Anti-counterfeiting elements

Abstract

The present invention provides an anti-counterfeiting element, which relates to the field of anti-counterfeiting technology. The anti-counterfeiting element includes: a substrate layer; an anti-counterfeiting information layer, which is arranged on one side of the substrate layer and can emit light after receiving a radio wave signal to display anti-counterfeiting information; and a concave-convex structure, which is arranged on the anti-counterfeiting information layer and can cause the light emitted by the anti-counterfeiting information layer to diffract when the anti-counterfeiting information layer emits light, so that when the anti-counterfeiting information is observed from different viewing angles, the anti-counterfeiting information can present a luminous effect of different colors, or a luminous effect of alternating multiple colors, or a dynamic pattern changing effect. The anti-counterfeiting element provided by the present invention is provided with a concave-convex structure on the anti-counterfeiting information layer, so that when the anti-counterfeiting information layer emits light, the concave-convex structure can cause the light emitted by the anti-counterfeiting information layer to diffract, so that when a user observes from different viewing angles, the anti-counterfeiting information can present a luminous effect of different colors.

Description

Technical Field

[0001] The present invention relates to the field of anti-counterfeiting technology, and in particular to an anti-counterfeiting element. Background Art

[0002] In order to achieve various luminous effects, existing anti-counterfeiting elements usually add an angular color-changing layer during the preparation of the anti-counterfeiting elements, which increases the preparation cost.

[0003] Therefore, in order to reduce the preparation cost, inventing an anti-counterfeiting element that can achieve the angular color-changing effect without adding an angular color-changing layer is a technical problem that needs to be solved urgently. Summary of the Invention

[0004] The present invention aims to solve or improve at least one of the above technical problems.

[0005] The technical solution of the present invention is to provide an anti-counterfeiting element.

[0006] The anti-counterfeiting element provided by the present invention includes: a substrate layer; an anti-counterfeiting information layer, which is arranged on one side of the substrate layer, and the anti-counterfeiting information layer can emit light after receiving a radio wave signal to display anti-counterfeiting information; a concave-convex structure is provided on the surface of the anti-counterfeiting information layer on the side away from the substrate layer, and the concave-convex structure can cause the light emitted by the anti-counterfeiting information layer to diffract when the anti-counterfeiting information layer emits light.

[0007] The diffraction phenomenon includes that when the anti-counterfeiting information is observed from different observation angles, the anti-counterfeiting information can present a luminous effect of different colors, or a luminous effect of alternating multiple colors, or a dynamic pattern change effect.

[0008] The anti-counterfeiting element provided by the present invention includes a substrate layer, an anti-counterfeiting information layer and a concave-convex structure. The substrate layer is attached to the surface of the anti-counterfeiting article. The anti-counterfeiting information layer is arranged on one side of the substrate layer, for example, on the side away from the anti-counterfeiting article. The anti-counterfeiting information layer can emit light and display the anti-counterfeiting information after receiving a radio wave signal. The concave-convex structure is arranged on the anti-counterfeiting information layer, for example, on the side of the anti-counterfeiting information layer away from the substrate layer. The concave-convex structure can cause the light emitted by the anti-counterfeiting information layer to diffract when the anti-counterfeiting information layer emits light, so that when the anti-counterfeiting information is observed from different observation angles, the anti-counterfeiting information can present a luminous effect of different colors, or a luminous effect of alternating multiple colors, or a dynamic pattern changing effect. The anti-counterfeiting element provided by the present invention is provided with a concave-convex structure on the anti-counterfeiting information layer. When the anti-counterfeiting information layer emits light, the concave-convex structure can cause the light emitted by the anti-counterfeiting information layer to diffract, so that when the user observes from different observation angles, the user can obtain a luminous effect of different colors. By replacing the traditional angular color-changing layer with the concave-convex structure, not only the preparation cost is reduced, but also the difficulty of the anti-counterfeiting element being copied is increased.

[0009] In the above technical solution, the shape of the concave-convex structure includes one of a sine wave, a square wave, and a sawtooth shape.

[0010] In the above technical solution, the anti-counterfeiting information layer includes a light-emitting layer, which is arranged on one side of the substrate layer. The light-emitting layer can emit light when powered on to display the anti-counterfeiting information; a receiving antenna layer, which is connected to the light-emitting layer. The receiving antenna layer is used to receive radio wave signals to generate an induced current so that the light-emitting layer is powered on to emit light; the surfaces of the light-emitting layer and the receiving antenna layer facing away from the substrate layer are both provided with a concave-convex structure.

[0011] In this technical solution, the anti-counterfeiting information layer includes a luminescent layer and a receiving antenna layer. The luminescent layer is disposed on one side of the substrate layer, for example, on the side away from the anti-counterfeiting article. When energized, the luminescent layer emits light and displays the anti-counterfeiting information. The receiving antenna layer is connected to the luminescent layer and is used to receive radio wave signals to generate an induced current, which causes the luminescent layer to energize and emit light. By providing the luminescent layer and the receiving antenna layer, the principle of magnetoelectricity is utilized to generate an induced current within the receiving antenna layer, which in turn causes the luminescent layer to energize and emit light, thereby improving the concealment of the anti-counterfeiting element.

