CN115273689A - an identification device - Google Patents

Abstract

The invention discloses an identification device, which can ensure a normal display effect without installing a battery, and has the characteristics of small size and lightness. The identification device comprises: a casing (01) and a bistable display screen installed inside the casing (01), at least one surface of the casing (01) can view the bistable display screen; the bistable display screen includes A display assembly (101), at least one physical interface (102) coupled to the display assembly (101), a first receiving circuit (103) and a second receiving circuit (104); the display assembly (101) includes at least one driver IC (1011); the physical interface (102) includes a physical connection part (1021), at least one first electrical connection part (1022A) and at least one second electrical connection part (1022B); the first receiving circuit (103) passes through the first The electrical connection part (1022A) receives the power supply signal from the writing device, and the second receiving circuit (104) receives the display signal through the second electrical connection part (1022B).

Description

an identification device

technical field

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

Background technique

Badges are also called chest number plates, number plates, engraving plates, work number plates, badges, badges, badges or badges, etc., which can be used as cards to show job status on the chest, or a kind of card that can be hung or buckled on the coat A small number or introduction tag on the left, most of the badges worn on suits, formal clothes, and suits, play a role of introduction. It is generally rectangular, mostly about 2-3cm in size, and one or more of the company name, company LOGO, name, serial number, position, department, and corporate image can be placed on it. Since the size of the chest number plate is relatively small, the above content Keep it as short as possible. It is mostly applicable to companies, central institutions, public utility business halls and service windows in all walks of life, without field limitations.

The material of traditional name badges is generally based on paper, plastic, aluminum alloy plate or stainless steel, etc., and the display content is displayed on the above-mentioned carrier through printing, laser, laser, etc., which is a one-time, unchangeable badge display. Way. The advantages of traditional non-electronic badges are low cost and more styles, but the disadvantage is that the content cannot be changed, and it cannot be recycled after use, which is not environmentally friendly. At present, the display content of the electronic badge can be changed, and it can display text and graphics of different colors according to the color of the LED, and the displayed text and graphics can be moved, which is favored by users. However, current electronic badges generally use LED dot-matrix screens as display devices, which consume a lot of power, and frequent charging may easily lead to safety accidents.

In order to provide a reusable, energy-saving and environment-friendly electronic badge, the patent with publication number CN108877691A adopts an electronic paper display screen. However, even if a battery needs to be installed inside the electronic badge, it not only increases the cost, but also is limited by the size of the power supply circuit, making it difficult to control the size, thickness, weight and other factors of the electronic badge. Therefore, it is urgent for the industry to provide an electronic badge that does not require batteries. In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and the general method has no suitable method to solve the above-mentioned problems. This is obviously related. The problem that the industry is eager to solve. Therefore, how to create a new identity recognition device is one of the current important research and development topics, and has become a goal that the industry needs to improve.

Contents of the invention

The present invention provides an identification device, which effectively solves the above-mentioned problems in the prior art. The identification device can ensure normal display effect without installing a battery, and has the characteristics of small size and thinness due to the elimination of the battery.

The identity recognition device includes: a housing and a bistable display installed inside the housing, at least one surface of the housing can see the bistable display;

The bistable display screen includes 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 driver IC;

The physical interface includes: a physical connection part and at least one electrical connection part for physical docking between the main body and a burning device;

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

One end of the first receiving circuit is coupled to the at least one first electrical connection part, and the other end is coupled to the driver IC, the first receiving circuit is configured to respond to a docking event with the burning device, the Responding to receive a power signal provided by the connected burning device through the first electrical connection part;

One end of the second receiving circuit is coupled to the at least one second electrical connection part, and the other end is coupled to the driver IC, the second receiving circuit is configured to respond to a docking event with the burning device, the Responding to receiving a display signal sent by the connected burning device through the second electrical connection part;

The drive IC drives the display component to display according to the display signal and the power signal;

The housing is provided with a fixing piece for fixing the identification device.

