CN116824978A - Security element - Google Patents

Abstract

The invention provides an anti-counterfeiting element, which relates to the technical field of anti-counterfeiting, and comprises: a substrate layer; the anti-counterfeiting information layer is arranged on one side of the substrate layer, and can emit light after receiving radio wave signals so as to display anti-counterfeiting information; the concave-convex structure is arranged on the anti-counterfeiting information layer, and the concave-convex structure can enable light emitted by the anti-counterfeiting information layer to generate diffraction phenomenon when the anti-counterfeiting information layer emits light, so that under the condition that the anti-counterfeiting information is observed from different observation angles, the anti-counterfeiting information can show luminous effects of different colors, or show luminous effects of alternating multiple colors, or show dynamic pattern conversion effects. According to the anti-counterfeiting element provided by the invention, the concave-convex structure is arranged on the anti-counterfeiting information layer, so that the concave-convex structure can enable light emitted by the anti-counterfeiting information layer to generate diffraction phenomenon when the anti-counterfeiting information layer emits light, and a user can obtain different color light-emitting effects when observing from different observation angles.

Description

Security element

Technical Field

The invention relates to the technical field of anti-counterfeiting, in particular to an anti-counterfeiting element.

Background

In order to realize various luminous effects, the conventional anti-counterfeiting element is generally added with an angle-following color-changing layer in the process of preparing the anti-counterfeiting element, so that the preparation cost is increased.

Therefore, in order to reduce the preparation cost, the invention provides the anti-counterfeiting element capable of realizing the effect of changing color along with corners under the condition of not adding the layer of changing color along with corners, which is a technical problem to be solved urgently.

Disclosure of Invention

The present invention aims to solve or improve at least one of the above technical problems.

The technical scheme of the invention is to provide an anti-counterfeiting element.

The present invention provides a security element comprising: a substrate layer; the anti-counterfeiting information layer is arranged on one side of the substrate layer, and can emit light after receiving radio wave signals so as to display anti-counterfeiting information; the surface of the anti-counterfeiting information layer, which is away from one side of the substrate layer, is provided with a concave-convex structure, and the concave-convex structure can lead light emitted by the anti-counterfeiting information layer to generate diffraction phenomenon when the anti-counterfeiting information layer emits light.

The diffraction phenomenon comprises that under the condition that the anti-counterfeiting information is observed from different observation angles, the anti-counterfeiting information can show luminous effects of different colors, or show luminous effects of alternating multiple colors, or show dynamic pattern conversion effects.

The anti-counterfeiting element comprises a substrate layer, an anti-counterfeiting information layer and a concave-convex structure, wherein the substrate layer is attached to the surface of an anti-counterfeiting article, the anti-counterfeiting information layer is arranged on one side of the substrate layer, for example, on one side far away from the anti-counterfeiting article, the anti-counterfeiting information layer can emit light and display anti-counterfeiting information after receiving radio wave signals, the concave-convex structure is arranged on the anti-counterfeiting information layer, for example, on one side far away from the substrate layer, and the concave-convex structure can enable light emitted by the anti-counterfeiting information layer to generate diffraction phenomenon when the anti-counterfeiting information layer emits light, so that under the condition that the anti-counterfeiting information is observed from different observation angles, the anti-counterfeiting information can display luminous effects of different colors, or display luminous effects of alternate conversion of multiple colors, or display conversion effects of dynamic patterns. According to the anti-counterfeiting element provided by the invention, the concave-convex structure is arranged on the anti-counterfeiting information layer, so that when the anti-counterfeiting information layer emits light, the concave-convex structure can enable light emitted by the anti-counterfeiting information layer to generate diffraction phenomenon, so that users can obtain different color luminous effects when observing from different observation angles, the concave-convex structure replaces the traditional angle-following color-changing layer, the preparation cost is reduced, and meanwhile, the difficulty of the anti-counterfeiting element in plagiarism is increased.

In the above technical solution, the concave-convex structure shape includes one of a sine waveform, a square waveform, and a saw tooth shape.

In the technical scheme, the anti-counterfeiting information layer comprises a light-emitting layer which is arranged on one side of the substrate layer and can emit light after being electrified so as to display anti-counterfeiting information; the receiving antenna layer is connected with the light-emitting layer and is used for receiving radio wave signals to generate induced current so as to enable the light-emitting layer to be electrified and emit light; the surface of the side, away from the substrate layer, of the light-emitting layer and the receiving antenna layer is provided with concave-convex structures.

In this technical scheme, anti-fake information layer includes luminescent layer and receiving antenna layer, and the luminescent layer sets up in one side of substrate layer, for example sets up in one side of keeping away from anti-fake article, and luminescent layer circular telegram back can give out light and show anti-fake information, and receiving antenna layer is connected with the luminescent layer, and receiving antenna layer is used for receiving radio wave signal to produce induced current, so that luminescent layer circular telegram is luminous. Through setting up luminescent layer and receiving antenna layer, utilize the principle of magnetism electricity generation like this, can be at the inside induced current that generates of receiving antenna layer, and then make the luminescent layer circular telegram and give out light, improved anti-fake element's disguise.

In the above-described embodiments, the concave-convex structure can diffract light reflected by the receiving antenna layer under natural light irradiation.

In the technical scheme, under the irradiation of natural light, the concave-convex structure can also enable light reflected by the receiving antenna layer to generate diffraction phenomenon, so that the receiving antenna layer is not easy to find under normal conditions, and the concealment of the anti-counterfeiting element is further improved.

