CN115273690A

CN115273690A - Identity recognition device

Info

Publication number: CN115273690A
Application number: CN202110483924.1A
Authority: CN
Inventors: 王喜杜; 陈万里; 胡典禄; 唐锐
Original assignee: Foshan Yishi Zhilian Technology Co ltd
Current assignee: Foshan Yishi Zhilian Technology Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2022-11-01

Abstract

The invention discloses an identity recognition device, which can ensure the normal display effect without installing a battery, has the characteristics of small size and light weight due to the elimination of the battery, and ensures that the shell is thinner and lighter and is more convenient to connect because the edge of the shell is provided with a bulge for being connected with the outside. The identity recognition device comprises: the display screen comprises a shell (01) and a bistable display screen arranged inside the shell (01), wherein at least one surface of the shell (01) can be used for viewing the bistable display screen; the bistable display screen comprises a display component (101), at least one physical interface (102) coupled with the display component (101), a first receiving circuit (103) and a second receiving circuit (104); the display assembly (101) comprises at least one driver IC (1011); the physical interface (102) comprises a physical connecting part (1021) and at least one electric connecting part, wherein the main body is physically butted with a burning device; the electrical connection is coupled to and extends outwardly from the body.

Description

Identity recognition device

Technical Field

The invention relates to the technical field of electrophoretic display, in particular to an identity recognition device.

Background

The chest card is also called chest number card, number plate, carving card, work number card, badge or chest card, and can be a card for showing the working identity in front of the chest or a number or introduction small badge hung or buckled on the left side of a jacket, and most badges worn on western-style clothes, formal clothes and western-style clothes play a role in introduction. The chest plate is generally rectangular and is about 2-3cm in size, one or more of enterprise names, enterprise LOGO, names, numbers, jobs, affiliated departments, enterprise images and the like can be placed on the chest plate, and the chest plate is relatively small in specification, so that the contents on the chest plate are as brief as possible. The system is mainly suitable for enterprise companies, central institutions, public service business halls and service windows of various industries, and has no field limitation.

The traditional chest card material generally takes paper, plastic, aluminum alloy plate or stainless steel and the like as a carrier, and displays the display content in the carrier through printing, laser and other modes, so that the traditional chest card is a disposable and unchangeable chest card display mode. The traditional non-electronic chest card has the advantages of low cost and more styles, but has the disadvantages of unchangeable content, no regeneration after use and no environmental protection. At present, the display content of the electronic chest card is changeable, characters and graphs with different colors can be displayed according to different colors of LEDs, and the displayed characters and graphs can be moved and are favored by users. However, the current electronic chest card generally adopts an LED dot matrix screen as a display device, so that the power consumption is large, and frequent charging easily causes safety accidents.

In order to provide an energy-saving and environment-friendly electronic chest card capable of realizing reutilization, a patent with the publication number of CN108877691A adopts an electronic paper display screen. However, even if the battery needs to be installed inside the electronic chest card, the cost is increased, and the size, thickness and weight of the electronic chest card are difficult to control due to the volume of the power supply circuit. Therefore, it is highly desirable to provide an electronic chest card that does not require a battery. In order to solve the above problems, the related manufacturers have tried to solve the problems without diligent attention, but it has not been known that suitable designs have been developed and completed for a long time, and there is no appropriate method for solving the above problems in general, which is obviously a problem that the related manufacturers want to solve. Therefore, how to create a new identification device is one of the important research and development issues, and is also an object of great improvement in the industry.

Disclosure of Invention

The invention provides an identity recognition device, which effectively solves the problems in the prior art, can ensure the normal display effect without installing a battery, has the characteristics of small size and light weight due to the elimination of the battery, and ensures that the shell is thinner and is more convenient to connect because the edge of the shell is provided with a bulge for external connection.