[0012] In the above technical solution, under the irradiation of natural light, the concave-convex structure can also cause the light reflected by the receiving antenna layer to diffract.

[0013] In this technical solution, under natural light, the concave-convex structure can also cause the light reflected by the receiving antenna layer to diffract, which makes it more difficult to detect the receiving antenna layer of the present application under normal circumstances, thereby improving the concealment of the anti-counterfeiting element.

[0014] In the above technical solution, the receiving antenna layer includes a receiving antenna, the line width of the receiving antenna is greater than or equal to 400 μm and less than or equal to 600 μm; the line spacing of the receiving antenna is greater than or equal to 50 μm and less than or equal to 100 μm.

[0015] In this technical solution, since the concave-convex structure can cause the light reflected by the receiving antenna layer to diffract, the line width and line spacing of the receiving antenna can be controlled to achieve the best hiding effect. Without careful observation, it is difficult to find the receiving antenna of the present invention.

[0016] Furthermore, the receiving antenna may be a wireless charging receiving antenna or an NFC (Near-Field-Communication) receiving antenna.

[0017] In the above technical solution, the receiving antenna layer includes a wireless charging receiving antenna, and the anti-counterfeiting element also includes: a wireless charging chip, connected to the wireless charging receiving antenna, for transmitting a low-frequency AC pre-signal to the wireless charging receiving antenna at the wireless charging signal transmitting end, and when the wireless charging receiving antenna receives the low-frequency AC pre-signal, it transmits a matching success signal to the wireless charging signal transmitting end, so that the wireless charging signal transmitting end can continue to transmit radio waves to the wireless charging receiving antenna after receiving the matching success signal, so that the light-emitting layer continues to emit light to display anti-counterfeiting information.

[0018] In this technical solution, when the receiving antenna layer is constructed as a wireless charging receiving antenna, the anti-counterfeiting element also includes a wireless charging chip, which is connected to 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. After the wireless charging signal transmitting end receives the matching success signal fed back by the wireless charging chip, it can continuously transmit radio waves (usually at 100KHz to 205KHz) to the wireless charging receiving antenna, so that the luminous layer continuously displays the anti-counterfeiting information. This application sets a wireless charging chip so that when the user is wirelessly charging the mobile phone, the wireless charging chip can feedback signals with the mobile phone, so that the mobile phone can promptly sense the wireless charging receiving antenna, so that it can continuously transmit radio waves to the wireless charging receiving antenna, so that the luminous layer continuously displays the anti-counterfeiting information, avoiding the problem that the mobile phone cannot detect the wireless charging receiving antenna and automatically turns off the radio wave transmission function, resulting in the inability to continuously transmit radio waves to the wireless charging receiving antenna.

[0019] In the above technical solution, the light-emitting layer includes: a first electrode layer and a second electrode layer, both of which are arranged on one side of the substrate layer; a flexible display element, which can emit light when powered on to display anti-counterfeiting information; the two ends of the flexible display element are respectively connected to the first electrode layer and the second electrode layer; and the two ends of the receiving antenna layer are respectively connected to the first electrode layer and the second electrode layer.

[0020] In this technical solution, the light-emitting layer includes a first electrode layer, a second electrode layer and a flexible display element. The flexible display element can emit light when powered on to display anti-counterfeiting information. The two ends of the flexible display element are respectively connected to the first electrode layer and the second electrode layer, and the two ends of the receiving antenna layer are respectively connected to the first electrode layer and the second electrode layer. This is equivalent to the first electrode layer, the second electrode layer, the flexible display element and the receiving antenna layer forming a closed loop. When the receiving antenna layer receives a radio wave signal and generates an induced current, an induced current flows in the closed loop, thereby causing the flexible display element to emit light and generate anti-counterfeiting information.

[0021] In the above technical solution, the receiving antenna layer and the first electrode layer are an integrated structure, and the receiving antenna layer and the second electrode layer are an integrated structure.

[0022] In this technical solution, the receiving antenna layer and the first electrode layer are integrated into a single structure, and the receiving antenna layer and the second electrode layer are integrated into a single structure. This improves the conductive efficiency within the closed loop, simplifies the manufacturing process, and improves product manufacturing efficiency. Of course, the receiving antenna layer and the first electrode layer can also be separate structures, and the receiving antenna layer and the second electrode layer can also be separate structures.

[0023] In the above technical solution, the flexible display element includes: one of a flexible organic electroluminescent element, a flexible inorganic electroluminescent element, and a flexible electrochromic element.

[0024] In this technical solution, the flexible display element includes one of a flexible organic electroluminescent element, a flexible inorganic electroluminescent element, and a flexible electrochromic element. This enables the anti-counterfeiting element of the present application to produce a variety of anti-counterfeiting information such as multiple colors, multiple images, and dynamic patterns when displaying anti-counterfeiting information.