In the technical scheme, the receiving antenna layer comprises a receiving antenna, and the line width of the receiving antenna is more than or equal to 400 mu m and less than or equal to 600 mu m; the line spacing of the receiving antennas is 50 μm or more and 100 μm or less.

In the technical scheme, the concave-convex structure can lead the light reflected by the receiving antenna layer to generate diffraction phenomenon, so that the line width and the line interval of the receiving antenna are controlled, the best hiding effect can be realized, and the receiving antenna is difficult to find under the condition of no fine looking.

Further, the receiving antenna may be a wireless charging receiving antenna or an NFC (Near-Field-Communication) receiving antenna.

In the above technical scheme, the receiving antenna layer includes wireless receiving antenna that charges, and the anti-fake element still includes: the wireless charging chip is connected with the wireless charging receiving antenna and is used for transmitting a low-frequency alternating current pre-signal to the wireless charging receiving antenna at the wireless charging signal transmitting end, and transmitting a matching success signal to the wireless charging signal transmitting end under the condition that the wireless charging receiving antenna receives the low-frequency alternating current pre-signal, so that the wireless charging signal transmitting end can continuously transmit radio waves to the wireless charging receiving antenna after receiving the matching success signal, and the luminous layer can continuously emit light to display anti-counterfeiting information.

In this technical scheme, when receiving antenna layer is constructed as wireless receiving antenna that charges, anti-fake element still includes wireless chip that charges, wireless chip and the wireless receiving antenna that charges of charging are connected, when wireless signal transmitting terminal to wireless receiving antenna that charges transmits low frequency alternating current pre-signal that charges, wireless chip that charges can be to wireless signal transmitting terminal transmission match success signal that charges, after the wireless signal transmitting terminal that charges receives the matching success signal that wireless chip feeds back, can last to wireless receiving antenna transmission radio wave (usually at 100KHz to 205 KHz) that charges to make the luminescent layer continuously show anti-fake information. According to the application, the wireless charging chip is arranged, so that when a user performs wireless charging on the mobile phone end, the wireless charging chip can perform signal feedback with the mobile phone end, so that the mobile phone end can timely sense the wireless charging receiving antenna, and can continuously emit radio waves to the wireless charging receiving antenna, so that the luminous layer continuously displays anti-counterfeiting information, and the problem that the mobile phone end cannot detect the wireless charging receiving antenna and automatically close the function of radio wave emission, so that the problem that the radio waves cannot be continuously emitted to the wireless charging receiving antenna is solved.

In the above technical solution, the light emitting layer includes: the first electrode layer and the second electrode layer are arranged on one side of the substrate layer; the flexible display element can emit light in an electrified state so as to display anti-counterfeiting information; two ends of the flexible display element are respectively connected with the first electrode layer and the second electrode layer; the two ends of the receiving antenna layer are respectively connected with the first electrode layer and the second electrode layer.

In the technical scheme, the luminous layer comprises a first electrode layer, a second electrode layer and a flexible display element, the flexible display element can emit light under the electrified state so as to display anti-counterfeiting information, two ends of the flexible display element are respectively connected with the first electrode layer and the second electrode layer, two ends of the receiving antenna layer are respectively connected with the first electrode layer and the second electrode layer, and thus the luminous layer is equivalent to the first electrode layer, the second electrode layer, the flexible display element and the receiving antenna layer to form a closed loop.

In the above technical scheme, the receiving antenna layer and the first electrode layer are of an integrated structure, and the receiving antenna layer and the second electrode layer are of an integrated structure.

In the technical scheme, the receiving antenna layer and the first electrode layer are of an integrated structure, and the receiving antenna layer and the second electrode layer are of an integrated structure, so that the conductive efficiency in a closed loop can be improved, the preparation process is simplified, and the preparation efficiency of a product is improved. Of course, the receiving antenna layer and the first electrode layer may be in a split structure, and the receiving antenna layer and the second electrode layer may be in a split structure.

In the above-described aspect, the flexible display element includes: a flexible organic electroluminescent element, a flexible inorganic electroluminescent element, and a flexible electrochromic element.

In the technical scheme, the flexible display element comprises one of a flexible organic electroluminescent element, a flexible inorganic electroluminescent element and a flexible electrochromic element, so that the anti-counterfeiting element can generate diversified anti-counterfeiting information such as various colors, various images, dynamic patterns and the like when the anti-counterfeiting information is displayed.

In the above technical solution, the receiving antenna layer includes an NFC (Near-Field-Communication) receiving antenna, and the anti-counterfeiting element further includes: the NFC rectification chip is connected with the NFC receiving antenna and used for converting high-frequency alternating current signals received by the NFC receiving antenna into direct current signals so that the luminous layer is electrified and emits light to display anti-counterfeiting information.

In the technical scheme, when the receiving antenna layer is set as the NFC receiving antenna, the anti-counterfeiting element further comprises an NFC rectification chip, the NFC rectification chip is connected with the NFC receiving antenna and used for converting a high-frequency alternating current signal (usually at 13.56 MHz) received by the NFC receiving antenna into a direct current signal, so that an Organic Light-Emitting Diode (OLED) Light-Emitting element can be adopted as a flexible display element of the anti-counterfeiting element, the problem that the OLED Light-Emitting element cannot emit Light under the alternating current signal when the OLED Light-Emitting element is adopted as the flexible display element is solved, and the anti-counterfeiting element can generate diversified anti-counterfeiting information such as various colors, various images, dynamic patterns and the like when the anti-counterfeiting information is displayed.