The identity recognition device comprises: the display screen comprises a shell and a bistable display screen arranged inside the shell, wherein at least one face of the shell can see the bistable display screen;

the bi-stable display screen comprises a display component, at least one physical interface coupled with the display component, a first receiving circuit and a second receiving circuit;

the display assembly includes at least one driving IC;

the physical interface includes: the main body is physically butted with a physical connecting part and at least one electric connecting part of a burning device;

the electrical connection portion is coupled to and extends outwardly from the body, the electrical connection portion including at least 1 first electrical connection portion and at least one second electrical connection portion;

the first receiving circuit is coupled to the at least one first electrical connection at one end and coupled to the driving IC at the other end, and is configured to respond to a docking event with the burning device, wherein the response is used for receiving a power supply signal provided by the connected burning device through the first electrical connection;

the second receiving circuit is coupled to the at least one second electrical connection at one end and coupled to the driving IC at the other end, and is configured to respond to a docking event with the burning device, wherein the response is used for receiving a display signal sent by the connected burning device through the second electrical connection;

the driving IC drives the display assembly to display according to the display signal and the power supply signal;

the edge of the shell is provided with a bulge;

the opening of the physical interface is arranged on the bulge;

the bulges are provided with fixing parts for fixing the identity recognition device.

In the alternative,

the fixing piece is a through hole which is arranged on the protrusion and is used for the hanging rope to pass through.

In the alternative,

the fixing piece is a needle-shaped body arranged on the protrusion.

Optionally, the identity recognition apparatus includes:

an NFC coil;

the NFC coil receives the identity identification information sent by the burning equipment through electromagnetic induction;

the identification information is matched with the display content of the bistable display screen.

In the alternative,

the shell comprises a transparent cover plate and a bottom shell;

and the transparent cover plate is buckled with the bottom shell.

Alternatively to this, the first and second parts may,

the transparent cover plate is arranged in the bottom shell in an interference mode.

Alternatively to this, the first and second parts may,

the transparent cover plate is bonded with the bottom shell.

In the alternative,

the bottom shell is provided with a reinforcing rib;

the lower edge of the reinforcing rib is fixedly connected with the inner side of the bottom surface of the bottom shell.

Alternatively to this, the first and second parts may,

the upper edge of the reinforcing rib is flush with the upper edge of the bottom shell.

Alternatively to this, the first and second parts may,

the upper edge of the reinforcing rib is abutted against the upper edge of the bottom shell to form a step part;

the transparent cover plate is abutted against the step part.

Compared with the prior art, the invention has the following beneficial effects:

although the identity recognition device does not comprise a battery, the identity recognition device can be in butt joint with the burning equipment through a physical interface. The first receiving circuit receives a power supply signal provided by the connected burning equipment through the first electric connection part; and the second receiving circuit receives the display signal sent by the connected burning equipment through the second electric connection part. The IC drives the display element by a display signal and a power supply signal. The edge of the shell is provided with a bulge, and the bulge is provided with a physical interface and a fixing piece for fixing the identity recognition device. This identification device need not the battery, and consequently the volume size all can reduce, has small and exquisite light characteristics, and this product is lighter thinner wears more comfortablely, has avoided the problem of frequent change battery simultaneously, is equipped with protruding and supplies external connection on the casing edge simultaneously, guarantees that the casing is lighter and thinner, it is more convenient to connect.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is an exploded view of an embodiment of an identification appliance of the present invention;

FIG. 2 is a schematic structural diagram of an embodiment of an identification device of the present invention;

FIG. 3 is a front view of a bistable display screen in another embodiment of the identification device of the present invention;

FIG. 4 is a schematic structural diagram of a physical interface in an embodiment of an identity recognition apparatus according to the present invention;

FIG. 5 is a schematic diagram of an internal structure of an embodiment of an identification device of the present invention;

FIG. 6 is a left side view of an embodiment of an identification appliance of the present invention;

FIG. 7 is a bottom view of an embodiment of the identification appliance of 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.

Some block diagrams and/or flow diagrams are shown in the figures. It will be understood that some blocks of the block diagrams and/or flowchart illustrations, or combinations thereof, can be implemented by computer program instructions. These computer program instructions may be provided to a processing unit of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the instructions, which execute via the processing unit, create means for implementing the functions/acts specified in the block diagrams and/or flowchart block or blocks.