Optionally, the identification device includes:

NFC coil;

The NFC coil receives the identification information sent by the programming device through electromagnetic induction;

The identification information matches the display content of the bistable display screen.

optional,

The NFC coil is arranged in the housing.

optional,

The NFC coil is pasted inside the housing.

optional,

The NFC coil is pasted with the bistable display.

optional,

The NFC coil is pasted on the outside of the housing.

optional,

The physical interface includes at least one of male and/or female ports of USB-A, USB-B, Micro USB, Type-C, Lightning, HDMI, and serial ports; or pin headers and/or pin headers.

optional,

The electrical connection part includes at least one of SPI interface, I2C interface, TTL interface, RS232, RS485, UART and I80 interface.

optional,

The section of the physical connection part is symmetrical with respect to the vertical axis.

optional,

The section of the physical connection part is not only symmetrical with respect to the vertical axis, but also symmetrical with respect to the horizontal axis.

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

Although the identification device does not include a battery, it can be docked with a burning device through a physical interface. The first receiving circuit receives the power signal provided by the connected burning device through the first electrical connection part; the second receiving circuit receives the display signal sent by the connected burning device through the second electrical connection part. The driver IC drives the display components through display signals and power signals. The identification device does not need a battery, so the size can be reduced, the product is lighter, thinner and more comfortable to wear, while avoiding the problem of frequent battery replacement.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is an exploded diagram of an embodiment of an identification device in the present invention;

Fig. 2 is a schematic structural diagram of an embodiment of an identity recognition device in the present invention;

Fig. 3 is the front view of the structure diagram of the bistable display screen in another embodiment of the identification device in the present invention

Fig. 4 is a schematic structural diagram of a physical interface in an embodiment of an identity recognition device in the present invention;

Fig. 5 is a left view of the structural schematic diagram of the bistable display screen in another embodiment of the identification device of the present invention;

Fig. 6 is a left view of the structural schematic diagram of the bistable display screen of another embodiment of the identification device in the present invention;

Fig. 7 is a left view of the structural schematic diagram of the bistable display screen of another embodiment of the identification device in the present invention.

Detailed ways

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. It should be understood, however, that these descriptions are exemplary only, and are not intended to limit the scope of the present disclosure. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring 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 present disclosure. The words "a", "an" and "the" used herein shall also include the meanings of "plurality" and "multiple", unless the context clearly indicates otherwise. In addition, the terms "comprising", "comprising", etc. used herein indicate the existence of stated features, steps, operations and/or components, but do not exclude the existence or addition of one or more other features, steps, operations or components .

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

Some block diagrams and/or flowcharts are shown in the figures. It will be understood that some or combinations of blocks in the block diagrams and/or flowcharts can be implemented by computer program instructions. These computer program instructions can be provided to a processing unit of a general purpose computer, special purpose computer, or other programmable data processing apparatus, so that these instructions, when executed by the processing unit, can be created to implement the functions illustrated in these block diagrams and/or flowcharts /operated device.

Accordingly, the techniques of the present disclosure may be implemented in hardware and/or software (including firmware, microcode, etc.). Additionally, the technology of the present 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 the present disclosure, a computer-readable medium is any medium that can contain, store, convey, propagate or transport instructions. For example, a computer readable medium may include, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, device, or propagation medium. Specific examples of computer-readable media include: magnetic storage, such as magnetic tape or hard disk (HDD); optical storage, such as compact disc (CD-ROM); memory, such as random access memory (RAM) or flash memory; and/or wired / wireless communication link.

In order to solve the above technical problems, an embodiment of an identification device provided by the present invention, please refer to Figure 1 and Figure 2, specifically includes: a housing 01 and a bistable display screen installed inside the housing 01, The bistable display screen can be visible on at least one surface of the casing 01 . The housing 01 is provided with a fixing part 02 for the identification device. The fixing part 02 can be used to hang or wear the device on the user's chest, such as a through hole for a lanyard or a pin to pass through, and the specific structure of the fixing part 02 is not specifically limited here.