In the above technical scheme, the anti-counterfeiting element further comprises an interference layer connected with the receiving antenna layer, wherein the interference layer is provided with a preset pattern, the preset pattern is the same as or different from the pattern on the receiving antenna layer, and the preset pattern is used for interfering the pattern on the receiving antenna layer.

In the technical scheme, the anti-counterfeiting element further comprises an interference layer, a preset pattern is arranged on the interference layer, and the preset pattern is the same as or different from the pattern of the receiving antenna layer, so that the receiving antenna pattern can be interfered through the preset pattern, and the concealment of the receiving antenna pattern is enhanced.

In the above technical solution, the shape of the receiving antenna layer includes one of a spiral shape, a T shape, a V shape, and a diamond shape.

In this solution, the shape of the receiving antenna layer may be a standard geometric figure, such as a rectangle, a square, a diamond, a triangle, etc., or may be a non-standard shaped antenna, such as a spiral, etc., or may be a letter shape, such as a T-shape, a V-shape, an S-shape, an M-shape, etc.

In the above-described aspect, when the shape of the concave-convex structure is square, the concave-convex structure includes a convex portion and a concave portion, the width of the convex portion is 0.1 μm or more and 10 μm or less, and the width of the concave portion is 0.1 μm or more and 10 μm or less.

In the above technical solution, when the shape of the concave-convex structure is one of a sine waveform and a zigzag, the distance between two adjacent peaks on the concave-convex structure is greater than or equal to 0.2 μm and less than or equal to 20 μm, wherein the peaks are the points on the concave-convex structure farthest from the substrate layer.

In the technical scheme, the diffraction effect of light can be ensured by limiting the specific size of the concave-convex structure.

In the above technical solution, the anti-counterfeiting information layer is disposed on the surface of the base material layer at intervals.

In this technical scheme, anti-fake information layer interval sets up in the surface of substrate layer, and concave-convex structure sets up in the surface that anti-fake information layer deviates from the substrate layer, can make anti-fake information can present the luminous effect of different colours be difficult for being found like this, in actual testing process, can distinguish by means of the magnifying glass like this, can not easily be perceived by the adversary.

In the above technical solution, the anti-counterfeiting element further comprises an adhesive layer disposed between the substrate layer and the anti-counterfeiting information layer.

In this technical scheme, the anti-fake component still includes the glue film, sets up between substrate layer and anti-fake information layer for fix anti-fake information layer at substrate layer surface.

In the above technical solution, the thickness of the receiving antenna layer is greater than 50nm.

In the technical scheme, the thickness of the receiving antenna layer is larger than 50nm, further larger than 100nm and further larger than 200nm, so that the intensity of current in a closed loop can be ensured, the luminous intensity of the flexible display element is further ensured, and the problem that anti-counterfeiting information cannot be detected in the later detection process due to low luminous intensity is avoided.

In the above technical solution, the sheet resistance of the receiving antenna layer is less than 0.5 Ω.

In the technical scheme, the sheet resistance of the receiving antenna layer is smaller than 0.5 omega, further smaller than 0.1 omega and further smaller than 0.05 omega, so that the overlarge sheet resistance of the receiving antenna layer can be avoided, the intensity of current in a closed loop is influenced, and the luminous intensity of the flexible display element is ensured.

In the above technical solution, the material of the receiving antenna layer is composed of a metal or a metal compound having conductivity, and the reflectance of the metal or the metal compound is 80% or more.

In this technical solution, the material of the receiving antenna layer is composed of a metal or a metal compound having conductive properties, and the reflectivity of the metal or the metal compound is equal to or greater than 80%, for example, the material of the receiving antenna layer may be gold, silver, copper, magnesium, aluminum, lithium or other conductive materials having bright specular reflection effects, such as a metal or a metal compound, and further, the receiving antenna layer may be one layer or multiple layers.

In the above technical solution, the metal material of the first electrode layer and the metal material of the receiving antenna layer are the same or different, and the metal material of the second electrode layer and the metal material of the receiving antenna layer are the same or different.

In this technical scheme, the metal material of first electrode layer is the same with the metal material of receiving antenna layer, can improve preparation efficiency like this, and the same material also can guarantee conductive efficiency simultaneously, improves luminous intensity, of course, according to the needs of difference, the metal material of first electrode layer and the metal material of receiving antenna layer also can be different. The metal material of the second electrode layer and the metal material of the receiving antenna layer may be the same material or different materials according to the requirement.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of embodiments according to the present invention will be apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 shows a schematic structural diagram of a security element provided by an embodiment of the present invention;

FIG. 2 is a schematic diagram of the structure of the security information layer of the security element according to the embodiment of the present invention;

FIG. 3 shows one of the effect graphs of diffraction effects of the receiving antenna layer of the security element provided by the embodiment of the present invention;

FIG. 4 is a second effect diagram of diffraction effects of a receiving antenna layer of the security element according to the embodiment of the present invention;

FIG. 5 shows one of the schematic structural diagrams of the combination of the receiving antenna layer and the interference layer of the security element provided by the embodiment of the present invention;

fig. 6 shows a second schematic structural diagram of a combination of a receiving antenna layer and an interference layer of a security element according to an embodiment of the present invention.

The correspondence between the reference numerals and the component names in fig. 1, 2, 5 and 6 is:

1 a security element, 12 a substrate layer, 14 a glue layer, 16 a security information layer, 162 a luminescent layer, 1622 a first electrode layer, 1624 a second electrode layer, 1626 a flexible display element, 164 a receiving antenna layer, 18 a relief structure, 19 an interference layer.

