CN211237557U - Card with incomplete symmetrical structure - Google Patents
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- CN211237557U CN211237557U CN201922438681.0U CN201922438681U CN211237557U CN 211237557 U CN211237557 U CN 211237557U CN 201922438681 U CN201922438681 U CN 201922438681U CN 211237557 U CN211237557 U CN 211237557U
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Abstract
The utility model discloses a card with an incompletely symmetrical structure, which comprises a middle layer and two composite surface layers arranged at the upper side and the lower side of the middle layer, wherein the two composite surface layers sequentially comprise a base film layer, a holographic layer and a glue layer from outside to inside; the base film layer is a transparent film and is arranged on the outer side of the holographic layer, the adhesive layer is arranged on the inner side of the holographic layer, and the adhesive layer is used for connecting the composite surface layer with the intermediate layer; the inner side surface of the holographic layer of one of the composite surface layers is stamped with a holographic anti-counterfeiting micro-nano structure, a coating is formed on the holographic anti-counterfeiting micro-nano structure, and the adhesive layer is arranged on the inner side surface of the coating. Compared with the prior art, the utility model provides a card of incomplete symmetry of structure, even this kind of card can not turn-up, warp or unevenness after using for a long time yet to this kind of card can realize local outstanding, and full version is anti-fake, and the anti-fake effect of card is more excellent, and the expressive force is good, and the card quality is excellent.
Description
Technical Field
The utility model relates to an optics field of preventing falsification especially relates to a certificate card of incomplete symmetry of structure.
Background
Along with the development of science and technology, various certificate cards are more and more applied to people's daily life, such as employee's card, student's card, discrepancy card, resident certificate, health card, medical insurance social security card, law enforcement card, membership card, officer's card, drawing and writing certificate, official document, china and the like, these certificate cards are more and more intelligent, brought very big facility for our life, meanwhile, because carry a large amount of personal information on the certificate, consequently, also have higher requirement to the security of certificate card, authenticity and irreproducibility. The certificate anti-counterfeiting technical scheme is to apply various anti-counterfeiting technologies to the certificate, so that the security anti-counterfeiting coefficient of the certificate card is improved, and the information security of the certificate card is ensured.
Most of the existing cards are anti-counterfeiting with local holographic effect, for example, the chinese utility model patent CN201520898340 discloses a financial transaction card with anti-counterfeiting image-text identification attached to the surface, which is anti-counterfeiting with local holographic, and is manufactured by a hot stamping method, the process is complex, and the hot stamping requirement is high.
The chinese patent application CN201710017742 discloses an intelligent card and a manufacturing method thereof, wherein a middle layer and a bottom layer are laminated firstly and then connected with a surface layer through a connecting layer, and the card realizes the effect of full-page holography, but only single-side full-page holography.
Moreover, after the two cards are used for a long time, the cards are easy to curl, warp or be uneven, and the color or the anti-counterfeiting effect of the cards is monotonous.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is: the card has the advantages that the defects in the prior art are overcome, the problems in the prior art are solved, the card with an incompletely symmetrical structure is provided, the card cannot be curled, warped or uneven even after being used for a long time, the card can be locally prominent and can be fully anti-counterfeit, the anti-counterfeit effect of the card is better, the expressive force is good, and the card quality is excellent.
The technical scheme of the utility model is that: the certificate card with an incompletely symmetrical structure comprises a middle layer and two composite surface layers arranged on the upper side and the lower side of the middle layer, wherein the two composite surface layers sequentially comprise a base film layer, a holographic layer and a glue layer from outside to inside; the base film layer is a transparent film and is arranged on the outer side of the holographic layer, the adhesive layer is arranged on the inner side of the holographic layer, and the adhesive layer is used for connecting the composite surface layer with the intermediate layer; the inner side surface of the holographic layer of one of the composite surface layers is stamped with a holographic anti-counterfeiting micro-nano structure, a coating is formed on the holographic anti-counterfeiting micro-nano structure, and the adhesive layer is arranged on the inner side surface of the coating.
Preferably, the composite surface layer with the holographic anti-counterfeiting micro-nano structure further comprises an ink layer, and the ink layer is arranged on the outer side of the holographic layer.
Preferably, the holographic anti-counterfeiting micro-nano structure comprises a designated area, and the area of the ink layer corresponding to the designated area of the holographic anti-counterfeiting micro-nano structure is hollowed.