[0025] In the above technical solution, the receiving antenna layer includes an NFC (Near-Field-Communication, short-range wireless communication technology) receiving antenna, and the anti-counterfeiting element also includes: an NFC rectifier chip, which is connected to the NFC receiving antenna and is used to convert the high-frequency AC signal received by the NFC receiving antenna into a DC signal, so that the light-emitting layer is energized and emits light to display anti-counterfeiting information.

[0026] In this technical solution, when the receiving antenna layer is set as an NFC receiving antenna, the anti-counterfeiting element also includes an NFC rectifier chip, which is connected to the NFC receiving antenna and is used to convert the high-frequency AC signal (usually at 13.56MHz) received by the NFC receiving antenna into a DC signal. In this way, the flexible display element of the anti-counterfeiting element of the present application can adopt an OLED (Organic Light-Emitting Diode) light-emitting element, which solves the problem that when an OLED light-emitting element is used as a flexible display element, the OLED light-emitting element cannot emit light under an AC signal. The anti-counterfeiting element of the present application can generate a variety of anti-counterfeiting information such as multiple colors, multiple images and dynamic patterns when displaying anti-counterfeiting information.

[0027] In the above technical solution, the anti-counterfeiting element also includes an interference layer, which is connected to the receiving antenna layer. A preset pattern is set on the interference layer. The preset pattern is the same as or different from the pattern on the receiving antenna layer. The preset pattern is used to interfere with the pattern on the receiving antenna layer.

[0028] In this technical solution, the anti-counterfeiting element also includes an interference layer, on which a preset pattern is arranged. The preset pattern is the same as or different from the pattern of the receiving antenna layer. In this way, the preset pattern can interfere with the receiving antenna pattern and enhance the concealment of the receiving antenna pattern.

[0029] 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.

[0030] In this technical solution, the shape of the receiving antenna layer can be a standard geometric shape, such as a rectangle, square, diamond, triangle, etc., or it can be a non-standard special-shaped antenna, such as a spiral, etc., or it can be the shape of a letter, such as T-shape, V-shape, S-shape, M-shape, etc.

[0031] In the above technical solution, when the shape of the concave-convex structure is a square waveform, the concave-convex structure includes a convex portion and a concave portion, the width of the convex portion is greater than or equal to 0.1μm and less than or equal to 10μm, and the width of the concave portion is greater than or equal to 0.1μm and less than or equal to 10μm.

[0032] In the above technical solution, when the shape of the concave-convex structure is a sine wave or a sawtooth shape, the distance between two adjacent vertices on the concave-convex structure is greater than or equal to 0.2 μm and less than or equal to 20 μm, wherein the vertex is the point on the concave-convex structure farthest from the substrate layer.

[0033] In this technical solution, limiting the specific size of the concave-convex structure can ensure the diffraction effect of light.

[0034] In the above technical solution, the anti-counterfeiting information layer is arranged at intervals on the surface of the substrate layer.

[0035] In this technical solution, the anti-counterfeiting information layer is arranged at intervals on the surface of the substrate layer, and the concave-convex structure is arranged on the surface of the anti-counterfeiting information layer away from the substrate layer. This allows the anti-counterfeiting information to present luminous effects of different colors and is not easy to be discovered. In this way, during the actual detection process, for example, it can be identified with the help of a magnifying glass and will not be easily noticed by the opponent.

[0036] In the above technical solution, the anti-counterfeiting element further includes an adhesive layer, which is arranged between the substrate layer and the anti-counterfeiting information layer.

[0037] In this technical solution, the anti-counterfeiting element further includes an adhesive layer, which is arranged between the substrate layer and the anti-counterfeiting information layer and is used to fix the anti-counterfeiting information layer on the surface of the substrate layer.

[0038] In the above technical solution, the thickness of the receiving antenna layer is greater than 50 nm.

[0039] In this technical solution, the thickness of the receiving antenna layer is greater than 50nm, further greater than 100nm, and further greater than 200nm. This can ensure the intensity of the current in the closed loop, and thus ensure the luminous intensity of the flexible display element, avoiding the problem of low luminous intensity leading to the inability to detect anti-counterfeiting information in the later detection process.

[0040] In the above technical solution, the square resistance of the receiving antenna layer is less than 0.5Ω.

[0041] In this technical solution, the square resistance of the receiving antenna layer is less than 0.5Ω, further less than 0.1Ω, and further less than 0.05Ω. This can avoid the square resistance of the receiving antenna layer being too large, affecting the intensity of the current in the closed loop, and ensuring the luminous intensity of the flexible display element.

[0042] In the above technical solution, the material of the receiving antenna layer is composed of a metal or a metal compound having conductive properties, and the light reflectivity of the metal or the metal compound is greater than or equal to 80%.

[0043] In this technical solution, the material of the receiving antenna layer is composed of a metal or metal compound with conductive properties, and the reflectivity of the metal or metal compound is greater than or equal to 80%. For example, the material of the receiving antenna layer can be composed of gold, silver, copper, magnesium, aluminum, lithium or other conductive materials such as metals, metal compounds with bright mirror reflection effects. Furthermore, the receiving antenna layer can be one layer or multiple layers.

