CN215599955U - Electronic shelf label - Google Patents

Abstract

The utility model discloses an electronic shelf label, which can effectively improve the adaptability and the universality of the electronic shelf label and a shelf. The electronic shelf label comprises a plurality of coloring units for displaying images, at least one coloring unit is controlled by the image display excitation device to change the excitation state of the coloring unit, and the excitation state of the coloring unit comprises the display color and/or the change of the spatial position of the coloring unit; a display material layer, the coloring unit being disposed within the display material; the conductive material layer is tightly attached to the display material layer; and the magnetic absorption layer is in magnetic absorption connection with the goods shelf made of iron, cobalt or nickel and oxide materials thereof, is tightly attached to the display material layer or the conductive material layer, or is arranged on the outermost layer of the electronic goods shelf label.

Description

Electronic shelf label

Technical Field

The utility model relates to the technical field of display, in particular to an electronic shelf label.

Background

Electronic Shelf labels (ESL, Electronic Shelf Label System) as Electronic Shelf labels replacing traditional paper price labels, each Electronic Shelf Label is connected with a database 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 the 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, and changes the electronic price tags according to statistics.

The applicant finds that the electronic shelf label needs to be provided with a mounting part on the shell of the electronic shelf label during the process of mounting the electronic shelf label on the shelf, and a rail matched with the mounting part is mounted on the shelf, however, the mounting part and the rail need to be manufactured in an open die mode, and different mounting parts and rails need to be matched with electronic shelf labels and shelves with different sizes. Therefore, the workload is increased, and the adaptability and the universality of the electronic shelf label and the shelf are lower.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electronic shelf label, which can effectively improve the adaptability and the universality of the electronic shelf label and a shelf, is convenient and efficient and has strong practicability.

The electronic shelf label provided by the utility model has the advantages that one electronic shelf label can be matched with at least one image display excitation device, one image display excitation device can carry out image display excitation on at least one electronic shelf label, and the image display excitation is a process that the electronic shelf label displays an image under the action of an image display excitation source which is provided by the image display excitation device and carries image information;

the electronic shelf label includes:

a plurality of coloring units for displaying an image, at least one of the coloring units changing its own excitation state by the image display excitation means, the excitation state of the coloring unit including a display color and/or changing its own 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;

a display material layer, the coloring unit being disposed within the display material;

the conductive material layer is tightly attached to the display material layer;

and the magnetic absorption layer is in magnetic absorption connection with the goods shelf made of iron, cobalt or nickel and oxide materials thereof, is tightly attached to the display material layer or the conductive material layer, or is arranged on the outermost layer of the electronic goods shelf label.

Alternatively to this, the first and second parts may,

the electronic shelf label comprises a substrate layer to which a conductive material layer is attached.

Alternatively to this, the first and second parts may,

the substrate layer is closely connected with the conductive material layer, at least one conductive piece penetrates through the display material layer, one end of the conductive piece is in contact with the conductive material layer, and the other end of the conductive piece is exposed out of the display material layer.

Alternatively to this, the first and second parts may,

the substrate layer is a conductive substrate layer, and the display material layer is closely connected with the conductive substrate layer.

Alternatively to this, the first and second parts may,

the magnetic absorption layer is attached to the other side of the base material layer.

Alternatively to this, the first and second parts may,

and a plurality of magnet micro-powders are distributed in the substrate layer.

Alternatively to this, the first and second parts may,

a plurality of magnet micro powder are distributed in the magnetic attraction layer.

Alternatively to this, the first and second parts may,

the magnetic attraction layer comprises a transparent curing layer and a plurality of magnet micro powder distributed in the transparent curing layer.

Alternatively to this, the first and second parts may,

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

Optionally, the electronic shelf label comprises:

a medium disposed around the coloring unit for maintaining a spatial position of the coloring unit in a stationary state; the coloring unit in a static state is a coloring unit which is static relative to the electronic shelf label;

at least one of the coloring units is movable in a medium within a fixed moving space.