Preferably, the designated area of the holographic anti-counterfeiting micro-nano structure has visual effects of a lens, a three-dimensional color pattern, two-color directional light discoloration or a three-dimensional dynamic image and text.
Preferably, the plating layer covering the holographic anti-counterfeiting micro-nano structure is a chromium plating layer, an aluminum plating layer and a copper plating layer; or the coating is a titanium dioxide coating, a niobium pentoxide coating, a zirconium dioxide coating, a magnesium fluoride coating or a zinc sulfide coating.
Preferably, the composite surface layer with the plating layer further comprises an ink layer, and the ink layer is arranged between the plating layer and the adhesive layer; or an ink layer is arranged on the surface of one side, close to the composite surface layer with the plating layer, of the middle layer; the coating is a transparent coating.
Preferably, the ink layer comprises a designated area, and the area of the holographic anti-counterfeiting micro-nano structure corresponding to the designated area of the ink layer is hollowed.
Preferably, the transparent coating is a titanium dioxide coating, a niobium pentoxide coating, a zirconium dioxide coating, a magnesium fluoride coating or a zinc sulfide coating.
Preferably, the holographic layer is a transparent thermosetting coating or a UV (ultraviolet) light curing coating, and the holographic anti-counterfeiting micro-nano structure of the holographic layer on the composite surface layer on the upper side of the middle layer is formed by imprinting and curing the transparent thermosetting coating or the UV light curing coating.
Preferably, the holographic anti-counterfeiting micro-nano structure comprises a micro-nano structure with the visual effect of through-plate laser, and/or the holographic anti-counterfeiting micro-nano structure comprises a local micro-nano structure with the visual effect of a lens, a three-dimensional color pattern, two-color directional photochromic and three-dimensional dynamic image-text.
The utility model has the advantages that:
1. the utility model provides a card has the structure of incomplete symmetry, even can not turn up, warp or unevenness after long-time the use.
2. The utility model provides a certificate card, the printing ink layer on its one compound top layer mutually supports with holographic layer, has various diversified anti-fake effects.
When the ink layer is arranged on the outer side of the holographic layer, the surface of the composite film has a bright-color ink effect and a full-plate weak laser effect; furthermore, the printing ink can be hollowed out, so that the anti-counterfeiting mark on the specific local part of the holographic layer can be clear and bright.
When the ink layer is arranged on the inner side of the holographic layer, the surface of the composite film has a clear and transparent laser effect and a full-page full-body matte ink effect; furthermore, the holographic layer can be arranged in a hollow manner (the hollow-out arrangement of the holographic layer is not substantially pressed with a micro-nano structure), so that the specific image and text of the ink layer arranged on the inner side can show an ink effect with vivid colors.
Drawings
Fig. 1 is a schematic structural diagram of the composite membrane provided by the present invention.
Fig. 2 is another schematic structural diagram of the composite membrane provided by the present invention.
Fig. 3 is a schematic structural diagram of a composite membrane provided by the present invention.
Fig. 4 is a schematic structural diagram of a composite membrane provided by the present invention.
Fig. 5 is a schematic structural diagram of a composite membrane provided by the present invention.
Fig. 6 is a schematic structural diagram of a composite membrane provided by the present invention.
Fig. 7 is a schematic structural diagram of the certificate card with symmetrical structure provided by the present invention.
Fig. 8 is another schematic structural diagram of the certificate card with symmetrical structure provided by the present invention.
Fig. 9 is a schematic structural diagram of the identification card with an incompletely symmetrical structure provided by the present invention.
Fig. 10 is another schematic structural diagram of the identification card with an incompletely symmetrical structure provided by the present invention.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings 1-10 and the embodiments, wherein: 1. composite membranes (composite skins); 11. a base film layer; 12. a holographic layer; 121. a holographic anti-counterfeiting micro-nano structure; 1211. designating an area; 122. the holographic layer is partially hollowed out; 13. plating; 14. a glue layer; 15. an ink layer; 151. designating an area; 152. the ink layer is partially hollowed out; 2. an intermediate layer.