Accordingly, the techniques of this disclosure may be implemented in hardware and/or software (including firmware, microcode, etc.). In addition, the techniques of this disclosure may take the form of a computer program product on a computer-readable medium having instructions stored thereon for use by or in connection with an instruction execution system. In the context of this disclosure, a computer-readable medium may be any medium that can contain, store, communicate, propagate, or transport the instructions. For example, the computer readable medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, device, or propagation medium. Specific examples of the computer readable medium include: magnetic storage devices, such as magnetic tape or Hard Disk Drives (HDDs); optical storage devices, such as compact disks (CD-ROMs); a memory, such as a Random Access Memory (RAM) or a flash memory; and/or wired/wireless communication links.

In order to solve the above technical problem, an embodiment of an identification apparatus provided by the present invention, please refer to fig. 1 and fig. 2, which specifically includes: the display screen comprises a shell 01 and a bistable display screen arranged inside the shell 01, wherein at least one surface of the shell 01 can be used for viewing the bistable display screen.

It should be noted that the housing 01 may be a flat structure with a cavity therein, and the bistable display screen is mounted in the cavity. The housing 01 may surround or semi-surround the bi-stable display screen, and at least one side of the housing 01 can view the bi-stable display screen. The part of the shell 01, which shields the display surface of the bistable display screen, can be a transparent cover plate 04 or hollow. The shell 01 can be integrally molded by plastic package, or can be an upper split body and a lower split body with a buckling structure, or at least one opening is formed in one surface, and the bistable display screen can enter and exit through the opening. The housing 01 will not be described in further detail herein.

The edge of the shell 01 is provided with a bulge 02; the opening of the physical interface 102 is arranged on the protrusion 02;

in this embodiment, since the physical interface 102 has a certain thickness, if the thickness of the housing 01 is adapted to the thickness of the physical interface 102, the width of the housing 01 cannot be made thinner. Thus, a projection 02 is provided on the edge of the housing 01, and the thickness of the projection 02 or the thickness of the projection 02 in combination with the housing is adapted to the physical interface 102. Other parts of the shell can be made thinner.

The protrusion 02 is provided with a fixing member for fixing the identification device.

Further, the fixing member is a through hole 021 provided on the protrusion 02 and through which the hanging rope passes.

The fixing member is a needle-like body 022 provided on the projection 02.

It should be noted that, referring to fig. 6 and 7, the through hole 021 of the protrusion 02 of the peripheral device is threaded through the hanging rope, and the through hole 021 can be designed to be thicker or wider so as to increase the stability of the structure. The needle 022 may be a pin, a brooch, or the like. If the structure of the through hole 021 is convenient for connecting a threading rope, if the structure of the needle-shaped body 022 is convenient for a user to hold the identity recognition device and then to be fixed on clothes.

It should be noted that the above-mentioned fixing elements provided on the protrusion 02 can avoid that the thickness of the housing 01 is not sufficient to provide thicker or wider fixing elements, such as the above-mentioned rope-hanging through-holes, the fixing seats of the brooch and the pin. Further making the device lighter and thinner.

The bistable display panel has a bistable characteristic (b i-sto a b l e), that is, a characteristic that power is consumed only when a screen is changed and no power is consumed when a still screen is displayed. The bistable display screen utilizes a reflective ambient light source to enable a viewer to see clearly displayed pictures, and has the characteristics of high contrast, wide viewing angle of 180 degrees, light and thin module thickness, reusability, environmental protection and the like.

Referring to fig. 3 and 4, the bistable display screen includes a display module 101, a physical interface 102, a first receiving circuit 103 and a second receiving circuit 104, the display module 101 includes at least one driving IC1011; the driver IC1011 is not limited to a Central Processing Unit (CPU), or other Programmable general purpose or special purpose Microprocessor (Microprocessor), digital Signal Processor (DSP), programmable controller, application Specific Integrated Circuit (ASIC), programmable Logic Device (PLD), other similar Processing Circuits, or a combination thereof. The driver IC1011 may be designed to accommodate custom communication protocols.