It should be noted that the housing 01 may be a flat structure with a cavity inside, and the bistable display screen is installed in the cavity. The housing 01 may surround or semi-enclose the bistable display screen, and at least one surface of the housing 01 can view the bistable display screen. The part of the casing 01 that blocks the display surface of the bistable display screen may be a transparent cover plate 04 or hollowed out. The casing 01 can be molded integrally with a plastic seal, or can be two upper and lower parts with a fastening structure, or at least one side is open, and the opening can allow the bistable display screen to enter and exit. The housing 01 will not be described in detail here.

It should be noted that the bi-stable display screen has a bi-stable characteristic (bi-stable), that is, it consumes power only when the picture changes, and does not consume power when displaying a still picture. The bistable display uses reflected ambient light sources to allow viewers to see the displayed images clearly, and has the characteristics of high contrast, 180° wide viewing angle, light and thin module thickness, reusable and environmental protection.

Referring to Fig. 3 and Fig. 4, this bistable display screen comprises a display assembly 101, a physical interface 102, a first receiving circuit 103 and a second receiving circuit 104, and the display assembly 101 includes at least one driver IC 1011; It should be noted that the driver IC 1011 is not limited to a central processing unit (Central Processing Unit, CPU), or other programmable general-purpose or special-purpose microprocessor (Microprocessor), digital signal processor (DigitalSignal Processor, DSP) , Programmable Controller, Application Specific Integrated Circuits (Application Specific Integrated Circuits, ASIC), Programmable Logic Device (Programmable Logic Device, PLD), other similar processing circuits or a combination of these circuits. Driver IC1011 can be designed for custom communication protocols.

In this embodiment, the physical interface 102 may be disposed on a non-display surface, which is a surface without a display screen. When the physical interface 102 is turned on, it is considered that a transmission link is established with the burning device, and a docking event is triggered.

The physical interface 102 includes: a main body, a physical connection part 1021 and at least one electrical connection part for physically docking with the burning device;

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

In this embodiment, the electrical connection part refers to a contact or lead wire in the physical interface, which can be connected or coupled with other circuits through welding or other physical connection methods. The first electrical connection part 1022A and the second electrical connection part 1022B, They are two types of electrical connection parts that realize different functions in this embodiment. It can be understood that the first electrical connection part 1022A and the second electrical connection part 1022B can be contacts or wires with the same shape and structure. Different quantities can be configured according to actual needs. It can be understood that the first electrical connection part 1022A and the second electrical connection part 1022B may also have different structures.

One end of the first receiving circuit 103 is coupled to the at least one first electrical connection part 1022A, and the other end is coupled to the driver IC 1011. The first receiving circuit 103 is configured to respond to a docking event with the burning device, and the response is used to pass the first An electrical connection part 1022A receives the power signal provided by the connected programming device;

One end of the second receiving circuit 104 is coupled to at least one second electrical connection part 1022B, and the other end is coupled to the driver IC 1011. The second receiving circuit 104 is configured to respond to a docking event with the burning device. The second electrical connection part 1022B is used to receive the display signal sent by the connected programming device.

In this embodiment, although the identification device does not include a battery, it can be connected to the burning device through the physical interface 102 . The first receiving circuit 103 receives the power signal provided by the connected burning device through the first electrical connection part 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 component 101 to display through the display signal and the power supply signal. The displayed content may include enterprise name, enterprise LOGO, name, photo, serial number, job title, department to which it belongs, and enterprise image, etc. The identification device does not need a battery, so the size can be reduced, and the product can be made lighter and thinner as much as possible and more comfortable to wear, while avoiding the problem of frequent battery replacement.