Composite film
As shown in fig. 1 to 6, the utility model discloses a composite film 1 for the surface layer of an identification card. The composite film 1 comprises a base film layer 11, a holographic layer 12, a coating layer 13 and an adhesive layer 14 which are fixedly arranged, wherein the base film layer 11 is a transparent film with a supporting function and is arranged on one side of the holographic layer 12, and a holographic anti-counterfeiting micro-nano structure 121 is stamped on the surface of the holographic layer 12 far away from the base film layer; the plating layer 13 is arranged on one side of the holographic layer 12, on which the holographic anti-counterfeiting micro-nano structure 121 is imprinted, and covers the holographic anti-counterfeiting micro-nano structure 121; the glue layer is arranged on one side, far away from the holographic layer, of the plating layer, and the glue layer is used for connecting the composite film with other materials. The composite film further comprises an ink layer 15, wherein the ink layer can be arranged at a plurality of positions: the ink layer is arranged on the surface of the base film layer 11 far away from or close to the holographic layer 12, or the ink layer 11 is arranged between the plating layer 13 and the adhesive layer 14.
The ink layer 15 is a graphic layer printed with ink, and has a vivid ink effect. The holographic layer 12 is embossed with a holographic anti-counterfeiting micro-nano structure, and the holographic anti-counterfeiting micro-nano structure has a clear and bright laser effect.
The composite film of the embodiment, the ink layer 15 and the holographic layer 12 are mutually matched, and has various anti-counterfeiting effects. When the ink layer 15 is arranged on the outer side of the holographic layer 12, the surface of the composite film has a bright-color ink effect and a full-plate weak laser effect; when the ink layer 15 is arranged on the inner side of the holographic layer 12, the coating 13 is a transparent coating, and the surface of the composite film has a clear and transparent laser effect and a full-page full-body matte ink effect.
When the ink layer 15 is disposed on the outer side of the hologram layer 12 (for example, the ink layer 15 is disposed on one surface of the base film layer 11), the plating layer may be a transparent plating layer or a colored plating layer. When the ink layer 15 is arranged on the inner side of the holographic layer 12 (e.g. the ink layer 11 is arranged between the coating layer 13 and the glue layer 14), the coating must be a transparent coating. The transparent coating is a titanium dioxide coating, a niobium pentoxide coating, a zirconium dioxide coating, a magnesium fluoride coating or a zinc sulfide coating, or is made of other ceramic materials with the refractive index of more than 1.8. The colored plating layer is a metallic plating layer such as a chromium plating layer, an aluminum plating layer or a copper plating layer.
The base film layer 11 of the composite film of the present embodiment is preferably a transparent PET film or PC film. The adhesive layer 14 is preferably a hot melt adhesive layer that is used to join the composite film to other materials.
The holographic layer 12 of the composite film and the holographic anti-counterfeiting micro-nano structure 121 thereof of the embodiment include, but are not limited to, the following two manufacturing methods: firstly, coating a thermosetting coating on a base film layer, and impressing a holographic anti-counterfeiting micro-nano structure on the thermosetting coating; and secondly, coating a UV photocuring coating on the base film layer, and impressing the holographic anti-counterfeiting micro-nano structure on the UV photocuring coating. And preferably, a second manufacturing method is adopted, the holographic anti-counterfeiting micro-nano structure is imprinted when the UV photocureable coating is in a liquid state, so that the groove shape of the micro-nano structure can be very deep and cannot rebound, the UV photocureable coating is high in strength and high temperature resistant after being cured, and the holographic anti-counterfeiting micro-nano structure on the composite film cannot be damaged due to high temperature when the composite film is subsequently combined with other materials.
The holographic anti-counterfeiting micro-nano structure 121 imprinted on the holographic layer 12 comprises a micro-nano structure forming a through plate or local laser effect, and can also comprise a local micro-nano structure having various unique visual effects (anti-counterfeiting effect) such as a lens, a three-dimensional color pattern, two-color directional light discoloration, a three-dimensional dynamic image and text (image and text amplification, reduction, light and shade change and the like), invisible characters and the like, and can also comprise a micro-nano structure having one or more combined effects according to different application environments. For example, the holographic anti-counterfeiting micro-nano structure comprises a micro-nano structure with a lens effect and a micro-nano structure with a laser effect, which are locally arranged. The specific structures of the holographic anti-counterfeiting micro-nano structures with unique visual effects (anti-counterfeiting effects) are the prior art, and refer to patents such as a three-dimensional laser printing method and system of patent CN201310166341.1, a two-channel grating structure of patent CN201210002138.6, an identification structure and a card identification method, a safety film with dynamic three-dimensional effects of patent CN201010180251.4, a dynamic amplification optical film of patent CN201510094589.0 plane Fresnel lens array and the like.