[0044] In the above technical solution, the metal material of the first electrode layer is the same as or different from the metal material of the receiving antenna layer, and the metal material of the second electrode layer is the same as or different from the metal material of the receiving antenna layer.

[0045] In this technical solution, the metal material of the first electrode layer and the receiving antenna layer are the same, which improves manufacturing efficiency. The same material also ensures electrical conductivity and enhances luminous intensity. Of course, depending on different needs, the metal material of the first electrode layer and the receiving antenna layer can also be different. The metal material of the second electrode layer and the receiving antenna layer can also be the same or different as needed.

[0046] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The above and / or additional aspects and advantages of the embodiments of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0048] Figure 1A schematic structural diagram of an anti-counterfeiting element provided by an embodiment of the present invention is shown;

[0049] Figure 2 A schematic structural diagram of an anti-counterfeiting information layer of an anti-counterfeiting element provided by an embodiment of the present invention is shown;

[0050] Figure 3 One of the effect diagrams showing the diffraction effect of the receiving antenna layer of the anti-counterfeiting element provided by an embodiment of the present invention;

[0051] Figure 4 A second effect diagram showing the diffraction effect of the receiving antenna layer of the anti-counterfeiting element provided by an embodiment of the present invention;

[0052] Figure 5 One of the structural schematic diagrams of the combination of the receiving antenna layer and the interference layer of the anti-counterfeiting element provided by an embodiment of the present invention is shown;

[0053] Figure 6 The second structural diagram of the combination of the receiving antenna layer and the interference layer of the anti-counterfeiting element provided by the embodiment of the present invention is shown.

[0054] in, Figure 1 、 Figure 2 、 Figure 5 and Figure 6 The corresponding relationship between the reference numerals and component names is as follows:

[0055] 1 anti-counterfeiting element, 12 substrate layer, 14 adhesive layer, 16 anti-counterfeiting information layer, 162 light-emitting layer, 1622 first electrode layer, 1624 second electrode layer, 1626 flexible display element, 164 receiving antenna layer, 18 concave-convex structure, 19 interference layer. DETAILED DESCRIPTION

[0056] In order to more clearly understand the above aspects, features and advantages of the embodiments of the present invention, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, unless there is a conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0057] In the following description, many specific details are set forth to facilitate a full understanding of the embodiments according to the present invention. However, the embodiments according to the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the embodiments according to the present invention is not limited to the specific embodiments disclosed below.

[0058] like Figure 1As shown, 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 adhered to the surface of the anti-counterfeiting article. The anti-counterfeiting information layer 16 is arranged on one side of the substrate layer 12, for example, on the side away from the anti-counterfeiting article. The anti-counterfeiting information layer 16 can emit light and display anti-counterfeiting information after receiving a radio wave signal. The concave-convex structure 18 is arranged on the anti-counterfeiting information layer 16, for example, on the side of the anti-counterfeiting information layer 16 away from the substrate layer 12. When the anti-counterfeiting information layer 16 emits light, the concave-convex structure 18 can cause the light emitted by the anti-counterfeiting information layer 16 to diffract, so that when the anti-counterfeiting information is observed from different observation angles, the anti-counterfeiting information can present a luminous effect of different colors, or a luminous effect of alternating multiple colors, or a dynamic pattern change effect.

[0059] The anti-counterfeiting element 1 provided by the present invention is provided with a concave-convex structure 18 on the anti-counterfeiting information layer 16. When the anti-counterfeiting information layer 16 emits light, the concave-convex structure 18 can cause the light emitted by the anti-counterfeiting information layer 16 to diffract, so that users can obtain different colors of luminous effects when observing from different observation angles. By replacing the traditional angular color-changing layer with the concave-convex structure 18, not only the preparation cost is reduced, but also the difficulty of plagiarism of the anti-counterfeiting element 1 is increased.

[0060] In the above embodiment, the shape of the concave-convex structure 18 includes one of a sine wave, a square wave, and a sawtooth shape.

[0061] In the above embodiment, if Figure 2 As shown, the anti-counterfeiting information layer 16 includes a light-emitting layer 162 and a receiving antenna layer 164. The light-emitting layer 162 is arranged on one side of the substrate layer 12. The light-emitting layer 162 can emit light when powered on to display the anti-counterfeiting information; the receiving antenna layer 164 is connected to the light-emitting layer 162. The receiving antenna layer 164 is used to receive radio wave signals to generate an induced current so that the light-emitting layer 162 is powered on 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.

[0062] In this embodiment, the anti-counterfeiting information layer 16 includes a luminescent layer 162 and a receiving antenna layer 164. The luminescent layer 162 is disposed on one side of the substrate layer 12, for example, on the side away from the anti-counterfeiting article. When energized, the luminescent layer 162 emits light and displays the anti-counterfeiting information. The receiving antenna layer 164 is connected to the luminescent layer 162 and is used to receive radio wave signals to generate an induced current, thereby energizing and emitting light in the luminescent layer 162. By providing the luminescent layer 162 and the receiving antenna layer 164, the principle of magnetoelectricity is utilized to generate an induced current within the receiving antenna layer 164, thereby energizing and emitting light in the luminescent layer 162, thereby improving the concealment of the anti-counterfeiting element 1.