The utility model has the following beneficial effects:

the display system comprises an electronic shelf label and an image display activation device which are independent of each other, wherein the electronic shelf label 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 a display color and/or changes the self space 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 carrying second image display excitation source, and maintain the second excitation state after the action of the second image display excitation source is cancelled. Therefore, the electronic shelf label with a 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 electronic shelf label realizes the function of repeatedly refreshing images under the action of the image display exciting device. The image display excitation device can carry out image display excitation on at least one electronic shelf label, one electronic shelf label can be matched with at least one image display excitation device, and the image display excitation is a process that the electronic shelf label displays an 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. Therefore, the limitation that one image display excitation device can only correspond to one electronic shelf label is removed.

Further, the electronic shelf label of the utility model further comprises a display material layer, a conductive material layer and a magnetic absorption layer. The coloring unit is arranged in the display material; the conductive material layer is tightly attached to the display material layer; the magnetic absorption layer is tightly attached to the display material layer or the conductive material layer, or the magnetic absorption layer is arranged on the outermost layer of the electronic shelf label. The magnetic layer is used for being magnetically connected with a goods shelf made of iron, cobalt or nickel and oxide materials thereof. Because there is this electronic goods shelves label to have the magnetism to inhale the layer, can be directly inhale with goods shelves magnetism and be connected to need not set up the installed part on electronic goods shelves label's casing, also need not to install the track that matches this installed part on the goods shelves, not only alleviate work load, can effectively improve the adaptation degree and the commonality of electronic goods shelves label and goods shelves moreover, convenient high-efficient, the practicality is strong.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of an electronic shelf label according to the present invention;

FIG. 2 is a schematic structural diagram of a second embodiment of an electronic shelf label according to the present invention;

FIG. 3 is a schematic structural diagram of a third embodiment of an electronic shelf label according to the present invention;

fig. 4 is a schematic structural diagram of a fourth embodiment of an electronic shelf label 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 words "a", "an" and "the" and the like as used herein are also intended to include the meanings of "a plurality" and "the" unless the context clearly dictates 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 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 idea of the inventive structure of the present invention will be explained. The electronic shelf label comprises an electronic shelf label and an image display exciting device which are independent from each other, and the electronic shelf label and the image display exciting device are not in physical structural connection. The image display excitation device can carry out image display excitation on at least one electronic shelf label, one electronic shelf label can be matched with the at least one image display excitation device, and the image display excitation is a process that the electronic shelf label displays an image under the action of an image display excitation source which is provided by the image display excitation device and carries image information.

The electronic shelf label 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 a display color and/or changes the self space position. The coloring units are core components of the electronic shelf label, the electronic shelf label can be understood as a sheet-shaped thin solid structure, tens of thousands of coloring units are arranged in the electronic shelf label, the electronic shelf label presents images through the spatial arrangement and the color of the coloring units, and when the color or the spatial position of the coloring units is changed, the images are changed accordingly.

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 characteristic of the coloring unit is to excite the steady-state display, which is also the core of the utility model, the electronic shelf label can be reused, and the excitation 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 electronic shelf label can be matched with a plurality of image display excitation devices.

The electronic shelf label realizes the function of repeatedly refreshing images under the action of the image display exciting device. The image display excitation device can carry out image display excitation on at least one electronic shelf label, one electronic shelf label can be matched with at least one image display excitation device, and the image display excitation is a process that the electronic shelf label displays an 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. Therefore, the limitation that one image display excitation device can only correspond to one electronic shelf label is removed.

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 as that the image information and the image display excitation source have a corresponding relation, and the image in the image information can be displayed under the action of the image display excitation source. The first image display stimulus source and the second image display stimulus source may be two image display stimulus sources in terms of time, and may be the same or different from each other with respect to the image display stimulus sources. Specific image display excitation sources may include temperature, acoustic, optical, electrical, and magnetic.