Detailed Description

In order that the above-recited aspects, features and advantages of embodiments according to the present application can be more clearly understood, a further detailed description of embodiments according to the present application will be rendered by reference to the appended drawings and detailed description. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of embodiments according to the application, however, embodiments according to the application may be practiced otherwise than as described herein, and thus the scope of protection according to embodiments of the application is not limited by the specific embodiments disclosed below.

As shown in fig. 1, the anti-counterfeiting element 1 provided in this embodiment includes a substrate layer 12, an anti-counterfeiting information layer 16 and a concave-convex structure 18, the substrate layer 12 is attached to the surface of the anti-counterfeiting article, the anti-counterfeiting information layer 16 is disposed on one side of the substrate layer 12, for example, on one side far away from the anti-counterfeiting article, the anti-counterfeiting information layer 16 can emit light and display anti-counterfeiting information after receiving radio wave signals, the concave-convex structure 18 is disposed on the anti-counterfeiting information layer 16, for example, on one side far away from the substrate layer 12, the concave-convex structure 18 can enable light emitted by the anti-counterfeiting information layer 16 to generate diffraction phenomenon when the anti-counterfeiting information layer 16 emits light, so that under the condition that the anti-counterfeiting information is observed from different observation angles, the anti-counterfeiting information can exhibit luminous effects of different colors, or exhibit luminous effects of alternating colors, or exhibit dynamic pattern conversion effects.

According to the anti-counterfeiting element 1 provided by the invention, the concave-convex structure 18 is arranged on the anti-counterfeiting information layer 16, so that when the anti-counterfeiting information layer 16 emits light, the concave-convex structure 18 can enable the light emitted by the anti-counterfeiting information layer 16 to generate diffraction phenomenon, so that users can obtain different color luminous effects when observing from different observation angles, the concave-convex structure 18 replaces the traditional angle-following color-changing layer, the preparation cost is reduced, and the difficulty of the anti-counterfeiting element 1 in plagiarism is increased.

In the above embodiment, the concave-convex structure 18 shape includes one of a sine waveform, a square waveform, and a saw tooth shape.

In the above embodiment, as shown in fig. 2, the anti-counterfeiting information layer 16 includes a light emitting layer 162 and a receiving antenna layer 164, the light emitting layer 162 is disposed on one side of the substrate layer 12, and the light emitting layer 162 can emit light after being electrified to display anti-counterfeiting information; the receiving antenna layer 164 is connected to the light emitting layer 162, and the receiving antenna layer 164 is configured to receive a radio wave signal to generate an induced current, so that the light emitting layer 162 is electrified to emit light; the surfaces of the light-emitting layer 162 and the receiving antenna layer 164 facing away from the substrate layer 12 are both provided with a concave-convex structure.

In this embodiment, the anti-counterfeiting information layer 16 includes a light emitting layer 162 and a receiving antenna layer 164, the light emitting layer 162 is disposed on one side of the substrate layer 12, for example, on a side far away from the anti-counterfeiting article, the light emitting layer 162 can emit light and display anti-counterfeiting information after being energized, the receiving antenna layer 164 is connected with the light emitting layer 162, and the receiving antenna layer 164 is used for receiving radio wave signals to generate induced current so that the light emitting layer 162 emits light when energized. By providing the light-emitting layer 162 and the receiving antenna layer 164, an induced current can be generated in the receiving antenna layer 164 by utilizing the principle of magneto-electric generation, so that the light-emitting layer 162 is electrified and emits light, and the concealment of the anti-counterfeiting element 1 is improved.

In the above-described embodiment, the concave-convex structure 18 is also capable of diffracting light reflected by the receiving antenna layer 164 under natural light irradiation.

In this embodiment, the concave-convex structure 18 can also diffract the light reflected by the receiving antenna layer 164 under the irradiation of natural light, so that the receiving antenna layer 164 of the present application is less likely to be found under normal conditions, and the concealment of the security element 1 is improved.

In the above embodiment, the receiving antenna layer 164 includes the receiving antenna, and the line width of the receiving antenna is 400 μm or more and 600 μm or less; the line spacing of the receiving antennas is 50 μm or more and 100 μm or less.

In this embodiment, since the concave-convex structure 18 can diffract the light reflected by the receiving antenna layer 164, so that the line width and the line spacing of the receiving antenna can be controlled to achieve the best hiding effect, it is difficult to find the receiving antenna of the present application without looking at the receiving antenna in detail, and as shown in fig. 3 and 4, as can be clearly seen from the effect diagrams of fig. 3 and 4, the receiving antenna has some highlighted spots, and these highlighted spots are all the diffraction phenomenon through the concave-convex structure 18, and the receiving antenna having the diffraction phenomenon has better hiding effect than the receiving antenna having no diffraction phenomenon of fig. 5 and 6.

Further, the receiving antenna may be a standard grid-shaped receiving antenna as shown in fig. 5, or a flower-shaped receiving antenna as shown in fig. 6, and further, the line width is 500 μm, the line spacing is 100 μm, and the number of turns is 16. Of course, according to different requirements, the receiving antenna can be provided with various standard shapes of other shapes, also can be provided with irregular shapes of other shapes, and the line width, the line spacing and the number of turns can be adaptively adjusted according to different shapes, so that redundant description is omitted.

In the above embodiment, the receiving antenna layer 164 includes a wireless charging receiving antenna, the anti-counterfeiting element 1 further includes a wireless charging chip connected with the wireless charging receiving antenna, and is configured to transmit a low-frequency ac pre-signal to the wireless charging receiving antenna at the wireless charging signal transmitting end, and transmit a matching success signal to the wireless charging signal transmitting end when the wireless charging receiving antenna receives the low-frequency ac pre-signal, so that the wireless charging signal transmitting end can continuously transmit radio waves to the wireless charging receiving antenna after receiving the matching success signal, so that the light-emitting layer 162 continuously emits light to display anti-counterfeiting information.

