, benzene, xylene, and halogenated hydrocarbons such as but not limited to chloroform, tetrachloroethylene, and the like; the non-polar dispersion solvent includes, but is not limited to, linear, branched and cyclic aliphatic hydrocarbons such as n-hexane, nonane, decane, synthetic isoparaffin (Isopar), synthetic paraffin (Norpar), synthetic cycloalkane (Nappar), synthetic alkane (Varsol/Naphtha), cyclohexane and halogenated hydrocarbons such as carbon tetrachloride; the thickener can be nonpolar polymer, including but not limited to polymethyl methacrylate, polyethylene, polypropylene, rubber such as polyisoprene, polyisobutylene, etc., wherein polymethyl methacrylate, polyisoprene, polyisobutylene are the best choice; in addition, the surface tension control agent can be one or the combination of more than two of glycerin monostearate, ethyl distearyl hydroxyethyl methyl ammonium methyl sulfate, ethyl tristearate hydroxyethyl methyl ammonium methyl sulfate, span20, span40, span60, span80, tween85 and alkyl tertiary amine salt; the charge control agent may be an organic sulfate, sulfonate, metal soap, organic amide, organic phosphate or phosphate, and may also be a polymer and a block or graft copolymer and their monomers. Polyisobutylene succinimide, metal soaps and lecithin poly or isobutylene and organosilicon derivatives may be selected as charge control agents.

The image display carrier comprises a plurality of moving spaces, and at least one coloring unit can move in a medium in the moving spaces. The electrophoretic liquid and the electrophoretic pigment particles dispersed in the electrophoretic liquid are wrapped in the moving space, so that the agglomeration of the electrophoretic pigment particles is effectively inhibited, and the stability and the service life of the image display carrier are improved. The moving space is provided with at least one of microcapsules and microcups. The microcapsule comprises the electrophoretic solution, electrophoretic pigment particles dispersed in the electrophoretic solution and at least one layer of capsule wall, wherein the capsule wall is formed by adopting a complex coacervation method or an in-situ polymerization method. In-situ polymerization, also called interfacial polymerization, adopts urea-formaldehyde resin or modified urea-formaldehyde resin as microcapsule wall material; the complex coacervation method adopts gelatin and Arabic gum as microcapsule wall materials. The microcups comprise electrophoretic fluid, electrophoretic pigment particles dispersed in the electrophoretic fluid and microcups, and the microcups can be cylinders which are small in size, have cavities and are sealed at the upper and lower surfaces. The microcups are prepared by die-casting the microcups by a microcup roller and hardening and forming by using ultraviolet rays, and then encapsulating electrophoretic pigment particles in electrophoretic fluid in the microcups by a specific method.

The image display carrier comprises a conductive material layer and a display material layer, wherein the conductive material layer and the display material layer are tightly attached, and the coloring unit is arranged in the display material. The purpose of displaying the image is realized by changing the spatial position of the position coloring unit. The precise control of the movement of the shading units, such as the control of the initial point coordinates of the shading units in a fixed space system, can realize the effect of further precise display. One method for preparing the display material layer in the invention is to mix transparent adhesive, display units containing electrophoretic liquid such as microcapsules or microcups and other solvents according to a predetermined proportion, stir the obtained mixed liquid uniformly and coat the mixed liquid on a base material. In the actual process, the mixed solution may be coated on the substrate by a slot extrusion coating process. The slot extrusion coating process can be that the coating material is extruded from an extrusion opening of a coating die head after being pressurized by a quantitative pump and coated on the surface of a substrate. The coating layer thickness can be determined according to the coating extrusion amount of the coating die and the running speed of the substrate. The applicant was able to preset the extrusion orifice gap and the extrusion orifice to back-roll spacing to achieve control of the process. And then curing, wherein the curing process can be realized at normal temperature, and in order to accelerate the curing speed, the rapid curing can be realized by heating, air box drying or photocuring and other conventional curing means. It is to be noted that coating methods such as knife coating, cast coating, brush coating, roll coating, spray coating, powder coating, and the like, and screen printing and inkjet printing processes may be employed instead of the slit extrusion coating process. The adhesive mentioned in the embodiment includes aqueous polyurethane emulsion or solvent type polyurethane emulsion, and specifically includes but is not limited to one or more of polyester diol, polyether diol, polyethylene glycol, small molecule chain extender and diisocyanate.

The structure of the image display carrier of the present invention includes, but is not limited to, a display material layer containing a curing medium and an electrophoretic fluid distributed in the curing medium and at least one electrophoretic pigment particle dispersed in the electrophoretic fluid; the display material layer is connected with the conductive material layer through an adhesive.

The components of the image display carrier of the present invention are explained above, and the components of the image display exciting means are explained below. The control part is an important component of the image display exciting device for exciting the image display carrier. The control part can be a conductive substrate arranged according to a preset rule, and specifically can be a TFT glass substrate, an FPC (flexible printed circuit) or a segment code glass substrate. A TFT glass substrate may be used when dot matrix display technology is used. Segment code glass substrates may be used when segment code display technology is employed.