[0063] In the above embodiment, under the irradiation of natural light, the concave-convex structure 18 can also cause the light reflected by the receiving antenna layer 164 to undergo diffraction.

[0064] In this embodiment, under natural light, the concave-convex structure 18 can also cause the light reflected by the receiving antenna layer 164 to diffract, which makes it more difficult to detect the receiving antenna layer 164 of the present application under normal circumstances, thereby improving the concealment of the anti-counterfeiting element 1.

[0065] In the above embodiment, the receiving antenna layer 164 includes a receiving antenna, the line width of the receiving antenna is greater than or equal to 400 μm and less than or equal to 600 μm; the line spacing of the receiving antenna is greater than or equal to 50 μm and less than or equal to 100 μm.

[0066] In this embodiment, since the concave-convex structure 18 can cause the light reflected by the receiving antenna layer 164 to diffract, the line width and line spacing of the receiving antenna can be controlled to achieve the best hiding effect. Without careful observation, it is difficult to find the receiving antenna of the present invention. The specific hiding effect diagram is as follows: Figure 3 and Figure 4 As shown, according to Figure 3 and Figure 4 It can be clearly seen from the effect diagram that there are some bright spots on the receiving antenna, and these bright spots are diffracted by the concave-convex structure 18. Figure 5 and Figure 6 Compared with the receiving antenna without diffraction phenomenon, the receiving antenna with diffraction phenomenon has a better hiding effect.

[0067] Furthermore, the receiving antenna may be Figure 5 The receiving antenna can be a standard grid shape as shown, or it can be a standard grid shape as shown. Figure 6 The flower-bud-shaped receiving antenna shown further has a line width of 500 μm, a line spacing of 100 μm, and 16 turns. Of course, according to different needs, the receiving antenna can be set to various other standard shapes or other irregular shapes. The line width, line spacing, and number of turns can also be adaptively adjusted according to different shapes. No unnecessary elaboration is given here.

[0068] In the above embodiment, the receiving antenna layer 164 includes a wireless charging receiving antenna, and the anti-counterfeiting element 1 also includes a wireless charging chip, which is connected to the wireless charging receiving antenna, and is used to transmit a low-frequency AC pre-signal to the wireless charging receiving antenna at the wireless charging signal transmitting end, and when the wireless charging receiving antenna receives the low-frequency AC pre-signal, it transmits a matching success signal to the wireless charging signal transmitting end, so that the wireless charging signal transmitting end can continue to transmit radio waves to the wireless charging receiving antenna after receiving the matching success signal, so that the light-emitting layer 162 continues to emit light to display anti-counterfeiting information.

[0069] In this embodiment, when the receiving antenna layer 164 is constructed as a wireless charging receiving antenna, the anti-counterfeiting element 1 also includes a wireless charging chip, which is connected to 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. After receiving the matching success signal fed back by the wireless charging chip, the wireless charging signal transmitting end can continuously transmit radio waves (usually at 100KHz to 205KHz) to the wireless charging receiving antenna, so that the light-emitting layer 162 continuously displays the anti-counterfeiting information. In this application, by providing a wireless charging chip, when the user is wirelessly charging on the mobile phone, the wireless charging chip can send a signal feedback to the mobile phone, so that the mobile phone can promptly sense the wireless charging receiving antenna. In this way, radio waves can be continuously transmitted to the wireless charging receiving antenna, so that the light-emitting layer 162 continuously displays the anti-counterfeiting information, thereby avoiding the problem that the mobile phone cannot detect the wireless charging receiving antenna and automatically shuts down the radio wave transmission function, resulting in the inability to continuously transmit radio waves to the wireless charging receiving antenna.

[0070] In the above embodiment, if Figure 2 As shown, the light-emitting layer 162 includes a first electrode layer 1622, a second electrode layer 1624 and a flexible display element 1626: the first electrode layer 1622 and the second electrode layer 1624 are both arranged on one side of the substrate layer 12; the flexible display element 1626 can emit light when powered on to display anti-counterfeiting information; the two ends of the flexible display element 1626 are respectively connected to the first electrode layer 1622 and the second electrode layer 1624; the two ends of the receiving antenna layer 164 are respectively connected to the first electrode layer 1622 and the second electrode layer 1624.

[0071] 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 can emit light when powered on to display anti-counterfeiting information. The two ends of the flexible display element 1626 are respectively connected to the first electrode layer 1622 and the second electrode layer 1624, and the two ends of the receiving antenna layer 164 are respectively connected to the first electrode layer 1622 and the second electrode layer 1624. This is equivalent to the first electrode layer 1622, the second electrode layer 1624, the flexible display element 1626 and the receiving antenna layer 164 forming a closed loop. When the receiving antenna layer 164 receives a radio wave signal and generates an induced current, an induced current flows in the closed loop, thereby causing the flexible display element 1626 to emit light and generate anti-counterfeiting information.