In this embodiment, the physical interface 102 may be disposed at a non-display surface, i.e., a surface on which a display screen is not disposed. When the physical interface 102 is turned on, it is considered to establish a transmission link with the recording device and trigger a docking event.

The physical interface 102 includes: the main body, a physical connecting part 1021 and at least one electric connecting part are used for physically butting with the burning device;

the electrical connection portion is coupled to and extends outwardly from the body, and includes at least one first electrical connection portion 1022A and at least one second electrical connection portion 1022B.

In this embodiment, the electrical connection portion refers to a contact or a lead in a physical interface, and may be connected or coupled with other circuits by soldering or other physical connection manners, and the first electrical connection portion 1022A and the second electrical connection portion 1022B are two types of electrical connection portions that implement different functions in this embodiment, it can be understood that the first electrical connection portion 1022A and the second electrical connection portion 1022B may be contacts or leads having the same shape and structure, and the electrical connection portions may be configured in different numbers according to actual requirements. It is understood that the first electrical connection part 1022A and the second electrical connection part 1022B may also be of different structures.

The first receiving circuit 103 has one end coupled to the at least one first electrical connector 1022A and the other end coupled to the driving IC1011, the first receiving circuit 103 is configured to respond to a docking event with a programming device, and the response is used for receiving a power signal provided by the connected programming device through the first electrical connector 1022A;

the second receiving circuit 104 has one end coupled to the at least one second electrical connector 1022B and the other end coupled to the driving IC1011, and the second receiving circuit 104 is configured to respond to a docking event with the burning device, where the response is used to receive a display signal sent by the connected burning device through the second electrical connector 1022B.

In this embodiment, the identification apparatus may not include a battery, but may interface with the burning device through the physical interface 102. The first receiving circuit 103 receives a power supply signal provided by the connected burning device through the first electrical connector 1022A; the second receiving circuit 104 receives the display signal sent by the connected burning device through the second electrical connection part 1022B. The IC1011 drives the display element 101 for display by means of a display signal and a power supply signal. The display content may include a business name, a business LOGO, a name, a photograph, a number, a job title, a department of the business, a business image, and the like. The identity recognition device does not need a battery, so the volume and the size can be reduced, the product can be lighter, thinner and more comfortable to wear as far as possible, and the problem of frequent battery replacement is avoided.

Another embodiment of the identity recognition apparatus provided by the present invention is different from the foregoing embodiments in that: the physical interface 102 includes a Universal Serial Bus (USB) interface, specifically including USB-A, USB-B, micro USB, and Type-C. Further comprising, for example, at least one of a Lightning Interface for a mobile phone, a High Definition Multimedia Interface (HDMI) USB-A, USB-B, a Micro USB, a Type-C, a Lightning, an HDMI, and a male and/or female header or pin and/or pin header of a serial port, whereby combinations may be produced comprising:

1. the physical interfaces of the driving device and the bistable display screen are both provided with male heads, and can be connected by adopting data lines with female heads at both ends;

2. the driving device and the physical interface of the bistable display screen are both provided with female heads, and can be connected by adopting a data line with male heads at both ends;

3. the physical interface of the driving device is a male head, and the physical interface of the bistable display screen is a female head, so that the display device can be inserted into the driving device, and the display device and the driving device can be connected by a data line with one end being the male head and the other end being the female head;

4. the physical interface of the bistable display screen is a female head, and the physical interface of the driving device is a male head, so that the driving device can be inserted into the display device, and the applicant finds that the structure is more suitable for the requirement of an actual application scene through research;

5. the physical interfaces of the driving device and the bistable display screen are both provided with pin headers, and can be connected by adopting data lines with pin header seats at both ends;

6. the physical interfaces of the driving device and the bistable display screen are both provided with pin header seats, and can be connected by adopting data lines with pin headers at both ends;

7. the physical interface of the driving device is a pin header, and the physical interface of the bistable display screen is a pin header, so that the display device can be inserted into the driving device, and the pin header can be connected by a data line with one end being the pin header and the other end being the pin header;

8. the physical interface of the bistable display screen is a pin header, and the physical interface of the driving device is a pin header, so that the driving device can be inserted into the display device.