Another embodiment of an identification device provided by the present invention is different from the foregoing embodiments in that: the physical interface 102 includes a Universal Serial Bus (USB, Universal Serial Bus) interface, specifically, USB-A, USB-B, Micro USB, Type-C. Further include, such as Lightning interface for Apple mobile phone, high-definition multimedia interface (HDMI, High Definition Multimedia Interface) USB-A, USB-B, Micro USB, Type-C, Lightning, HDMI and serial port male and/or female Or at least one of pin headers and/or pin headers, resulting combinations include:

1. Both the physical interface of the drive device and the bistable display are equipped with male headers, which can be connected by data lines with female headers at both ends;

2. Both the physical interface of the driving device and the bistable display are equipped with female connectors, which can be connected by data cables with male connectors at both ends;

3. The physical interface of the driving device is a male head, and the physical interface of the bistable display is a female head. Then, the display device can be inserted into the driving device, of course, through a data cable with one end being a male head and the other end being a female head. connect the two;

4. The physical interface of the bistable display is a female connector, and the physical interface of the driving device is a male connector. Then, the driving device can be inserted into the display device. After research, the applicant found that this structure is more suitable for the needs of actual application scenarios;

5. Both the physical interface of the driving device and the bistable display are equipped with pin headers, which can be connected by data lines with pin headers at both ends;

6. Both the physical interface of the drive device and the bistable display are equipped with pin headers, which can be connected by data lines with pin headers at both ends;

7. The physical interface of the drive device is a pin header, and the physical interface of the bistable display is a pin header. Then, the display device can be inserted into the drive device, of course, through a pin header at one end and a pin header at the other end. The data line connects the two;

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. Then, the driving device can be inserted into the display device. The applicant found that this structure is more suitable for the needs of actual application scenarios after research. .

Compared with solutions 1-4, solutions 5-8 can set the size of the physical interface smaller. Compared with Solution 5-8, Solution 1-4 is more convenient for docking, although the size of the physical interface is slightly larger.

Another embodiment of an identification device provided by the present invention is different from the foregoing embodiments in that: in this embodiment, the display components include: an electro-phoretic display panel (Electro-Phoretic Display, EPD), an electro-wetting display panel (Electro-Wetting Display, EWD), cholesteric liquid crystal display panel (Cholesteric Liquid Crystal Display, CLCD) or other bi-stable display panel (Bi-stable display panel), the present invention is not limited thereto.

The core element of the electrophoretic display panel in this embodiment is the electrophoretic pigment particles, and its particle size distribution, surface morphology, δ-potential, optical properties and chemical properties all play an important role in the contrast, response time, clarity and service life of the electronic paper. key role. The electrophoretic display technology uses the principle of electrophoresis in colloid chemistry to stably disperse the charged pigment particles in the non-aqueous dispersion medium containing dyes, so that the dispersed phase and the dispersion medium present a contrast. Under the action of the electric field, the charged pigment ions move onto the electrode surface to display an image.

In this embodiment, a structure of the electrophoretic pigment particle includes a core and a shell, the core is a pigment particle, the shell includes a high molecular polymer and coupling the high molecular polymer and the pigment particle coupling agent. The pigment particles include positively charged pigment particles, negatively charged pigment particles or neutral pigment particles, specifically carbon black, copper chromium black, copper iron manganese black, iron black, titanium dioxide, zinc white, barium sulfate, iron oxide red, iron oxide One or a combination of two or more of yellow, ultramarine blue, chrome yellow, cadmium red, fierce purple, chrome green, iron blue and cobalt blue. The coupling agent is 3-aminopropyltriethoxysilane (KH550), γ-(2,3-epoxypropoxy)propyltrimethoxysilane (KH560), γ-(methacryloyloxy ) Propyltrimethoxysilane (KH570), γ-mercaptopropyltrimethoxysilane (KH580), N-β-(aminoethyl)-γ-aminopropyltrimethoxysilane (KH792), vinylbenzyl One or a combination of two or more of aminoethylaminopropyl trimethoxysilane (VAPMS) and isopropyl trioleate acyloxy titanate. In order to ensure that the average particle size of the above-mentioned electrophoretic pigment particles meets the requirements, the applicant needs to micronize the electrophoretic pigment particles. In practical applications, methods such as grinding, crushing, ultrasonication, or solvent dispersion can be used to achieve this. The relevant equipment may include colloid mills. machine, ball mill, frozen pulverizer, ultrasonic machine, etc.