In this embodiment, when the receiving antenna layer 164 is configured as a wireless charging receiving antenna, the anti-counterfeiting element 1 further includes a wireless charging chip, and the wireless charging chip is connected with the wireless charging receiving antenna, when the wireless charging signal transmitting end transmits a low-frequency ac pre-signal to the wireless charging receiving antenna, the wireless charging chip can transmit a matching success signal to the wireless charging signal transmitting end, and after the wireless charging signal transmitting end receives the matching success signal fed back by the wireless charging chip, the wireless charging signal transmitting end can continuously transmit radio waves (usually between 100KHz and 205 KHz) to the wireless charging receiving antenna, so that the light-emitting layer 162 continuously displays anti-counterfeiting information. According to the application, the wireless charging chip is arranged, so that when a user performs wireless charging on the mobile phone end, the wireless charging chip can perform signal feedback with the mobile phone end, so that the mobile phone end can timely sense the wireless charging receiving antenna, and can continuously emit radio waves to the wireless charging receiving antenna, so that the luminous layer 162 continuously displays anti-counterfeiting information, and the problem that the mobile phone end cannot detect the wireless charging receiving antenna and automatically close the function of radio wave emission, so that the problem that radio waves cannot be continuously emitted to the wireless charging receiving antenna is solved.

In the above-described embodiment, as shown in fig. 2, the light-emitting layer 162 includes the first electrode layer 1622, the second electrode layer 1624, and the flexible display element 1626: the first electrode layer 1622 and the second electrode layer 1624 are both disposed on one side of the base material layer 12; the flexible display element 1626 is capable of emitting light in an energized state to display anti-counterfeiting information; both ends of the flexible display element 1626 are connected to the first electrode layer 1622 and the second electrode layer 1624, respectively; both ends of the receiving antenna layer 164 are connected to the first electrode layer 1622 and the second electrode layer 1624, respectively.

In this embodiment, the light-emitting layer 162 includes a first electrode layer 1622, a second electrode layer 1624 and a flexible display element 1626, the flexible display element 1626 is capable of emitting light in an energized state to display anti-counterfeiting information, two ends of the flexible display element 1626 are respectively connected with the first electrode layer 1622 and the second electrode layer 1624, and two ends of the receiving antenna layer 164 are respectively connected with the first electrode layer 1622 and the second electrode layer 1624, so that the first electrode layer 1622, the second electrode layer 1624, the flexible display element 1626 and the receiving antenna layer 164 form a closed loop, and thus when the receiving antenna layer 164 receives a radio wave signal and generates an induced current, the induced current flows in the closed loop, so that the flexible display element 1626 emits light and generates anti-counterfeiting information.

In the above embodiment, the receiving antenna layer 164 and the first electrode layer 1622 are in a unitary structure, and the receiving antenna layer 164 and the second electrode layer 1624 are in a unitary structure.

In this embodiment, the receiving antenna layer 164 and the first electrode layer 1622 are integrally formed, and the receiving antenna layer 164 and the second electrode layer 1624 are integrally formed, so that the conductive efficiency in the closed loop can be improved, and the manufacturing process is simplified, and the manufacturing efficiency of the product is improved. Of course, the receiving antenna layer 164 and the first electrode layer 1622 may be a separate structure, and the receiving antenna layer 164 and the second electrode layer 1624 may be a separate structure.

In the above embodiment, the flexible display element 1626 includes one of a flexible organic electroluminescent element, a flexible inorganic electroluminescent element, and a flexible electrochromic element.

In this embodiment, the flexible display element 1626 includes one of a flexible organic electroluminescent element, a flexible inorganic electroluminescent element, and a flexible electrochromic element, which may enable the security element 1 of the present application to generate various security information such as various colors, various images, and dynamic patterns when displaying the security information.

In the above embodiment, the receiving antenna layer 164 includes an NFC receiving antenna, and the anti-counterfeiting element 1 further includes an NFC rectifying chip connected to the NFC receiving antenna, so as to convert the high-frequency ac signal received by the NFC receiving antenna into a dc signal, so that the light emitting layer 162 is electrified and emits light to display anti-counterfeiting information.

In this embodiment, when the receiving antenna layer 164 is set as an NFC (Near Field Communication, near field communication technology) receiving antenna, the anti-counterfeiting element 1 further includes an NFC rectifying chip, and the NFC rectifying chip is connected with the NFC receiving antenna and is used for converting a high-frequency alternating current signal (usually at 13.56 MHz) received by the NFC receiving antenna into a direct current signal, so that the flexible display element 1626 of the anti-counterfeiting element 1 of the application can adopt an OLED light-emitting element, and the problem that the OLED light-emitting element cannot emit light under an alternating current signal when the OLED light-emitting element is adopted as the flexible display element 1626 is solved, so that the anti-counterfeiting element 1 of the application can generate diversified anti-counterfeiting information such as various colors, various images, dynamic patterns and the like when displaying the anti-counterfeiting information.

In the above embodiment, the security element 1 further includes an interference layer 19 connected to the receiving antenna layer 164, where a preset pattern is disposed on the interference layer 19, and the preset pattern is the same as or different from the pattern on the receiving antenna layer 164, and is used to interfere with the pattern on the receiving antenna layer 164.