[0072] In the above embodiment, the receiving antenna layer 164 and the first electrode layer 1622 are an integrated structure, and the receiving antenna layer 164 and the second electrode layer 1624 are an integrated structure.

[0073] 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. This improves the conductive efficiency within the closed loop, simplifies the manufacturing process, and improves product manufacturing efficiency. Of course, the receiving antenna layer 164 and the first electrode layer 1622 can also be separate structures, and the receiving antenna layer 164 and the second electrode layer 1624 can also be separate structures.

[0074] 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.

[0075] 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. This enables the anti-counterfeiting element 1 of the present application to produce a variety of anti-counterfeiting information such as multiple colors, multiple images, and dynamic patterns when displaying anti-counterfeiting information.

[0076] In the above embodiment, the receiving antenna layer 164 includes an NFC receiving antenna, and the anti-counterfeiting element 1 also includes an NFC rectifier chip, which is connected to the NFC receiving antenna and is used 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 energized and emits light to display anti-counterfeiting information.

[0077] In this embodiment, when the receiving antenna layer 164 is set as an NFC (Near Field Communication) receiving antenna, the anti-counterfeiting element 1 also includes an NFC rectifier chip, which is connected to the NFC receiving antenna and is used to convert the high-frequency AC signal (usually at 13.56 MHz) received by the NFC receiving antenna into a DC signal. In this way, the flexible display element 1626 of the anti-counterfeiting element 1 of the present application can adopt an OLED light-emitting element, which solves the problem that when an OLED light-emitting element is used as the flexible display element 1626, the OLED light-emitting element cannot emit light under an AC signal, so that the anti-counterfeiting element 1 of the present application can generate a variety of anti-counterfeiting information such as multiple colors, multiple images and dynamic patterns when displaying anti-counterfeiting information.

[0078] In the above embodiment, the anti-counterfeiting element 1 also includes an interference layer 19, which is connected to the receiving antenna layer 164. A preset pattern is provided on the interference layer 19. The preset pattern is the same as or different from the pattern on the receiving antenna layer 164. The preset pattern is used to interfere with the pattern on the receiving antenna layer 164.

[0079] In this embodiment, the anti-counterfeiting element 1 also includes an interference layer 19, on which a preset pattern is arranged. The preset pattern is the same as or different from the pattern of the receiving antenna layer 164, so that the preset pattern can interfere with the receiving antenna pattern and enhance the concealment of the receiving antenna pattern.

[0080] For example, Figure 5 The grid-shaped receiving antenna layer 164 shown in FIG. 1 has a U-shaped interference layer 19 embedded in the receiving antenna coil. For example, Figure 6 As shown in the structural diagram, the flower-shaped structure diagram is divided into two parts. The bud part is the receiving antenna layer 164, which includes multiple receiving antennas, and the pedicel and sepal parts are the interference layer 19, that is, the receiving antenna layer 164 and the interference layer 19 together constitute a flower-shaped structure. In this way, if you don’t look carefully, you can only see a flower-shaped structure, which has a partial hiding effect on the receiving antenna layer 164, thereby improving the concealment. According to actual needs, the position and pattern of the interference layer 19 can also be set arbitrarily.

[0081] In the above 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.

[0082] In this embodiment, the shape of the receiving antenna layer 164 can be a standard geometric shape, such as a rectangle, square, diamond, triangle, etc., or it can be a non-standard special-shaped antenna, such as a spiral, etc., or it can be a letter shape, such as T-shape, V-shape, S-shape, M-shape, etc.

[0083] In the above embodiment, when the concavo-convex structure 18 is in the shape of a square waveform, the concavo-convex structure 18 includes convex portions and concave portions, the width of the convex portions is greater than or equal to 0.1 μm and less than or equal to 10 μm, and the width of the concave portions is greater than or equal to 0.1 μm and less than or equal to 10 μm.

[0084] In the above embodiment, when the shape of the concave-convex structure 18 is a sine wave or a sawtooth shape, the distance between two adjacent vertices on the concave-convex structure 18 is greater than or equal to 0.2 μm and less than or equal to 20 μm, where the vertex is the point on the concave-convex structure 18 farthest from the substrate layer 12.

[0085] In this embodiment, limiting the specific size of the concave-convex structure 18 can ensure the diffraction effect of light.

[0086] In the above embodiment, the anti-counterfeiting information layer 16 is disposed at intervals on the surface of the substrate layer 12 .

[0087] In this embodiment, the anti-counterfeiting information layer 16 is arranged at intervals on the surface of the substrate layer 12, and the concave-convex structure 18 is arranged on the surface of the anti-counterfeiting information layer 16 away from the substrate layer 12. In this way, the anti-counterfeiting information can present a luminous effect of different colors and is not easy to be discovered. In this way, during the actual detection process, for example, it can be identified with the help of a magnifying glass and will not be easily noticed by the opponent.

[0088] In the above embodiment, the anti-counterfeiting element 1 further includes an adhesive layer 14 disposed between the substrate layer 12 and the anti-counterfeiting information layer 16 .