Scenarios 5-8 may set the size of the physical interface smaller than scenarios 1-4. Compared with the schemes 5 to 8, the schemes 1 to 4 are more convenient to interface although the physical interface is slightly larger in size.

Another embodiment of the identity recognition apparatus provided by the present invention is different from the foregoing embodiments in that: in this embodiment, the display module includes: an electrophoretic Display (EPD), an electrowetting Display (EWD), a Cholesteric Liquid Crystal Display (CLCD), or other Bi-stable Display (Bi-stable Display), but the invention is not limited thereto.

In this embodiment, the core elements of the electrophoretic display panel are electrophoretic pigment particles, and the particle size distribution, the surface morphology, the delta-potential, the optical performance and the chemical performance of the electrophoretic pigment particles play a key role in the contrast, the response time, the definition and the service life of the electronic paper. The electrophoretic display technology is that charged pigment particles are stably dispersed in a non-aqueous dispersion medium containing dye by utilizing the electrophoretic principle in colloid chemistry, so that the dispersed phase and the dispersion medium present contrast, and charged pigment ions move to the surface of an electrode under the action of an electric field to display an image.

In this embodiment, one structure of the electrophoretic pigment particle includes a core and a shell layer, the core is a pigment particle, and the shell layer includes 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-glycidoxy) propyltrimethoxysilane (KH 560), gamma- (methacryloyloxy) propyltrimethoxysilane (KH 570), gamma-mercaptopropyltrimethoxysilane (KH 580), N-beta- (aminoethyl) -gamma-aminopropyltrimethoxysilane (KH 792), vinylbenzylaminoethylaminopropyltrimethoxysilane (VAPMS) and isopropyltrioleoxy 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 main components of the electrophoretic fluid include, but are not limited to, a dispersant, a thickener, a surface tension controlling agent, and a charge controlling agent. 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; non-polar dispersing solvents include, but are 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 selected from 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 electrophoretic liquid and the electrophoretic pigment particles dispersed in the electrophoretic liquid are wrapped in the display unit, so that the agglomeration of the electrophoretic pigment particles is effectively inhibited, and the stability and the service life of the display device are improved. The display unit in this embodiment may include at least one of a microcapsule and a microcup. The microcapsule in this embodiment includes the electrophoretic solution, electrophoretic pigment particles dispersed in the electrophoretic solution, and at least one layer of capsule wall, where the capsule wall is formed by complex coacervation or in-situ polymerization. The in-situ polymerization method can also be called as an interfacial polymerization method, and urea-formaldehyde resin or modified urea-formaldehyde resin is adopted as a microcapsule wall material; the complex coacervation method adopts gelatin and Arabic gum as microcapsule wall materials. The microcups in this embodiment include an electrophoretic fluid, and electrophoretic pigment particles and microcups dispersed in the electrophoretic fluid, and the microcups may be cylinders having a small size, a cavity, and upper and lower surfaces sealed. 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 structure of the display device in this embodiment includes, but is not limited to, a display 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 layer is connected with the transparent conductive layer through an adhesive.

In one method for preparing the display layer in this embodiment, a transparent adhesive, a display unit containing an electrophoretic fluid, such as a microcapsule or a microcup, and other solvents are mixed in a predetermined ratio, and the obtained mixed solution is uniformly stirred and then coated on a substrate. 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 transparent conductive layer 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 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.