It should be noted that, when the ink layer 15 is disposed on the outer side of the holographic layer 12, the unique visual effect of the holographic layer 12 is invisible or difficult to see, and therefore, in a preferred embodiment, referring to fig. 4 and 5, the ink layer 15 is partially hollowed, the specified region of the holographic anti-counterfeiting micro-nano structure of the holographic layer 12 has the unique visual effect or a combined effect of multiple unique effects, and the ink layer 15 is hollowed in a region corresponding to the specified region 1211 of the holographic anti-counterfeiting micro-nano structure 121 of the holographic layer 12. The local hollow-out arrangement of the ink layer enables the anti-counterfeiting mark in the designated area of the holographic layer to be clear and transparent and more prominent.
When the ink layer 15 is arranged on the inner side of the holographic layer 12, the ink layer has a full-page full-body matte ink effect due to the existence of the holographic anti-counterfeiting micro-nano structure 121 of the holographic layer 12. Therefore, when a certain image and text or logo on a part of the ink layer needs to be emphasized, in another preferred embodiment, referring to fig. 6, the holographic layer 12 is partially hollowed, the ink layer 15 includes a designated area 151, and the designated area is printed with a specific image, text or logo. The holographic anti-counterfeiting micro-nano structure 121 of the holographic layer 12 is hollowed in a region corresponding to the designated region 151 of the ink layer 15. The local hollow-out arrangement of the holographic layer here means that no micro-nano structure is imprinted at the local hollow-out position 122 of the holographic layer. The arrangement enables the specific pictures and texts of the ink layer arranged on the inner side to present the printing ink effect with vivid colors.
The embodiment also provides a manufacturing method of the composite film, which comprises the following steps:
providing a base film layer 11, coating a UV photocuring coating on one surface of the base film layer 11, impressing a holographic anti-counterfeiting micro-nano structure by using a practical mould, and curing to manufacture a holographic layer 12;
vacuum coating is carried out on the holographic anti-counterfeiting micro-nano structure of the holographic layer 12 to form a coating 13;
coating the plating layer 13 to prepare an adhesive layer 14;
and printing an ink layer on the other surface of the base film layer.
Of course, the ink layer may be printed on one surface of the base film layer in advance, and after the ink layer is dried, the hologram layer may be formed on one surface of the base film layer.
The embodiment also provides an identification card which comprises the composite film provided by the embodiment.
Card with symmetrical structure
The structure of the existing identification card is basically not designed symmetrically, and due to the fact that different materials have different shrinkage rates, the asymmetric design can enable the identification card to be prone to curling or unevenness after the identification card is used for a period of time. As shown in fig. 7 and 8, the utility model also provides a certificate card of structural symmetry, it includes intermediate level 2 and sets up two compound top layers 1 that the structure is the same but the symmetry sets up in intermediate level 2 upper and lower both sides, compound top layer includes the basic rete 11, holographic layer 12, cladding material 13 and the glue film 14 that the position is fixed to set up, basic rete 11 is transparent film, and it sets up in one side of holographic layer, holographic layer has holographic anti-fake micro-nano structure in the impression of the surface of keeping away from the basic rete; the coating is arranged on one side of the holographic layer, on which the holographic anti-counterfeiting micro-nano structure is imprinted, and covers the holographic anti-counterfeiting micro-nano structure; the glue layer is arranged on one side, away from the holographic layer, of the plating layer, and the glue layer is used for connecting the composite surface layer with the middle layer.
Referring to fig. 7, in the identification card of the present embodiment, the two composite surface layers have the same structure, and include a base film layer 11, a holographic layer 12, a plating layer 13 and an adhesive layer 14, which are fixedly disposed in positions, and the two composite surface layers are symmetrically disposed on two sides of the middle layer. Due to the fact that the same materials have the same shrinkage rate, the card can be even and flat without warping even if the card is used for a long time due to the symmetrical structure.
The contents of the base film layer 11, the holographic layer 12, the plating layer 13 and the glue layer 14 may be referred to the contents of the respective layers of the composite film of the previous embodiment. Because the two composite surface layers of the identification card provided by the embodiment are provided with the holographic layers printed with the holographic anti-counterfeiting micro-nano structures, the identification card provided by the embodiment has a double-sided holographic anti-counterfeiting effect.