[0089] In this embodiment, the anti-counterfeiting element 1 further includes an adhesive layer 14 disposed between the substrate layer 12 and the anti-counterfeiting information layer 16 , for fixing the anti-counterfeiting information layer 16 on the surface of the substrate layer 12 .

[0090] In the above embodiment, the thickness of the receiving antenna layer 164 is greater than 50 nm.

[0091] In this embodiment, the thickness of the receiving antenna layer 164 is greater than 50 nm, further greater than 100 nm, and further greater than 200 nm. This can ensure the intensity of the current in the closed loop, and thus ensure the luminous intensity of the flexible display element 1626, avoiding the problem of low luminous intensity leading to the failure to detect anti-counterfeiting information in the subsequent detection process.

[0092] In the above embodiment, the square resistance of the receiving antenna layer 164 is less than 0.5Ω.

[0093] In this embodiment, the square resistance of the receiving antenna layer 164 is less than 0.5Ω, further less than 0.1Ω, and further less than 0.05Ω. This can prevent the square resistance of the receiving antenna layer 164 from being too large, affecting the intensity of the current in the closed loop, and ensure the luminous intensity of the flexible display element 1626.

[0094] 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 light reflectivity of the metal or the metal compound is greater than or equal to 80%.

[0095] In this embodiment, the material of the receiving antenna layer 164 is composed of a metal or metal compound with conductive properties, and the reflectivity of the metal or metal compound is greater than or equal to 80%. For example, the material of the receiving antenna layer 164 can be composed of gold, silver, copper, magnesium, aluminum, lithium or other conductive materials such as metals, metal compounds with bright mirror reflection effects. Furthermore, the receiving antenna layer 164 can be a single layer or multiple layers.

[0096] In the above embodiment, the metal material of the first electrode layer 1622 is the same as or different from the metal material of the receiving antenna layer 164 , and the metal material of the second electrode layer 1624 is the same as or different from the metal material of the receiving antenna layer 164 .

[0097] In this embodiment, the metal material of the first electrode layer 1622 is the same as the metal material of the receiving antenna layer 164. This improves manufacturing efficiency. The same material also ensures electrical conductivity and increases luminous intensity. Of course, depending on different needs, the metal material of the first electrode layer 1622 and the metal material of the receiving antenna layer 164 can also be different. The metal material of the second electrode layer 1624 and the metal material of the receiving antenna layer 164 can also be the same or different as needed.

[0098] Another embodiment of the present invention provides a light-variable anti-counterfeiting element 1, comprising at least a substrate layer 12, an adhesive layer 14, and a metal layer. The substrate layer 12 is a transparent substrate, the adhesive layer 14 is a transparent adhesive layer 14, and the transparent adhesive layer 14 is disposed above the transparent substrate. The metal layer is disposed above the transparent adhesive layer 14. The metal layer is composed of three metal regions and a hollow region. At least a portion of the first metal region of the metal layer forms an antenna pattern, i.e., a receiving antenna layer 164. The upper surface of the transparent adhesive layer 14 has a concave-convex structure 18, and the upper surface of the receiving antenna layer 164 has a concave-convex structure 18 that changes in the same manner as the transparent adhesive layer 14. The second metal region of the metal layer forms an electrode layer for conducting electricity for a flexible display element 1626. One electrode layer is connected to one end of the receiving antenna layer 164 to form an integrated electrode-antenna structure. The other electrode layer is connected to the other end of the receiving antenna layer 164. The flexible display element 1626 is connected to each of the two electrode layers.

[0099] In the above embodiment, the receiving antenna layer 164 also includes at least an NFC rectifier chip. When the antenna is an NFC receiving antenna (usually at 13.56 MHz), Z ), the function of the NFC rectifier chip is that when the NFC signal transmitting end transmits a high-frequency AC signal to the NFC receiving antenna, the NFC rectifier chip converts the high-frequency AC signal received by the NFC receiving antenna into a DC signal, and provides DC power to the flexible display element 1626, so that the flexible display element 1626 emits light or displays information.

[0100] In the above embodiment, the receiving antenna layer 164 also includes at least a wireless charging chip. Z to 205KH Z), the function of the wireless charging chip is: the wireless charging signal transmitter transmits a low-frequency AC pre-signal to the wireless charging receiving antenna, the wireless charging chip feeds back the low-frequency AC pre-signal, and the transmitter continues to transmit radio waves after receiving the feedback. After the wireless charging receiving antenna receives the continuous radio wave signal, it continuously supplies power to the flexible display element 1626, causing the flexible display element 1626 to emit light or display information.

[0101] In the above embodiment, the anti-counterfeiting element 1 also includes an interference layer 19 formed by the third metal area of ​​the metal layer with a common pattern similar to the receiving antenna layer 164, which is used to interfere with the receiving antenna layer 164 and enhance the concealment of the receiving antenna layer 164.

[0102] In the above embodiment, the receiving antenna layer 164 formed by the metal area of ​​the metal layer includes an NFC antenna, a wireless charging antenna, an RFID antenna (Radio-Frequenvy-Identification, also known as radio frequency identification technology), and other radio wave receiving antennas that can be identified by radio wave transmitting devices.