The main components of the electrophoretic fluid include but are not limited to dispersants, thickeners, surface tension control agents and charge control agents. Wherein the dispersant includes various non-polar and/or low-polar organic solvents and their mixtures, low-level dispersing solvents include but are not limited to various aromatic hydrocarbons such as toluene, benzene, xylene, and halogenated hydrocarbons such as But not limited to chloroform, tetrachloroethylene, etc.; non-polar dispersing solvents include but not limited to linear, branched and cyclic aliphatic hydrocarbons, such as n-hexane, nonane, decane, synthetic isomeric paraffin (Isopar ), synthetic paraffin (Norpar), synthetic cycloalkane (Nappar), synthetic alkanes (Varsol/Naphtha), cyclohexane and halogenated hydrocarbons such as carbon tetrachloride; thickeners can be non-polar polymers, including but Not limited to polymethyl methacrylate, polyethylene, polypropylene, rubbers such as polyisoprene, polyisobutylene, etc., among which polymethyl methacrylate, polyisoprene, and polyisobutylene are the best choices; In addition, the surface tension control agent can be glyceryl monostearate, ethyl distearate hydroxyethyl methyl ammonium methyl sulfate, ethyl tristearate hydroxyethyl methyl ammonium methyl sulfate, Span20 , Span40, Span60, Span80, Tween85, alkyl tertiary amine salt or a combination of two or more; the charge control agent can be organic sulfate, sulfonate, metal soap, organic amide, organic phosphate or phosphate , can also be polymers and block or graft copolymers and their monomers. Polyisobutylene succinimide, metal saponification and lecithin poly or isobutylene and silicone derivatives can be used as charge control agents.

The electrophoretic liquid and the electrophoretic pigment particles dispersed in the electrophoretic liquid are wrapped in the display unit, thereby effectively inhibiting the agglomeration of the electrophoretic pigment particles and improving the stability and service life of the display device. In this embodiment, the display unit may include at least one of microcapsules and microcups. The microcapsules in this embodiment include the above-mentioned electrophoretic liquid, electrophoretic pigment particles dispersed in the electrophoretic liquid, and at least one layer of capsule wall, and the capsule wall is a capsule wall formed by complex coacervation method or in-situ polymerization method . It should be noted that in-situ polymerization can also be called interfacial polymerization, using urea-formaldehyde resin or modified urea-formaldehyde resin as the microcapsule wall material; complex coacervation method uses gelatin and acacia gum as the microcapsule wall material. The microcup in this embodiment includes an electrophoretic liquid, electrophoretic pigment particles dispersed in the electrophoretic liquid, and a microcup. The microcup can be a cylinder with a small size, a cavity, and sealed top and bottom. The microcup is molded by microcup rollers and hardened by ultraviolet light, and then the electrophoretic pigment particles in the electrophoretic liquid are encapsulated in the microcup by a specific method.

The structure of the display device in this embodiment includes, but is not limited to, a display layer containing a solidified medium, an electrophoretic liquid distributed in the solidified medium, and at least one electrophoretic pigment particle dispersed in the electrophoretic liquid; layer connections.