Referring to fig. 4, another embodiment of an identification apparatus provided in the present invention is different from the foregoing embodiments in that:

the driver IC1011 is connected to a flexible printed circuit board 1012, and the other end of the flexible printed circuit board 1012 is connected to the first electrical connection portion 1022A and the second electrical connection portion 1022B;

the flexible printed circuit board 1012 is connected to at least two pins of the driving IC1011, and the first electrical connection part 1022A and the second electrical connection part 1022B correspond to the at least two pins one to one.

In this embodiment, the bistable display screen may have a substrate, and the driver IC1011 may be mounted on the substrate. The substrate may be a glass substrate or a TFT substrate depending on the actual application. A glass substrate may be used and a fixed pattern may be provided on the glass substrate for segment code display. At this time, the number of the pins of the FPC1012 connected to the driver IC1011 may be two, i.e., VDD and VSS.

When the dot matrix display technology is used, a TFT substrate may be used, and the number of the pins of the FPC1012 connected to the IC1011 may be 14 at minimum. The 14 pins may be defined as functions of control, sense, reset, data transfer, ground, and power. Wherein GDR is the control switch pipe, RESE is control boost current, RSTN is the reset, CSB, SCL and SDA are SPI data transmission, VDD is drive IC power supply, VSS ground connection, VDDD supplies power for 1.8V operating voltage in the drive IC, VSH, VGH, VSL, VGL and VCOM are display module 101 power supply.

It should be noted that, if the types of the selected data interfaces are different, the pins of the FPC are also different, and there are 2, 6, 14, 24, and 34, etc., so the physical interface may adopt flat cables or pins whose number is convenient to control, and then fix the flat cables or pins and weld each flat cable or pin on the pins of the FPC one by one.

Another embodiment of the identity recognition apparatus provided by the present invention is different from the foregoing embodiments in that: the flexible printed circuit board 1012 is connected to 24 pins of the driver IC1011; the 24 electrical connections correspond one-to-one to the 24 pins.

In the embodiment, the FPC1012 is connected with all 24 pins of the IC1011, and the applicant researches and discovers that the contact point of type-C is also 24 pins, and the FPC and the type-C interface can be soldered and packaged by an SMT packaging technology. Specifically, the male head or the female head of the type-C interface can be selected to be used for matching in the application. The foregoing embodiments have described the combination of the physical interfaces, and are not described herein.

Referring to fig. 3, another embodiment of an identification apparatus provided in the present invention is different from the foregoing embodiments in that: the bistable display screen further includes a connector 1023 for connecting the flexible printed circuit board 1012 with the first and second

electrical connections

1022A and 1022B, respectively.

Note that the FPCs 1012 are connected to the first electrical connection portion 1022A and the second electrical connection portion 1022B through connectors, respectively. The first and second

electrical connection portions

1022A and 1022B are soldered to the corresponding terminals of the terminal clamp plate. After the terminal clamping plates are opened, the FPC1012 is inserted into the terminal clamping plates 110, and the terminal clamping plates are engaged.

Another embodiment of the identity recognition apparatus provided by the present invention is different from the foregoing embodiments in that: the electrical connection part comprises a Serial Peripheral Interface (SPI)²At least one of a C interface, a TTL interface, an RS232, an RS485, a UART and an I80 interface.

In this embodiment, the electric connection portion may be a mobile display port (MyDP) or a Serial Peripheral Interface (SPI), an Inter-Integrated Circuit (I2C), a Transistor Logic (TTL), and an ITL80 in practical use.

Another embodiment of the identity recognition apparatus provided by the present invention is different from the foregoing embodiments in that:

a protection member having a waterproof and dustproof function is provided at the interface of the physical interface 102.

The guard is a wrap that can wrap around the physical interface 102 and/or an insert that can be inserted into the physical interface 102.

In this embodiment, the interface of this physical interface 102 sets up the guard piece that has waterproof dustproof function, this guard piece can protect physical interface 102 and can increase of service life and this guard piece for can wrap up the parcel portion of physical interface 102 and/or can imbed the embedding portion of physical interface 102, and this physical interface safety connection can be guaranteed to outside parcel structure, reduces the loss, and the stability of connection and can guarantee safety are guaranteed to inside embedding portion.

the cross-section of physical connection 1021 is symmetrical about a vertical axis.