In this embodiment, the security element 1 further includes an interference layer 19, where a preset pattern is disposed on the interference layer 19, where the preset pattern is the same as or different from the pattern of the receiving antenna layer 164, so that the receiving antenna pattern can be interfered by the preset pattern, and the concealment of the receiving antenna pattern is enhanced.

For example, as shown in fig. 5, the grid-shaped receiving antenna layer 164 is formed by implanting the reverse-shaped interference layer 19 in the receiving antenna coil, for example, as shown in fig. 6, the flower-shaped structure is divided into two parts, the flower-shaped structure is divided into the receiving antenna layer 164, the receiving antenna layer 164 comprises multiple receiving antennas, the flower stem and the sepal are divided into the interference layer 19, that is, the receiving antenna layer 164 and the interference layer 19 together form a flower-shaped structure, so that only one flower-shaped structure can be seen without looking down, and thus, the receiving antenna layer 164 has a part of hiding effect, thereby improving the concealment, and the position and the pattern of the interference layer 19 can be arbitrarily set according to practical requirements.

In the above-described embodiment, the shape of the receiving antenna layer 164 includes one of a spiral shape, a T shape, a V shape, and a diamond shape.

In this embodiment, the shape of the receiving antenna layer 164 may be a standard geometric figure, such as a rectangle, square, diamond, triangle, etc., a non-standard shaped antenna, such as a spiral, etc., or a letter shape, such as a T-shape, V-shape, S-shape, M-shape, etc.

In the above embodiment, when the shape of the concave-convex structure 18 is a square waveform, the concave-convex structure 18 includes the convex portion and the concave portion, the width of the convex portion is 0.1 μm or more and 10 μm or less, and the width of the concave portion is 0.1 μm or more and 10 μm or less.

In the above embodiment, when the shape of the concave-convex structure 18 is one of a sine waveform or a zigzag, the distance between two adjacent peaks on the concave-convex structure 18 is greater than or equal to 0.2 μm and less than or equal to 20 μm, wherein a peak is a point on the concave-convex structure 18 farthest from the base material layer 12.

In this embodiment, limiting the specific dimensions of the relief structure 18 may ensure the diffractive effect of light.

In the above embodiment, the security information layer 16 is disposed on the surface of the substrate layer 12 at intervals.

In this embodiment, the anti-counterfeiting information layer 16 is disposed on the surface of the substrate layer 12 at intervals, and the concave-convex structure 18 is disposed on the surface of the anti-counterfeiting information layer 16 facing away from the substrate layer 12, so that the anti-counterfeiting information can show different colors of light-emitting effects and is not easy to be found, and thus can be distinguished, for example, by means of a magnifying glass in the actual detection process, and cannot be easily perceived by an adversary.

In the above embodiments, the security element 1 further comprises a glue layer 14 arranged between the substrate layer 12 and the security information layer 16.

In this embodiment the security element 1 further comprises a glue layer 14 arranged between the substrate layer 12 and the security information layer 16 for securing the security information layer 16 to the surface of the substrate layer 12.

In the above embodiment, the thickness of the receiving antenna layer 164 is greater than 50nm.

In this embodiment, the thickness of the receiving antenna layer 164 is greater than 50nm, further greater than 100nm, and further greater than 200nm, so that the intensity of the current in the closed loop can be ensured, and further the luminous intensity of the flexible display element 1626 is ensured, so that the problem that the anti-counterfeiting information cannot be detected in the later detection process due to low luminous intensity is avoided.

In the above embodiment, fang Zuxiao of the receiving antenna layer 164 is at 0.5 Ω.

In this embodiment, fang Zuxiao of the receiving antenna layer 164 is less than 0.5Ω, more preferably less than 0.1Ω, and still more preferably less than 0.05Ω, so that the excessive sheet resistance of the receiving antenna layer 164 can be avoided, the intensity of the current in the closed loop can be influenced, and the luminous intensity of the flexible display element 1626 can be ensured.

In the above embodiment, the material of the receiving antenna layer 164 is composed of a metal or a metal compound having conductive properties, and the reflectance of the metal or the metal compound is 80% or more.

In this embodiment, the material of the receiving antenna layer 164 is composed of a metal or a metal compound having conductive properties, and the reflectivity of the metal or the metal compound is 80% or more, for example, the material of the receiving antenna layer 164 may be gold, silver, copper, magnesium, aluminum, lithium or other conductive materials having bright specular reflection effects, and further, the receiving antenna layer 164 may be one layer or multiple layers.

In the above embodiment, the metal material of the first electrode layer 1622 and the metal material of the receiving antenna layer 164 are the same or different, and the metal material of the second electrode layer 1624 and the metal material of the receiving antenna layer 164 are the same or different.

In this embodiment, the metal material of the first electrode layer 1622 and the metal material of the receiving antenna layer 164 are the same, so that the manufacturing efficiency can be improved, meanwhile, the same material can also ensure the conductive efficiency and improve the luminous intensity, and of course, the metal material of the first electrode layer 1622 and the metal material of the receiving antenna layer 164 can also be different according to different needs. The metal material of the second electrode layer 1624 and the metal material of the receiving antenna layer 164 may be the same or different according to the requirement.

Another embodiment of the present invention provides an optically variable security element 1, at least comprising a substrate layer 12, a glue layer 14 and a metal layer, wherein the substrate layer 12 is a transparent substrate, the glue layer 14 is a transparent glue layer 14, the transparent glue layer 14 is disposed above the transparent substrate, and the metal layer is disposed above the transparent glue layer 14. The metal layer is composed of three metal areas and a hollowed-out area, at least part of the first metal area of the metal layer forms an antenna pattern, namely a receiving antenna layer 164, the upper surface of the transparent adhesive layer 14 is provided with a concave-convex structure 18, the upper surface of the receiving antenna layer 164 is provided with a concave-convex structure 18 which is the same as the change rule of the transparent adhesive layer 14, the second metal area of the metal layer forms an electrode layer for conducting the flexible display element 1626, one electrode layer is connected with one end point of the receiving antenna layer 164 to form an electrode-antenna integrated structure, the other electrode layer is connected with the other end point of the receiving antenna layer 164, and the flexible display element 1626 is respectively connected with the two electrode layers.