In order to make the anti-counterfeiting effect more diversified, as shown in fig. 8, in a preferred embodiment, the identification card further includes an ink layer, and since the thickness of the ink layer is thinner, the symmetry of the material of the composite surface layer of the identification card of this embodiment is not affected, so that the ink layer can be flexibly disposed at some positions of the identification card of this embodiment. For example, the ink layer may be disposed on both sides of the middle layer as shown in fig. 8, or may be disposed on one or both of the composite surface layers, and as for the specific location of the composite surface layer, reference may be made to the location of the ink layer in the composite film of the previous embodiment.
It should be noted that the composite film provided in the previous embodiment can also be used as a composite surface layer of the identification card provided in this embodiment, and because the composite film has more diversified anti-counterfeiting effects (for example, the ink layer is hollowed out and the holographic layer is hollowed out), the identification card of this embodiment also has more diversified anti-counterfeiting effects. In addition, when the composite film provided in the previous embodiment is disposed on both sides of the middle layer of the identification card as the composite surface layer, the positions of the base film layer 11, the holographic layer 12, the plating layer 13 and the glue layer 14 are symmetrically disposed, but the positions of the ink layers may be asymmetrical, for the reasons stated above, and will not be described in detail here.
Card with incomplete symmetrical structure
The composite surface layer of the card provided by the previous embodiment comprises a plurality of layers, and the thickness of the plating layer is negligible compared with the thickness of other layers (the base film layer, the holographic layer and the adhesive layer) in practice, and the symmetry of the whole card on the material is not influenced.
As shown in fig. 9 to 10, the utility model discloses still provide an identification card of incomplete symmetry of structure, including intermediate level and two compound top layers of setting both sides about the intermediate level, compound top layer includes basic rete, holographic layer and glue film, basic rete, holographic layer and the glue film symmetry setting in the both sides of intermediate level that are located the compound top layer of two sides about the intermediate level. The base film layer is a transparent film and is arranged on one side of the holographic layer, the adhesive layer is arranged on one side, away from the base film layer, of the holographic layer, and the adhesive layer is used for connecting the composite surface layer with the intermediate layer. The holographic layer of the composite surface layer on the upper side of the intermediate layer is printed with a holographic anti-counterfeiting micro-nano structure on the surface of one side close to the intermediate layer, a coating is formed on the holographic anti-counterfeiting micro-nano structure, and the coating is arranged between the holographic layer of the composite surface layer on the upper side of the intermediate layer and the adhesive layer.
The certificate card with the incompletely symmetrical structure is characterized in that the thicknesses of the base film layers of the two composite surface layers are the same, the thicknesses of the holographic layers of the two composite surface layers are the same, and the thicknesses of the glue layers of the two composite surface layers are the same, so that even if the holographic layer of one composite surface layer is printed with the holographic anti-counterfeiting micro-nano structure and coated with the coating, the coating is thinner, and the symmetry of the whole certificate card on the material is not influenced. This embodiment thus provides an identification card that is uniformly flat and warp free even after prolonged use due to the same material having the same shrinkage, which is not completely symmetrical.
Like the identification card provided by the previous embodiment, the identification card provided by the embodiment can also increase the diversity of the anti-counterfeiting effect of the identification card by adding the ink layer. As shown in fig. 10, in a preferred embodiment, the identification card further includes an ink layer, and since the thickness of the ink layer is relatively thin, the symmetry of the material of the composite surface layer of the identification card of this embodiment is not affected, so that the ink layer can be flexibly disposed at some positions of the identification card of this embodiment. For example, the ink layer may be disposed on both sides of the middle layer as shown in fig. 8, or may be disposed on one or both of the composite surface layers, and as for the specific location of the composite surface layer including the plating layer, reference may be made to the location of the ink layer in the composite film of the previous embodiment.
It should be noted that the composite film provided in the first embodiment can also be used as a composite surface layer with a plating layer of the identification card provided in this embodiment, and the identification card provided in this embodiment also has more diversified anti-counterfeit effects (for example, the ink layer is hollowed and the holographic layer is hollowed).