The cross-section of physical connection 1021 is symmetrical about a horizontal axis.

The physical connections 1021 may be symmetrical with respect to both a longitudinal axis and a horizontal axis. Such as rectangular, square, circular, oval, etc. Such a configuration may help facilitate the mating of the male and female heads in the shape of the physical interface. The cross-section of the further physical connection 1021 may be shaped as an isosceles triangle, an isosceles trapezoid, or other figure symmetrical about the longitudinal axis, such as a variation of a rectangle, wherein two corners in the direction of the long side are rounded. Such a configuration helps prevent the occurrence of an inverted docking event.

Another embodiment of the identity recognition apparatus provided by the present invention is different from the foregoing embodiments in that the identity recognition apparatus further includes:

an NFC coil 03 and NFC, namely Near Field Communication (NFC), transmit information in an electromagnetic induction coupling mode of a radio frequency part in a frequency spectrum, wherein the NFC coil 03 receives identity identification information sent by burning equipment through electromagnetic induction; the identification information is matched with the display content of the bistable display screen, such as enterprise name, enterprise LOGO, name, photo, number, job title, affiliated department, enterprise image and the like. When the identity recognition device approaches the card punching machine, the identity recognition information in the NFC coil 03 is acquired by the card punching machine, and after comparison with the internal information of the card punching machine, if the comparison result is consistent, the comparison result passes through, otherwise, exception handling is performed, and the repeated description is omitted.

In the prior art, two cards are respectively arranged in one chest card, one card is used for displaying, and the other card is used for identifying a card punch. When the contents need to be updated, the contents of the two cards need to be replaced by different devices respectively. Therefore, manpower and material resources are wasted, and the chest card is too bulky and heavy to wear due to the fact that two cards are arranged in the chest card. In this embodiment, the NFC coil 03 installed in the identification device may be an NFC coil, and the number of turns of the NFC coil may be configured according to practical applications to obtain an appropriate volume and magnetic permeability. The burning device may be another interface matched with the physical interface 102, and an NFC unit matched with an NFC coil is disposed near the interface, and in practical applications, the interface may be disposed at the bottom of an L-type, a V-type, or a U-type, and the NFC unit may be disposed at the long arm of the L, or the NFC unit may be disposed on at least one symmetrical sidewall of the V-type or the U-type. Therefore, the burner provides display signals and power supply for the bistable display screen and also provides identification information for the NFC coil 03. The technical problem is effectively solved.

Another embodiment of the identity recognition apparatus provided by the present invention is different from the foregoing embodiments in that: the shell 01 comprises a transparent cover plate 04 and a bottom shell 05; the transparent cover 04 is assembled with the bottom case 05 in a buckling manner.

In this embodiment, transparent cover 04 can enough protect built-in bistable display screen with the assembly of drain pan 05 lock, can clearly demonstrate the content on the display screen again.

Further, a transparent cover plate 04 is installed in the bottom case 05 in an interference manner.

In this embodiment, interference mounting structure is simple, and maneuverability is strong, and the outward appearance is more pleasing to the eye, stable in structure after apron 04 and drain pan 05 installation.

Another embodiment of the identity recognition apparatus provided by the present invention is different from the foregoing embodiments in that: the transparent cover 04 is bonded to the bottom case 05.

In this embodiment, the transparent cover plate 04 and the bottom case 05 are bonded more firmly and durably, so as to prevent the transparent cover plate 04 from falling off during movement.

Referring to fig. 5, further, a stiffener 06 is disposed on the bottom case 05; the lower edge of the reinforcing rib 06 is fixedly connected with the inner side of the bottom surface of the bottom shell 05.

In this embodiment, transparent cover 04 can be steadily supported to add strengthening rib 06 in drain pan 05 inside, and the fixed connection structure is more stable.

Further, the upper edge of the reinforcing rib 06 is flush with the upper edge of the bottom case 05.