Compared with the existing electronic shelf label, the utility model has the following advantages: because the electronic shelf label of the system cancels a battery in the 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 electronic shelf label cancels a chip and a glass substrate or a control component of a TFT, so that the electronic shelf label can be provided with a pair of a plurality of image display excitation devices, and one image display excitation device can also be matched with a plurality of electronic shelf labels. 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.

Further, the electronic shelf label of the utility model further comprises a display material layer, a conductive material layer and a magnetic absorption layer. The coloring unit is arranged in the display material; the conductive material layer is tightly attached to the display material layer; the magnetic absorption layer is tightly attached to the display material layer or the conductive material layer, or the magnetic absorption layer is arranged on the outermost layer of the electronic shelf label. The magnetic layer is used for being magnetically connected with a goods shelf made of iron, cobalt or nickel and oxide materials thereof. Because there is this electronic goods shelves label to have the magnetism to inhale the layer, can be directly inhale with goods shelves magnetism and be connected to need not set up the installed part on electronic goods shelves label's casing, the track of this installed part is matchd in the shelf location, not only lightens work load, can effectively improve the adaptation degree and the commonality of electronic goods shelves label and goods shelves moreover, convenient high-efficient, the practicality is strong.

The utility model is described above in its entirety. The following will explain the components of the present system.

The 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 comprises a core and a shell, wherein the core is a pigment particle, and the shell 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 (KH550), gamma- (2, 3-epoxypropoxy) propyltrimethoxysilane (KH560), gamma- (methacryloyloxy) propyltrimethoxysilane (KH570), gamma-mercaptopropyltrimethoxysilane (KH580), N-beta- (aminoethyl) -gamma-aminopropyltrimethoxysilane (KH792), 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 the method can be implemented by grinding, crushing, ultrasonic or solvent dispersion and the like in practical application, 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. After the nematic liquid crystal is added with the optical rotation agent, the liquid crystal material generates a helical structure. When the cholesterol liquid crystal is arranged in two horizontal substrates, the cholesterol liquid crystal tends to be arranged in a plane spiral type under the condition of not applying electric field alignment, and under the condition of reflecting according with specific light wavelength, colored light can be reflected or a transparent state is presented.

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 the 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 results in 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, Polytetrafluoroethylene, Lecithin, ammonium salts (QuaternaryAmmonium), silicon derivatives, HTAB or chromium complexes (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 black hemisphere faces upward, if a positive charge is applied to the surface of the sheet, and the white hemisphere faces upward, so that an image can be displayed.

(4) Dichromatic dye liquid crystal

A bichromal dye is permeated into recordable liquid crystal molecules to form peritectic crystals, 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 an 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. However, when the ion current is written into the image, the dye is oriented to produce a white image. If the medium is heated to 60 deg.C or higher, 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

Black particles and white particles are filled between two glass plates with ITO transparent electrodes, and the particles move between the electrodes under the action of an external voltage, so that black and white can be displayed. 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 following description will be continued on the respective components of the electronic shelf label. The coloring unit has a property of exciting a steady-state display in relation to a medium extending over its surroundings for maintaining the spatial position of the coloring unit in a stationary state, where stationary is a relative concept and stationary is relative to said electronic shelf label. The medium is not particularly limited herein. It is to be 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 macromolecule, 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 tristearyl 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 electronic shelf label 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 electronic shelf label 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 with small size, cavities and sealed 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 electronic shelf label 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 achieved 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 preparation method of the display material layer is to mix transparent adhesive, display units containing electrophoretic fluid, such as microcapsules or microcups, and other solvents according to a predetermined proportion, and coat the obtained mixed solution on a substrate after uniformly stirring. 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 backing 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 instead of the slit extrusion coating process, coating methods such as a blade coating method, a casting coating method, a brush coating method, a roll coating method, a spray coating method, a powder coating method, and the like, and screen printing and inkjet printing processes may be employed. The adhesive mentioned in the embodiment comprises an aqueous polyurethane emulsion or a solvent type polyurethane emulsion, and specifically includes but is not limited to one or more of polyester diol, polyether diol, polyethylene glycol, a small molecule chain extender and diisocyanate.