In the above embodiment, the receiving antenna layer 164 further includes at least an NFC rectifying chip, where the antenna is an NFC receiving antenna (typically at 13.56MH _Z ) When the NFC rectifying chip transmits the high-frequency ac signal to the NFC receiving antenna, the NFC rectifying chip converts the high-frequency ac signal received by the NFC receiving antenna into a dc signal, and performs dc power supply on the flexible display element 1626, so that the flexible display element 1626 emits light or displays information.

In the above embodiment, at least a wireless charging chip is further included on the receiving antenna layer 164. When the antenna is a wireless charging receiving antenna (usually at 100KH _Z To 205KH _Z ) When in use, the wireless charging chip has the following functions: the wireless charging signal transmitting terminal transmits a low-frequency alternating current pre-signal to the wireless charging receiving antenna, the wireless charging chip feeds back the low-frequency alternating current pre-signal, the transmitting terminal continuously transmits radio waves after receiving the feedback, and the wireless charging receiving antenna continuously supplies power to the flexible display element 1626 after receiving the continuous radio wave signals, so that the flexible display element 1626 emits light or displays information.

In the above embodiment, the security element 1 further includes the interference layer 19 formed of the third metal region of the metal layer in a pattern similar to the general pattern of the receiving antenna layer 164 for interfering with the receiving antenna layer 164 to enhance the concealment of the receiving antenna layer 164.

In the above-described embodiment, the receiving antenna layer 164 formed of the metal region of the metal layer includes a Radio wave receiving antenna that can be recognized by a Radio wave transmitting apparatus, such as an NFC antenna, a wireless charging antenna, an RFID antenna (Radio-frequency-Identification technology).

In the above embodiments, the receiving antenna layer 164 of the metal layer is a helical antenna, a T-shaped antenna, a V-shaped antenna, a diamond antenna, and other shaped antennas.

In the above-described embodiments, the flexible display element 1626 includes a flexible organic electroluminescent element, a flexible inorganic electroluminescent element, a flexible electrochromic element, and the like.

In the above-described embodiments, the upper surface relief structure 18 of the transparent adhesive layer 14 has a shape including a sine wave, a square wave, a saw tooth, and other relief shapes that can form a diffraction optically variable feature.

In the above-described embodiment, the concave-convex structure 18 of the upper surface of the first metal region of the metal layer includes a sinusoidal waveform, a square waveform, a zigzag waveform, and other concave-convex shapes capable of forming the diffraction optically variable feature.

In the above embodiment, the line width of the concave-convex structure 18 on the upper surface of the transparent adhesive layer 14 is between 0.1 μm and 10 μm, that is, when the shape of the concave-convex structure 18 is square, the concave-convex structure 18 includes convex portions and concave portions, and the width of the convex portions is 0.1 μm or more and 10 μm or less. Preferably 0.5 μm to 5 μm, more preferably 0.8 μm to 1.5 μm; the line pitch is between 0.1 μm and 10 μm, that is, when the shape of the concave-convex structure 18 is a square waveform, the concave-convex structure 18 includes convex portions and concave portions, and the width of the concave portions is 0.1 μm or more and 10 μm or less; preferably 0.5 μm to 5 μm, more preferably 0.8 μm to 1.5 μm. The trench depth is between 0.1 μm and 10 μm, preferably between 0.5 μm and 5 μm, more preferably between 0.8 and 1.5 μm. The depth of the relief structure 18 is between 0.1 μm and 10 μm, preferably between 0.5 μm and 5 μm, more preferably between 0.8 μm and 1.5 μm.

In the above embodiment, the thickness of the metal layer is greater than 50nm, preferably greater than 100nm, and more preferably greater than 200nm.

In the above embodiment, the sheet resistance of the metal layer is less than 0.5Ω, preferably less than 0.1Ω, and more preferably less than 0.05Ω.

In the above embodiment, the diffractive optically variable feature includes an iridescent effect in which the color changes from one color to another or a plurality of color changes are exhibited as a function of the viewing angle, and the diffractive optically variable feature also includes a depth of field, a dynamic pattern change effect.

In the above embodiment, the metal layer exhibits one metal color as viewed from the upper surface and exhibits the same or different metal color as viewed from the lower surface.

In the above embodiment, the material of the receiving antenna layer 164 is composed of a metal or a metal compound having conductive properties, and the reflective index of the metal or the metal compound is 80% or more, for example, the material of the receiving antenna layer 164 may be gold, silver, copper, magnesium, aluminum, lithium or other conductive materials having bright specular reflection effects, such as a metal, a metal compound, or the like, and further, the receiving antenna layer 164 may be one layer or multiple layers.

In the above embodiment, the metal material of the first electrode layer 1622 and the metal material of the receiving antenna layer 164 are the same, so that the manufacturing efficiency can be improved, meanwhile, the same material can also ensure the conductive efficiency and improve the luminous intensity, and of course, the metal material of the first electrode layer 1622 and the metal material of the receiving antenna layer 164 can also be different according to different needs. The metal material of the second electrode layer 1624 and the metal material of the receiving antenna layer 164 may be the same or different according to the requirement.

