A kind of smart card of erasable surface informationTechnical field
The present invention relates to field of intelligent control technology, more particularly to a kind of smart card of erasable surface information.
Background technology
Smart card (Smart Card) is the general designation for the plastic clip for being embedded with electronic chip, typically credit card it is bigSmall, interior comprising an electronic chip, electronic chip is used to realize spy by the reader and the extraneous information exchange that carries out of outsideFixed function.At present, user can complete common key, capital settlement, attendance and certain control behaviour by a sheet smart cardMake, such as with IC card open door, IC card have dinner, do shopping, entertain, meeting, parking, night watching, office, respective services of charging.
In view of smart card is capable of providing a variety of services, it is therefore desirable to smart card be reused, realize different work(Can, in order to mark the functional information of smart card in recycling, need to wipe the corresponding information of printing repeatedly on smart cards.However traditional smart card can not wipe information thereon and print again, so as to make the smart card that can not be recycled.
Utility model content
In view of this, it is erasable for repeating on the surface the present invention provides a kind of smart card of erasable surface informationCorresponding information, to solve the problems, such as that smart card can not reuse.
To solve the above-mentioned problems, the invention discloses a kind of smart cards of erasable surface information, which is characterized in that packetCard material, electronic chip, positive printing layer, back face printing layer and erasable layer are included, wherein：
The card material is rectangular plastic cards, and with positive and negative two surfaces；
The electronic chip is arranged in the card material；
The front printing layer is arranged on a surface of the card material；
The back face printing layer is arranged on another surface of the card material；
The erasable layer is the plastic film for being coated with thermo-sensitive material, be arranged on the back face printing layer relative to instituteState the one side of card material.
Optionally, the electronic chip includes central processing unit, programmable read only memory, random access memory and is solidificated inCard internal operating system in read-only memory.
Optionally, the positive printing layer is to be coated with the plastic film of macromolecule infiltrating material.
Optionally, matcoveredn is set in the positive printing layer.
Optionally, the back face printing layer is the plastic film for being coated with macromolecule infiltrating material.
It can be seen from the above technical proposal that the utility model provides a kind of smart card of erasable surface information, packetInclude card material, electronic chip, positive printing layer, back face printing layer and erasable layer.Card material is rectangular plastic clipPiece, and with positive and negative two surfaces；Electronic chip is arranged in card material；Positive printing layer is arranged on one of card materialOn surface；Back face printing layer is arranged on another surface of card material；Erasable layer is the plastics for being coated with thermo-sensitive materialFilm is arranged on the one side relative to card material of back face printing layer.This smart card is due to the presence of erasable layer, Ke YifangJust user original information erasure and writes new information on it, so as to solve the problems, such as that smart card can not reuse.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show belowThere is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only thisSome embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be withOther attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of structure diagram of the smartcard embodiment of erasable surface information provided by the utility model；
Fig. 2 is the structure diagram of the smart card of the erasable surface information of another kind provided by the utility model.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, completeSite preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based onEmbodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative workEmbodiment shall fall within the protection scope of the present invention.
Fig. 1 is a kind of structure diagram of the smartcard embodiment of erasable surface information provided by the utility model.
With reference to shown in Fig. 1, smart card provided in this embodiment includes card material 10, electronic chip (not shown), frontPrinting layer 20, back face printing layer 30 and erasable layer 40.
Card material is located at the core position of entire smart card, and rectangular plastic cards, shape generally can be selectedThe geomery of size and bank card is essentially identical, in order to which user carries and print relevant information.Electronic chip is arranged on cardIn plate substrate, it can not find out from appearance.
Electronic chip includes central processing unit, programmable read only memory, random access memory and is solidificated in this and read-only depositsCard internal operating system in reservoir.Card inside information can be read, and can be to the read-only memory in card by external readerOr random access memory write-in information.
Card material is because of its flake shape, therefore with positive and negative two surfaces, here positive and negative also only has opposite meaningJustice.One of surface is provided with positive printing layer, another surface is provided with back face printing layer.The two printing layers can be pre-The first upper information without change or deletion of printing, such as company information, advertising information etc..
Positive printing layer and back face printing layer are preferably coated with the plastic film of macromolecule infiltrating material, to utilize itWellability prints above- mentioned information.Plastic film can be arranged on the positive and negative table of card material hot pressing or by way of pastingFace.
Opposite with card material in back face printing layer is additionally provided with erasable layer on one side, for pass through heating or otherRelevant information is printed or wiped on the surface thereof to mode.The erasable layer is preferably coated with the plastic film of thermo-sensitive material, and anti-The way of contact of face printing layer can be hot pressing or paste.Certainly, which may also be arranged in positive printing layer.
It can be seen from the above technical proposal that a kind of smart card of erasable surface information is present embodiments provided, includingCard material, electronic chip, positive printing layer, back face printing layer and erasable layer.Card material is rectangular plastic cards,And with positive and negative two surfaces；Electronic chip is arranged in card material；Positive printing layer is arranged on a table of card materialOn face；Back face printing layer is arranged on another surface of card material；Erasable layer be coated with thermo-sensitive material plastics it is thinFilm is arranged on the one side relative to card material of back face printing layer.This smart card can facilitate due to the presence of erasable layerUser original information erasure and writes new information on it, so as to solve the problems, such as that smart card can not reuse.
In addition, in order to avoid positive printing layer is worn, layer protective layer 50 can also be set on it, as shown in Fig. 2, shouldProtective layer can select transparent plastic film.
Each embodiment in this specification is described by the way of progressive, the highlights of each of the examples are withThe difference of other embodiment, just to refer each other for identical similar part between each embodiment.
Although the preferred embodiment of the embodiment of the present invention has been described, those skilled in the art once know baseThis creative concept can then make these embodiments other change and modification.So appended claims are intended to be construed toIncluding preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to byOne entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operationBetween there are any actual relationship or orders.Moreover, term " comprising ", "comprising" or its any other variant meaningCovering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements are not only wrappedThose elements are included, but also including other elements that are not explicitly listed or are further included as this process, method, articleOr the element that terminal device is intrinsic.In the absence of more restrictions, it is wanted by what sentence "including a ..." limitedElement, it is not excluded that also there are other identical elements in the process including the element, method, article or terminal device.
Technical solution provided by the present invention is described in detail above, specific case used herein is to this hairBright principle and embodiment is expounded, the explanation of above example is only intended to help understand the present invention method and itsCore concept；Meanwhile for those of ordinary skill in the art, thought according to the present invention, in specific embodiment and applicationThere will be changes in range, in conclusion the content of the present specification should not be construed as limiting the invention.