One preparation method of the display layer in this embodiment is to mix a transparent adhesive, a display unit containing an electrophoretic liquid such as microcapsules or microcups, and other solvents in a predetermined ratio, stir the obtained mixed solution evenly, and then coat on the substrate. In the actual process, the mixed solution can be coated on the substrate through a slit extrusion coating process. The slot extrusion coating process can be that after the coating is pressurized by a quantitative pump, it is extruded from the extrusion port of the coating die and coated on the surface of the substrate. The thickness of the coating layer can be determined according to the coating extrusion rate of the coating die and the running speed of the substrate. The applicant can pre-set the gap of the extrusion port and the distance between the extrusion port and the back roller, so as to realize the control of the process. Then it enters curing. It can be understood that the curing process can be realized at room temperature. In order to speed up the curing speed, rapid curing can be achieved by conventional curing methods such as heating, bellows drying or light curing. It is worth noting that coating methods such as blade coating, cast coating, brush coating, roll coating, spray coating, powder coating, and screen printing and inkjet printing processes can also be used to replace slot extrusion. out of the coating process. The adhesive mentioned in this embodiment includes water-based polyurethane emulsion or solvent-based polyurethane emulsion, specifically including but not limited to polyester diol, polyether diol, polyethylene glycol, small molecule chain extender and diisocyanate one or a combination of two or more. The transparent conductive layer can be ITO (Indium Tin Oxides, indium tin metal oxide), also known as semiconductor transparent conductive film, through the transparent organic film material, such as PET (Polyethylene terephthalate, polyethylene terephthalate), PE (polyethylene, polyethylene), PP (polypropylene, polypropylene) and other materials are formed on a transparent indium tin oxide (ITO) conductive film coating and obtained by high temperature annealing. The preparation method of the ITO transparent conductive film includes but not limited to evaporation, sputtering, reactive ion plating, chemical vapor deposition or pyrolysis spraying and other processes. In practical applications, ITO transparent conductive films can be replaced by conductive films such as graphene, silver powder or nano-silver wires. Because graphene has extremely high advantages in conductivity and hardness, it is suitable for making conductive films. The preparation method of the graphene conductive film includes but not limited to chemical vapor deposition method and redox method. Chemical vapor deposition can obtain large sheets of single-layer graphene with good quality, which has performance advantages in light transmittance and surface resistance, but has defects such as complex process route, high cost, low yield rate, and limited film area. The redox method adopts a solution process, which is convenient for large-area continuous preparation through a roll-to-roll process, and has great advantages in cost. The silver powder conductive film uses silver conductor paste as the main material, wherein the silver powder is used as the conductive functional material, and the conductivity and thermal conductivity of the silver powder are mainly utilized. Silver powder can be divided into coarse silver powder and nano-silver wire according to the particle size, in which the average particle size <0.1μm is nano-silver wire; 0.1μm<Dav<10.0μm is coarse silver powder. In addition to the excellent electrical conductivity of silver, nano-silver wires also have excellent light transmission and flex resistance due to the nano-scale size advantage, so they can also be used as the preferred material to replace ITO.

Please refer to Fig. 4, another embodiment of an identification device provided by the present invention is different from the foregoing embodiments in that:

The driver IC 1011 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 part 1022A and the second electrical connection part 1022B;

The flexible printed circuit board 1012 is connected to at least two pins of the driver IC 1011 , and the first electrical connection portion 1022A and the second electrical connection portion 1022B correspond to the at least two pins respectively.

In this embodiment, the bistable display screen may have a substrate, and the driver IC 1011 may be mounted on the substrate. The substrate can be a glass substrate or a TFT substrate according to the actual application. A glass substrate can be used, and a fixed pattern is set on the glass substrate for segment code display. At this time, the FPC1012 has at least two pins connected to the driver IC1011, which are VDD and VSS.

When the dot matrix display technology is adopted, a TFT substrate can be used, and the pins of the FPC1012 connected to the IC1011 can be at least 14. The 14 pins can be defined as functions such as control, detection, reset, data transmission, grounding, and power supply. Among them, GDR is the control switch tube, RESE is the control boost current, RSTN is the reset, CSB, SCL and SDA are all SPI data transmission, VDD is the power supply for the driver IC, VSS is grounded, and VDDD is the 1.8V working voltage power supply in the driver IC. VSH, VGH, VSL, VGL and VCOM all supply power to the display component 101 .

It should be noted that the selected data interface types are different, and the pins of the FPC are also different. There are 2, 6, 14, 24, and 34 pins, etc. Needle, then fix the cable or pin header and solder each cable or pin header to the pins of the FPC one by one.

Another embodiment of an identification device 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 IC 1011 ; the 24 electrical connections correspond to the 24 pins one by one.

All 24pins of the IC1011 connected to the FPC1012 used in this embodiment, the applicant found that the contact point of the type-C is also 24pins, and the FPC and the type-C interface can be welded and packaged through the SMT packaging technology. Specifically, you can choose to use the male head or the female head of the type-C interface for matching in the application. The combination of the physical interfaces has been described in the foregoing embodiments and will not be repeated here.