The image display carrier of the present invention has an ID that matches one of the plurality of image information supplied from the image display excitation means; the image display activation device includes a reading unit that reads the ID and an acquisition unit that acquires image information matched with the ID. And the image display excitation device reads the ID, acquires the image information matched with the ID after traversing the locally stored image information, and provides an image display excitation source carrying the image information to excite the image display carrier. The purpose that the image display carrier automatically matches and displays images is further achieved by arranging DI in the image display carrier.

A specific embodiment of the image display system of the present invention will be explained below. Referring to fig. 1 and 2, a first embodiment of an image display system of the present invention includes:

the image display support 100B and the image display activation device 200B are independent of each other.

The image display carrier 100B includes: display material layer 101B and electrically conductive substrate layer 102B, display material layer 101B and electrically conductive substrate layer 102B are closely connected.

Both the display material layer 101B and the conductive base material layer 102B have conductivity. When the side of the conductive substrate layer 102B is used as the display surface, light sequentially passes through the conductive substrate layer 102B and reaches the display material layer 101B, in this case, the conductive substrate layer 102B needs to be made of a transparent material, and the display material layer 101B and the conductive substrate layer 102B can be connected together by a physical or chemical method, for example, by a transparent adhesive, physical adsorption, or chemical bonding. When the display surface is the display material layer 101B side, the conductive substrate layer 102B may be transparent or opaque.

It should be noted that, based on the prior art means, the display material layer cannot independently constitute the image display carrier, and needs to be attached to the substrate layer, and if the display material layer can independently constitute the image display carrier with the advancement of the technical means, the conductive substrate layer can be eliminated, and the essence of the future technical means does not depart from the spirit and scope of the technical solution of the embodiment of the present invention.

The image display excitation device 200B in this embodiment includes a cover plate 201B, a base plate 202B, and the cover plate 201B and the base plate 202B are hinged to each other. A first electrode plate 203B having a plurality of control portions is provided on one surface of the base plate 202B adjacent to the cover plate 201B, and a second electrode plate 205B is provided on one surface of the cover plate 201B adjacent to the electrode plate 203B.

In a specific application of this embodiment, the image display carrier 100B is disposed at the first electrode plate 203B between the first electrode plate 203B and the second electrode plate 205B, such that the display material layer 101A faces the first electrode plate 203B. After the cover plate 201B is pressed down, the display carrier 100A is in close contact with the first electrode plate 203B and the second electrode plate 205B. At this time, image display exciting device 200A supplies power to first electrode plate 203B and second electrode plate 205B, and an electric field is formed therebetween, and the control section excites the coloring unit.

To obtain the color display effect, the image display carrier 100B may include a color filter layer 103B, and the color filter layer 103B is tightly connected to the conductive substrate layer 102B, as shown in fig. 3. In the existing display technology, in order to obtain clear color display, generally, the horizontal positions of a color filter and a TFT array need to be aligned and then bonded together, the technical requirement of the alignment precision is extremely high, the error is within a few micrometers, and even the CCD operation process is difficult. Once the horizontal alignment is misaligned, the bond is made and rework correction of the product is not possible. In contrast to the prior art, the present embodiment does not have the bonding step, and the image display carrier and the control section are separated from each other. Even if the control part does not align the image display carrier with the control part, the image display carrier and the control part are separated from each other, so that the display can be activated again, and the rework correction can be realized.

A third embodiment of the image display system according to the present invention is explained below, in which at least one of the first plate body and the second plate body is made of a transparent material. When the control portion is made of a transparent material, the first plate body on which the control portion is mounted may be made of a transparent material, and the second plate body may be made of a transparent material or an opaque material, which is not specifically limited herein; or the second plate body for mounting the control part is made of a transparent material, and the first plate body can be made of a transparent material or an opaque material, which is not limited herein. For example, when the control part is made of a transparent material, the first plate body on which the transparent control part is installed is also made of a transparent material, and light can sequentially penetrate through the transparent first plate body and the transparent control part and reach the display material layer, so that the display state of the image display carrier can be visually observed in the process that the image display carrier is excited by the image display excitation device in the operation process. Thereby further improving the accuracy of the alignment of the control portion with the image display carrier.