In the above embodiment, both the base material layer 12 and the adhesive layer 14 have high transparency, and the transparency of the base material layer 12 is 80% or more, and the transparency of the adhesive layer 14 is 80% or more.

In embodiments according to the invention, the terms "first," "second," "third," and the like are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the embodiments according to the present invention can be understood by those of ordinary skill in the art according to specific circumstances.

Moreover, although operations are depicted in a particular order, this should be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the invention. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single implementation. Conversely, various features that are described in the context of a single implementation can also be implemented in multiple implementations separately or in any suitable subcombination.

Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are example forms of implementing the claims.

The above is only a preferred embodiment according to the embodiment of the present invention and is not intended to limit the embodiment according to the present invention, and various modifications and variations may be possible to the embodiment according to the present invention for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments according to the present invention should be included in the protection scope of the embodiments according to the present invention.

Claims (13)

1. A security element comprising:

a substrate layer;

the anti-counterfeiting information layer is arranged on one side of the substrate layer and can emit light after receiving radio wave signals so as to display anti-counterfeiting information;

the surface of the anti-counterfeiting information layer, which is away from one side of the substrate layer, is provided with a concave-convex structure, and the concave-convex structure can enable light emitted by the anti-counterfeiting information layer to generate diffraction phenomenon when the anti-counterfeiting information layer emits light.

2. The security element of claim 1 wherein,

the diffraction phenomenon comprises that under the condition that the anti-counterfeiting information is observed from different observation angles, the anti-counterfeiting information layer can show luminous effects of different colors, or show luminous effects of alternating multiple colors, or show dynamic pattern conversion effects.

3. The security element of claim 1 wherein,

the concave-convex structure shape comprises one of a sine waveform, a square waveform and a saw tooth shape.

4. The security element of claim 1 wherein the security information layer comprises:

the luminescent layer is arranged on one side of the base material layer and can emit light after being electrified so as to display the anti-counterfeiting information;

a receiving antenna layer connected with the light emitting layer, the receiving antenna layer being used for receiving radio wave signals to generate induced current so as to enable the light emitting layer to be electrified and emit light;

the surface of the light-emitting layer and the surface of the receiving antenna layer, which is away from one side of the substrate layer, are both provided with the concave-convex structure.

5. The security element of claim 4 wherein,

the concave-convex structure can also diffract the light reflected by the receiving antenna layer under the irradiation of natural light.

6. The security element of claim 5 wherein the receiving antenna layer comprises a receiving antenna,

the line width of the receiving antenna is more than or equal to 400 mu m and less than or equal to 600 mu m;

the line spacing of the receiving antenna is 50 μm or more and 100 μm or less.

7. The security element of claim 4 wherein the receiving antenna layer comprises a wireless charging receiving antenna, the security element further comprising:

the wireless charging chip is connected with the wireless charging receiving antenna and is used for transmitting a low-frequency alternating current pre-signal to the wireless charging receiving antenna at the wireless charging signal transmitting end, and transmitting a matching success signal to the wireless charging signal transmitting end under the condition that the wireless charging receiving antenna receives the low-frequency alternating current pre-signal, so that the wireless charging signal transmitting end can continuously transmit radio waves to the wireless charging receiving antenna after receiving the matching success signal, and the luminous layer continuously electrifies and emits light to display the anti-counterfeiting information.

8. The security element of claim 4 wherein the luminescent layer comprises:

the first electrode layer and the second electrode layer are arranged on one side of the substrate layer;

A flexible display element capable of emitting light in an energized state to display the anti-counterfeiting information;

two ends of the flexible display element are respectively connected with the first electrode layer and the second electrode layer;

and two ends of the receiving antenna layer are respectively connected with the first electrode layer and the second electrode layer.

9. The security element of claim 8 wherein,

the receiving antenna layer and the first electrode layer are of an integrated structure; and/or

The receiving antenna layer and the second electrode layer are of an integrated structure; and/or

The flexible display element comprises one of a flexible organic electroluminescent element, a flexible inorganic electroluminescent element and a flexible electrochromic element.

10. The security element of claim 4 wherein the receiving antenna layer comprises an NFC receiving antenna, the security element further comprising:

and the NFC rectification chip is connected with the NFC receiving antenna and is used for converting the high-frequency alternating current signal received by the NFC receiving antenna into a direct current signal so as to electrify and emit light of the light-emitting layer to display the anti-counterfeiting information.

11. The security element of claim 4, further comprising:

The interference layer is connected with the receiving antenna layer, a preset pattern is arranged on the interference layer, the preset pattern is the same as or different from the pattern on the receiving antenna layer, and the preset pattern is used for interfering the pattern on the receiving antenna layer.

12. The security element of claim 1 wherein,

when the shape of the concave-convex structure is square, the concave-convex structure comprises convex parts and concave parts, wherein the width of the convex parts is more than or equal to 0.1 μm and less than or equal to 10 μm, and the width of the concave parts is more than or equal to 0.1 μm and less than or equal to 10 μm; and/or

When the shape of the concave-convex structure is one of sine wave shape or zigzag shape, the distance between two adjacent vertexes on the concave-convex structure is more than or equal to 0.2 mu m and less than or equal to 20 mu m, wherein the vertexes are the points farthest from the substrate layer on the concave-convex structure; and/or

The anti-counterfeiting information layer is arranged on the surface of the base material layer in a spacing mode.

13. The security element of any one of claims 1 to 12, further comprising:

and the adhesive layer is arranged between the substrate layer and the anti-counterfeiting information layer.