Please refer to FIG. 3 , another embodiment of an identity recognition device provided by 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 to the first An electrical connection portion 1022A is connected to a second electrical connection portion 1022B.

It should be noted that the FPC 1012 is respectively connected to the first electrical connection portion 1022A and the second electrical connection portion 1022B through connecting pieces. Specifically, the first electrical connection portion 1022A and the second electrical connection portion 1022B are welded to corresponding terminals of the terminal clamp. After the terminal splint is opened, the FPC1012 is inserted into the terminal splint 110, and then the terminal splint is fastened.

Another embodiment of an identification device provided by the present invention is different from the foregoing embodiments in that: the electrical connection part includes at least one of the SPI interface, I ² C interface, TTL interface, RS232, RS485, UART and I80 interface. kind.

In this embodiment, the electrical connection part may adopt a mobile display port (MyDP, MobilityDisplayPort), or a serial peripheral interface (SPI, Serial Peripheral Interface), a two-wire serial bus (I2C, Inter -Integrated Circuit), transistor logic circuit (TTL, Transistor-Transistor Logic) and ITL80.

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

The interface of the physical interface 102 is provided with a waterproof and dustproof protective piece.

The protection member is a wrapping part capable of wrapping the physical interface 102 and/or an embedding part capable of embedding the physical interface 102 .

In this embodiment, the interface of the physical interface 102 is provided with a protective piece with waterproof and dustproof function, the protective piece can protect the physical interface 102 and prolong the service life, and the protective piece is a wrapping part and/or capable of wrapping the physical interface 102 Alternatively, the embedding part of the physical interface 102 can be embedded, the outer wrapping structure can ensure the safe connection of the physical interface and reduce loss, and the inner embedding part can ensure the stability and safety of the connection.

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

The section of the physical connection part 1021 is symmetrical with respect to the vertical axis.

The section of the physical connection part 1021 is symmetrical with respect to the horizontal axis.

Referring to FIGS. 5-7 , the physical connection part 1021 may be symmetrical with respect to the vertical axis and symmetrical with respect to the horizontal axis. For example rectangle, square, circle, ellipse etc. Such a structure can facilitate the docking of the male head and the female head by the shape of the physical interface. Further, the shape of the section of the physical connection part 1021 may be an isosceles triangle, an isosceles trapezoid, or other figures symmetrical to the longitudinal axis, such as a variant of a rectangle, wherein the two corners in the long side direction are rounded. Such a structure helps prevent reverse docking events from occurring.

Another embodiment of an identification device provided by the present invention is different from the foregoing embodiments in that it further includes:

NFC coil 03, NFC, that is, near field communication (NFC, Near Field Communication) NFC transmits information through electromagnetic induction coupling in the radio frequency part of the spectrum. The NFC coil 03 receives the identification information sent by the burning device through electromagnetic induction; the identification information matches the display content of the bistable display screen, for example, enterprise name, enterprise LOGO, name, photo, serial number, position, department and corporate image, etc. When the identification device is close to the card punching machine, the identification information in the NFC coil 03 is obtained by the punching card machine, and then compared with its internal information, if the comparison result is consistent, it passes, otherwise, abnormal processing is performed, which will not be repeated here.

In the prior art, two cards are respectively housed in a badge, one is used for display, and the other is used for identification by punching machines. When the content needs to be updated, the content of the two cards needs to be replaced by different devices. Such a waste of manpower and material resources, and the two cards contained in the badge also appear bloated and heavy, making it inconvenient to wear. In this embodiment, the identification device is equipped with an NFC coil 03, the NFC coil can be an NFC coil, and its number of turns can be configured according to actual applications to obtain appropriate volume and magnetic permeability. The programming device can be another interface that matches the physical interface 102, and an NFC unit that matches the NFC coil is arranged near the interface. The NFC unit is arranged on the arm, or the NFC unit is arranged on at least one symmetrical side wall of the V-shape or the U. Thus, while the programmer provides the display signal and power supply for the bistable display, it also provides identification information for the NFC coil 03. Effectively solve the above-mentioned technical problems.