In this embodiment, the structure that flushes makes the drain pan whole more firm, covers transparent cover plate 04 again on the upper surface, and here transparent cover plate can completely cover whole drain pan 05.

Another embodiment of the identity recognition apparatus provided by the present invention is different from the foregoing embodiments in that: the reinforcing rib 06 is formed by a step portion 061 with the upper edge lower than the upper edge of the bottom shell 05; the transparent cover 04 abuts against the step portion 061.

In this embodiment, can be with transparent cover plate 04 laminating in step 061 top embedding drain pan 05, this kind of structure is not only pleasing to the eye but also stable, can also effectively protect transparent cover plate and inside bistable display screen, extension whole life.

Finally, it should be noted that: the identity recognition device disclosed in the embodiment of the present invention is only a preferred embodiment of the present invention, and is only used for illustrating the technical solution of the present invention, not limiting the same; 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

1. An identification device, wherein the identification device is not provided with a battery;

the identification device comprises: the display screen comprises a shell (01) and a bistable display screen arranged inside the shell (01), wherein at least one surface of the shell (01) can see the bistable display screen;

the bi-stable display screen comprises a display component (101), at least one physical interface (102) coupled with the display component (101), a first receiving circuit (103) and a second receiving circuit (104);

the display assembly (101) comprises at least one driver IC (1011);

the physical interface (102) comprises: a physical connecting part (1021) and at least one electric connecting part which are used for physically butting the main body and the burning device;

the electrical connection portion is coupled to and extends outwardly from the body, the electrical connection portion including at least 1 first electrical connection portion (1022A) and at least one second electrical connection portion (1022B);

the first receiving circuit (103) is coupled to the at least one first electrical connection (1022A) at one end and coupled to the driving IC (1011) at the other end, the first receiving circuit (103) is configured to respond to a docking event with the burn device, the response is used for receiving a power supply signal provided by the connected burn device through the first electrical connection (1022A);

the second receiving circuit (104) has one end coupled to the at least one second electrical connection (1022B) and the other end coupled to the driving IC (1011), the second receiving circuit (104) is configured to respond to a docking event with the burn device, the response is used for receiving a display signal sent by the connected burn device through the second electrical connection (1022B);

the driving IC (1011) drives the display component (101) to display according to the display signal and the power supply signal;

the edge of the shell (01) is provided with a bulge (02);

the opening of the physical interface (102) is arranged on the bulge (02);

the bulge (02) is provided with a fixing piece for fixing the identity recognition device.

2. An identification device according to claim 1, comprising:

the fixing piece is a through hole (021) which is arranged on the bulge (02) and through which the hanging rope passes.

3. An identification device according to claim 1, comprising:

the fixing piece is a needle-shaped body (022) arranged on the bulge (02).

4. An identification device according to any of claims 1-3, comprising:

an NFC coil (03);

the NFC coil (03) receives identity identification information sent by burning equipment through electromagnetic induction;

5. An identification device according to claims 1-3, characterized in that:

the shell (01) comprises a transparent cover plate (04) and a bottom shell (05);

and the transparent cover plate (04) is buckled with the bottom shell (05).

6. The identification device of claim 5, wherein:

the transparent cover plate (04) is arranged in the bottom shell (05) in an interference mode.

7. The identification device of claim 5, wherein:

the transparent cover plate (04) is bonded with the bottom shell (05).

8. The identification device of claim 5, wherein:

the bottom shell (05) is provided with a reinforcing rib (06);

the lower edge of the reinforcing rib (06) is fixedly connected with the inner side of the bottom surface of the bottom shell (05).

9. The identification device of claim 8, wherein:

the upper edge of the reinforcing rib (06) is flush with the upper edge of the bottom shell (05).

10. The identification device of claim 8, wherein:

the upper edge of the reinforcing rib (06) is lower than the upper edge of the bottom shell (05) to form a step part (061);

the transparent cover plate (04) is abutted to the step part (061).