The control portion may be transparent glass or a transparent Thin film transistor, and in this embodiment, the Thin-film transistor (TFT) is an insulated gate field effect transistor. The required carrier mobility of the TFT is about 1cm ² /VS～20cm ² /VS, amorphous InGaZnO with transparent character ₄ (a-JGZOTFT for short) or ZnOTFT can satisfy this requirement. The first electrode plate may be a TFT array. The second electrode plate may be ITO (Indium Tin oxide), also called a semiconductor transparent conductive film, and is obtained by forming a transparent Indium Tin Oxide (ITO) conductive film coating on a transparent organic film material, such as PET (Polyethylene terephthalate), PE (Polyethylene), PP (polypropylene), and the like, and performing a high temperature annealing process. The preparation method of the ITO transparent conductive film comprises the following stepsBut are not limited to evaporation, sputtering, reactive ion plating, chemical vapor deposition or pyrolytic spray. In practical application, the ITO transparent conductive film can be replaced by the conductive film such as graphene, silver powder or nano silver wires. Since graphene has extremely high advantages in conductivity and hardness, it is suitable for making conductive films. The preparation method of the graphene conductive film includes, but is not limited to, a chemical vapor deposition method and a redox method. The chemical vapor deposition can obtain large single-layer graphene with good quality, has performance advantages in light transmittance and surface resistance, and has the defects of complex process route, high cost, low yield, limited film area and the like. The redox method adopts a solution process, is convenient for realizing large-area continuous preparation by a roll-to-roll process, and has great advantage in cost. The silver powder conductive film takes silver conductor paste as a main material, wherein silver powder is taken as a conductive functional material, and the electrical conductivity and the thermal conductivity of the silver powder are mainly utilized. The silver powder can be divided into coarse silver powder and nano silver wires according to the particle size, wherein the nano silver wires with the average particle size of less than 0.1 mu m; the silver powder is coarse silver powder with the particle size of 0.1 mu m to Dav to 10.0 mu m. The nano silver wire has excellent conductivity of silver, and also has excellent light transmittance and flexibility resistance due to the size advantage of nano level, so that it can be used as a preferable material to replace ITO.

Finally, it should be noted that: the embodiments of the present invention are merely preferred embodiments of the present invention, which are merely used for illustrating the technical solutions of the present invention and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. An image display system, comprising:

the image display and excitation device comprises independent image display carriers and image display and excitation devices, wherein one image display and excitation device can perform image display and excitation on at least one image display carrier, one image display carrier can be matched with at least one image display and excitation device, and the image display and excitation is a process that the image display carriers display images under the action of an image display excitation source which is provided by the image display and excitation device and carries image information;

the image display carrier comprises a plurality of coloring units for displaying images, the image display excitation device comprises a plurality of control parts for controlling the excitation state of at least one coloring unit, and the excitation state of the coloring unit comprises changing the self color and/or changing the self spatial position;

the coloring unit can be in a first excitation state under the action of a first image display excitation source, maintain the first excitation state after the action of the first image display excitation source is cancelled, be in a second excitation state under the action of a second image display excitation source carried by a user, and maintain the second excitation state after the action of the second image display excitation source is cancelled, wherein the first image display excitation source and the second image display excitation source are provided by the same image display excitation device or different image display excitation devices;

the image display carrier includes: the display material layer is tightly connected with the conductive base material layer;

the image display excitation device comprises a first plate body, a second plate body, a power supply and a chip, wherein the first plate body is hinged with the second plate body, a first electrode plate with a plurality of control parts is arranged on one side, close to the first plate body, of the second plate body, and a second electrode plate is arranged on one side, close to the electrode plate, of the first plate body.

2. The image display system according to claim 1, characterized in that:

the first plate body and/or the second plate body are made of transparent materials.

3. The image display system according to claim 1, characterized in that:

the control part is made of transparent material.

4. The image display system according to claim 3, characterized in that:

the control part is a transparent thin film transistor or transparent glass.

5. The image display system according to claim 4, wherein:

the transparent thin film transistor includes a-IGZOTFT, single crystal ZnOTFT and polycrystalline ZnOTFT.

6. The image display system according to any one of claims 1 to 5, wherein:

the image display carrier comprises a color filter layer closely connected with the conductive material layer.

7. The image display system according to any one of claims 1 to 5, wherein:

matched bulges and matched depressions are arranged between the first plate body and the second plate body;

the protrusion is arranged on the first plate body, and the recess is arranged on the second plate body.

8. The image display system according to any one of claims 1 to 5, wherein:

the color unit includes at least one of photochromic particles, electrochromic particles, a two-color spin ball, a cholesteric liquid crystal, pigment particles, and toner.

9. The image display system according to any one of claims 1 to 5, wherein:

the image display carrier includes a medium extending over the coloring unit for maintaining a spatial position of the coloring unit in a stationary state; the coloring unit in a stationary state is a coloring unit stationary with respect to the image display carrier;

the image display carrier includes a plurality of moving spaces, and at least one of the coloring units is movable in a medium within the moving spaces.

10. The image display system according to any one of claims 1 to 5, wherein:

the image display carrier comprises an ID which is matched with one image information in a plurality of image information provided by the image display excitation device; the image display activation device includes a reading unit that reads the ID and an acquisition unit that acquires image information matched with the ID.

Images