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

The NFC coil 03 is pasted on the outside of the casing 01 .

In this embodiment, in order to make the NFC coil 03 closer to the programmer and have a more sensitive induction, the NFC coil 03 can be pasted on the outside of the casing 01 . The NFC coil 03 exposed outside the housing can also have a decorative effect, for example, the NFC coil 03 can include a housing with a pattern, and the inside of the housing is an NFC coil. One side of the shell is bonded to the housing 01 by adhesive.

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

The NFC coil 03 is arranged in the housing 01 . The NFC coil 03 is arranged on the outside of the housing 01 to achieve the effect of being closer to the programmer and having a more sensitive induction. However, since the NFC coil 03 is exposed outside the casing, it is easy to scratch, wear, and even fall off. Therefore, in this embodiment, the NFC coil 03 is arranged in the housing 01 . The NFC coil 03 can be pasted inside the housing 01 or pasted with a bistable display. I won't go into details here.

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 to illustrate the technical solution of the present invention, not to limit it; although referring to the aforementioned implementation This example has described the present invention in detail, and those of ordinary skill in the art should understand; it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements , does not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (10)

1. An identity recognition device, characterized in that the identity recognition device is not equipped with a battery; The identity recognition device includes: a housing (01) and a bistable display installed inside the housing (01), at least one surface of the housing (01) can see the bistable display ; The bistable display screen includes 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 component (101) includes at least one driver IC (1011); The physical interface (102) includes: a physical connection part (1021) and at least one electrical connection part for physical docking of the main body and a burning device; The electrical connection portion is coupled to the body and extends outwardly from the body, the electrical connection portion includes at least one first electrical connection portion (1022A) and at least one second electrical connection portion (1022B); One end of the first receiving circuit (103) is coupled to the at least one first electrical connection part (1022A), and the other end is coupled to the driver IC (1011), and the first receiving circuit (103) is configured to respond to For a docking event with the burning device, the response is used to receive a power signal provided by the connected burning device through the first electrical connection part (1022A); One end of the second receiving circuit (104) is coupled to the at least one second electrical connection part (1022B), and the other end is coupled to the driver IC (1011), the second receiving circuit (104) is configured to respond to For a docking event with the burning device, the response is used to receive a display signal sent by the connected burning device through the second electrical connection part (1022B); The drive IC (1011) drives the display component (101) to display according to the display signal and the power supply signal; The casing (01) is provided with a fixing piece (02) for fixing the identification device. 2. An identification device according to claim 1, characterized in that it comprises: NFC coil (03); The NFC coil (03) receives the identification information sent by the programming device through electromagnetic induction; The identification information matches the display content of the bistable display screen. 3. An identification device according to claim 2, characterized in that: The NFC coil (03) is arranged in the casing (01). 4. An identification device according to claim 3, characterized in that: The NFC coil (03) is pasted inside the casing (01). 5. An identification device according to claim 3, characterized in that: The NFC coil (03) is pasted on the bistable display screen. 6. An identification device according to claim 2, characterized in that: The NFC coil (03) is pasted on the outside of the casing (01). 7. The identification device according to any one of claims 1-6, characterized in that: The physical interface (102) includes at least one of USB-A, USB-B, Micro USB, Type-C, Lightning, HDMI and serial port male and/or female headers; or pin headers and/or pin headers seat. 8. The identification device according to any one of claims 1-6, characterized in that: The electrical connection part includes at least one of SPI interface, I ² C interface, TTL interface, RS232, RS485, UART and I80 interface. 9. The identification device according to any one of claims 1-6, characterized in that: The section of the physical connection part (1021) is symmetrical with respect to the vertical axis. 10. The identification device according to claim 9, characterized in that: The section of the physical connection part (1021) is symmetrical with respect to the horizontal axis.

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