The structure of the electronic shelf label 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 conductive material layer in the present invention may be ITO (Indium Tin Oxides), 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 high temperature annealing treatment. The preparation method of the ITO transparent conductive film comprises but is not limited to evaporation, sputtering, reactive ion plating, chemical vapor deposition or pyrolytic spraying and other process methods. 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 the production of 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 have the average particle size of less than 0.1 mu m; 0.1 μm < Dav <10.0 μm is a crude silver powder. 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.

The components of the electronic shelf label of the present invention are explained above, and the components of the image display activation device are explained below. The control unit is an important component of the image display activation device for activating the electronic shelf label. 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 electronic shelf label of the utility model has an ID which is matched with one image information in a plurality of image information provided by the image display exciting 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. 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 electronic shelf label. The purpose of automatically matching and displaying the image of the electronic shelf label is further achieved by setting the ID in the electronic shelf label.

A specific embodiment of the electronic shelf label of the present invention will be explained below. Referring to fig. 1, a first embodiment of an electronic shelf label of the present invention includes:

the electronic shelf label 100A includes: display material layer 101A, conductive material layer 102A, substrate layer 103A, and conductor 104A. The display material layer 101A is tightly connected to the conductive material layer 102A, and the substrate layer 103A is tightly connected to the conductive material layer 102A. The conductive member 104A penetrates the display material layer 101A, and has one end contacting the conductive material layer 102A and the other end exposing the display material layer 101A.

In order to further improve the magnetic force, a plurality of fine magnet powders are distributed in the base layer 103A, and fine neodymium magnet powders may be used, which are invented by the zuochuan man of sumitomo special metals company in 1982 and mainly composed of chemical elements such as neodymium, iron, and boron by the chemical formula thereof, and the neodymium iron boron magnet is a magnet which is found to have the highest commercialization performance at present and is called "magman", and has extremely high magnetic performance and the maximum magnetic energy product thereof is more than 10 times higher than ferrite.

The conductive material layer 102A has conductivity. The base material layer 103A may have conductivity or not. When one side of the substrate layer 103A is used as a display surface, light needs to sequentially pass through the substrate layer 103A and the conductive material layer 102A to reach the display material layer 101A, in this case, the substrate layer 103A and the conductive material layer 102A need to be made of transparent materials. The display material layer 101A and the conductive material layer 102A may be physically or chemically bonded to each other, for example, by a transparent adhesive, physical adsorption, or chemical bonding. When the display surface is the side of the display material layer 101A, the conductive material layer 102A may be transparent or opaque, the substrate layer 103A may be transparent or opaque, a transparent adhesive or an opaque adhesive may be used between the conductive material layer 102A and the substrate layer 103A, or the above physical or chemical methods may be used to connect them together. It should be noted that the display material layer 101A may be provided with a through hole, and a conductive filler is poured into the through hole, and the conductive filler forms the conductive member 104A after being cured.

Referring to fig. 2, a second embodiment of the electronic shelf label of the present invention is different from the first embodiment in that the magnetic absorption layer 105A is attached to the other surface of the substrate layer 103A.

Specifically, neodymium magnet micro powder can be used, the distribution amount of neodymium magnets can be controlled to ensure the transparency of the transparent curing layer, and the transparent curing layer can adopt transparent adhesive such as transparent epoxy resin.

In this embodiment, compared to the first embodiment, the substrate layer in the second embodiment may not contain the magnetic micro powder, and is suitable for most of the substrates in the market at present, and the substrate layer does not need to be manufactured again. The difference is that a magnetic absorption layer needs to be attached to a base material layer, so that the process is increased, the cost is reduced compared with the process for preparing the base material containing the magnetic fine powder, and the method is more suitable for actual production.