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. The identification card with an incompletely symmetrical structure is characterized in that: the holographic film comprises a middle layer and two composite surface layers arranged on the upper side and the lower side of the middle layer, wherein the two composite surface layers sequentially comprise a base film layer, a holographic layer and a glue layer from outside to inside;
the base film layer is a transparent film and is arranged on the outer side of the holographic layer, the adhesive layer is arranged on the inner side of the holographic layer, and the adhesive layer is used for connecting the composite surface layer with the intermediate layer;
the inner side surface of the holographic layer of one of the composite surface layers is stamped with a holographic anti-counterfeiting micro-nano structure, a coating is formed on the holographic anti-counterfeiting micro-nano structure, and the adhesive layer is arranged on the inner side surface of the coating.
2. An identification card having a non-fully symmetrical structure as claimed in claim 1, wherein: the composite surface layer with the holographic anti-counterfeiting micro-nano structure further comprises an ink layer, and the ink layer is arranged on the outer side of the holographic layer.
3. An identification card having a non-fully symmetrical structure as claimed in claim 2, wherein: the holographic anti-counterfeiting micro-nano structure comprises a designated area, and the area of the ink layer corresponding to the designated area of the holographic anti-counterfeiting micro-nano structure is hollowed.
4. An identification card having a structure that is not completely symmetrical as claimed in claim 3, wherein: the designated area of the holographic anti-counterfeiting micro-nano structure has the visual effects of a lens, a three-dimensional color pattern, two-color directional light color changing or three-dimensional dynamic graphics and texts.
5. An identification card having a non-fully symmetrical structure as claimed in claim 2, wherein: the coating covering the holographic anti-counterfeiting micro-nano structure is a chromium coating, an aluminum coating and a copper coating; or the coating is a titanium dioxide coating, a niobium pentoxide coating, a zirconium dioxide coating, a magnesium fluoride coating or a zinc sulfide coating.
6. An identification card having a non-fully symmetrical structure as claimed in claim 1, wherein: the composite surface layer with the coating further comprises an ink layer, and the ink layer is arranged between the coating and the adhesive layer; or an ink layer is arranged on the surface of one side, close to the composite surface layer with the plating layer, of the middle layer; the coating is a transparent coating.
7. An identification card having a structure that is not completely symmetrical as claimed in claim 6, wherein: the ink layer comprises a designated area, and the area of the holographic anti-counterfeiting micro-nano structure, which corresponds to the designated area of the ink layer, is hollowed.
8. An identification card having a structure that is not completely symmetrical as claimed in claim 6, wherein: the transparent coating is a titanium dioxide coating, a niobium pentoxide coating, a zirconium dioxide coating, a magnesium fluoride coating or a zinc sulfide coating.
9. An identification card having a non-fully symmetrical structure as claimed in claim 1, wherein: the holographic layer is a transparent thermosetting coating or a UV photocureable coating, and the holographic anti-counterfeiting micro-nano structure of the holographic layer on the composite surface layer on the upper side of the middle layer is formed by imprinting the transparent thermosetting coating or the UV photocureable coating and then curing the transparent thermosetting coating or the UV photocureable coating.
10. An identification card having a non-fully symmetrical structure as claimed in claim 1, wherein: the holographic anti-counterfeiting micro-nano structure comprises a micro-nano structure with the visual effect of through plate laser, and/or the holographic anti-counterfeiting micro-nano structure comprises a local micro-nano structure with the visual effect of a lens, a three-dimensional color pattern, two-color directional light discoloration and a three-dimensional dynamic image and text.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922438681.0U CN211237557U (en) | 2019-12-30 | 2019-12-30 | Card with incomplete symmetrical structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922438681.0U CN211237557U (en) | 2019-12-30 | 2019-12-30 | Card with incomplete symmetrical structure |
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| Publication Number | Publication Date |
|---|---|
| CN211237557U true CN211237557U (en) | 2020-08-11 |
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| CN201922438681.0U Active CN211237557U (en) | 2019-12-30 | 2019-12-30 | Card with incomplete symmetrical structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114446179A (en) * | 2022-02-22 | 2022-05-06 | 合肥维信诺科技有限公司 | Flexible display module, preparation method of flexible display module and flexible display device |
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2019
- 2019-12-30 CN CN201922438681.0U patent/CN211237557U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114446179A (en) * | 2022-02-22 | 2022-05-06 | 合肥维信诺科技有限公司 | Flexible display module, preparation method of flexible display module and flexible display device |
| CN114446179B (en) * | 2022-02-22 | 2023-10-24 | 合肥维信诺科技有限公司 | Flexible display module, preparation method of flexible display module and flexible display device |
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