Referring to fig. 3, a third embodiment of the electronic shelf label of the present invention includes:

a display material layer 101B and a conductive substrate layer 102B, the display material layer 101B being tightly connected to the conductive substrate layer 102B.

The magnetic absorption layer 103B is closely attached to the conductive base material layer 102B.

It should be noted that the magnetic attraction layer includes a transparent curing layer and a plurality of magnet micro powders distributed in the transparent curing layer, specifically, neodymium magnet micro powders may be used, and the specific structure of the magnetic attraction layer has already been described in the above embodiments, and is not described herein again.

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 to reach 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.

Referring to fig. 4, a fourth embodiment of the electronic shelf label of the present invention is different from the third embodiment in that the magnetic attraction layer 103B is closely attached to the display material layer 101B.

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.

In the third and fourth embodiments, it is necessary to consider which surface of the electronic shelf label is the fixing surface and which surface is the display surface in specific applications. Generally, magnetism is inhaled the layer and is needed to be set up in one side of non-display surface, and the one side that the layer place was inhaled to magnetism is used for this electronic shelf label in goods shelves fixed connection, therefore magnetism is inhaled the layer and is needed to set up in one side of non-display surface. If the conductive substrate layer is the display surface, the magnetic absorption layer is attached to the display material layer, otherwise, the magnetic absorption layer is attached to the conductive substrate layer.

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 electronic shelf label is characterized in that one electronic shelf label can be matched with at least one image display excitation device, one image display excitation device can carry out image display excitation on at least one electronic shelf label, and the image display excitation is a process that the electronic shelf label displays an image under the action of an image display excitation source which is provided by the image display excitation device and carries image information;

the electronic shelf label includes:

a plurality of coloring units for displaying an image, at least one of the coloring units changing its own excitation state by the image display excitation means, the excitation state of the coloring unit including a display color and/or changing its own 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;

a display material layer, the coloring unit being disposed within the display material;

the conductive material layer is tightly attached to the display material layer;

and the magnetic absorption layer is in magnetic absorption connection with the goods shelf made of iron, cobalt or nickel and oxide materials thereof, is tightly attached to the display material layer or the conductive material layer, or is arranged on the outermost layer of the electronic goods shelf label.

2. An electronic shelf label as defined in claim 1, comprising a substrate layer to which the layer of conductive material is attached.

3. The electronic shelf label as defined in claim 2, wherein:

the substrate layer is closely connected with the conductive material layer, at least one conductive piece penetrates through the display material layer, one end of the conductive piece is in contact with the conductive material layer, and the other end of the conductive piece is exposed out of the display material layer.

4. The electronic shelf label as defined in claim 2, wherein:

the substrate layer is a conductive substrate layer, and the display material layer is closely connected with the conductive substrate layer.

5. The electronic shelf label as defined in claim 2, wherein:

the magnetic absorption layer is attached to the other side of the base material layer.

6. The electronic shelf label as defined in claim 2, wherein:

and a plurality of magnet micro-powders are distributed in the substrate layer.

7. Electronic shelf label as defined in any of claims 1-6, characterized in that:

a plurality of neodymium magnet micro powders are distributed in the magnetic attraction layer.

8. Electronic shelf label as defined in any of claims 1-6, characterized in that:

the magnetic attraction layer comprises a transparent curing layer and a plurality of magnet micro powder distributed in the transparent curing layer.

9. Electronic shelf label as defined in any of claims 1-6, characterized in that:

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

10. An electronic shelf label as defined in any of claims 1-6, comprising a medium extending over the coloring unit for maintaining the spatial position of the coloring unit in a static state; the coloring unit in a static state is a coloring unit which is static relative to the electronic shelf label;

at least one of the coloring units is movable in a medium within a fixed moving space.

Images