[0103] In the above embodiment, the receiving antenna layer 164 of the metal layer is a helical antenna, a T-shaped antenna, a V-shaped antenna, a diamond-shaped antenna, or other special-shaped antennas.

[0104] In the above embodiment, the flexible display element 1626 includes a flexible organic electroluminescent element, a flexible inorganic electroluminescent element, a flexible electrochromic element, etc.

[0105] In the above embodiment, the concavo-convex structure 18 on the upper surface of the transparent adhesive layer 14 has a shape including a sine wave, a square wave, a sawtooth shape, and other concavo-convex shapes that can form diffraction light-varying features.

[0106] In the above embodiment, the concave-convex structure 18 on the upper surface of the first metal region of the metal layer includes a sinusoidal waveform, a square waveform, a sawtooth shape, and other concave-convex shapes that can form diffraction light-varying features.

[0107] 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 concave-convex structure 18 is in a square-wave shape, the concave-convex structure 18 includes convex portions and concave portions, and the width of the convex portions is greater than or equal to 0.1 μm and less than or equal to 10 μm. Preferably, it is between 0.5 μm and 5 μm, and more preferably, it is between 0.8 μm and 1.5 μm. The line spacing is between 0.1 μm and 10 μm. That is, when the concave-convex structure 18 is in a square-wave shape, the concave-convex structure 18 includes convex portions and concave portions, and the width of the concave portions is greater than or equal to 0.1 μm and less than or equal to 10 μm. Preferably, it is between 0.5 μm and 5 μm, and more preferably, it is between 0.8 μm and 1.5 μm. The groove depth is between 0.1 μm and 10 μm, preferably, between 0.5 μm and 5 μm, and more preferably, between 0.8 μm and 1.5 μm. The depth of the concavo-convex structure 18 is between 0.1 μm and 10 μm, preferably between 0.5 μm and 5 μm, and more preferably between 0.8 μm and 1.5 μm.

[0108] In the above embodiment, the thickness of the metal layer is greater than 50 nm, preferably greater than 100 nm, and more preferably greater than 200 nm.

[0109] 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.

[0110] In the above embodiments, the diffraction light-changing feature includes a color change from one color to another color as the observation angle changes, or a rainbow color effect with multiple color changes. The diffraction light-changing feature also includes depth of field and dynamic pattern change effects.

[0111] In the above embodiment, the metal layer presents a metallic color when viewed from the upper surface, and presents a metallic color that is the same as or different from that of the upper surface when viewed from the lower surface.

[0112] In the above embodiment, the material of the receiving antenna layer 164 is composed of a metal or metal compound with conductive properties, and the reflectivity of the metal or metal compound is greater than or equal to 80%. For example, the material of the receiving antenna layer 164 can be composed of gold, silver, copper, magnesium, aluminum, lithium or other conductive materials such as metals, metal compounds with bright mirror reflection effects. Furthermore, the receiving antenna layer 164 can be a single layer or multiple layers.

[0113] In the above embodiment, the metal material of the first electrode layer 1622 is the same as the metal material of the receiving antenna layer 164. This improves manufacturing efficiency. The same material also ensures electrical conductivity and increases luminous intensity. Of course, depending on different needs, the metal material of the first electrode layer 1622 and the metal material of the receiving antenna layer 164 can also be different. The metal material of the second electrode layer 1624 and the metal material of the receiving antenna layer 164 can also be the same or different as needed.

[0114] In the above embodiment, both the base material layer 12 and the adhesive layer 14 have high transparency. The transparency of the base material layer 12 is greater than or equal to 80%, and the transparency of the adhesive layer 14 is greater than or equal to 80%.

[0115] In the embodiments according to the present invention, the terms "first", "second", and "third" are used only for descriptive purposes and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. Terms such as "installed", "connected", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments according to the present invention can be understood according to specific circumstances.

[0116] In addition, although adopting specific order to describe each operation, this should be understood as requiring such operation to be carried out in the specific order or in sequential order, or requiring that all illustrated operations should be carried out to obtain desired result.Under certain environment, multitasking and parallel processing may be advantageous.Similarly, although comprising some specific implementation details in the above discussion, these should not be construed as limiting the scope of the present invention.Some features described in the context of independent embodiment can also be implemented in a single implementation in combination.On the contrary, the various features described in the context of independent implementation also can be implemented in a plurality of implementations individually or in the mode of any suitable subcombination.

[0117] Although the subject matter has been described in the language of specific structural features and / or methodological logical actions, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. On the contrary, the specific features and actions described above are merely example forms of implementing the claims.

[0118] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. It will be apparent to those skilled in the art that various modifications and variations may be made to the embodiments of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention shall be included within the scope of protection of the embodiments of the present invention.

Claims

1. An anti-counterfeiting element, characterized in that: include: substrate layer; an anti-counterfeiting information layer, disposed on one side of the substrate layer, and capable of emitting light upon receiving a radio wave signal to display anti-counterfeiting information; The surface of the anti-counterfeiting information layer facing away from the substrate layer is provided with a concave-convex structure, and the concave-convex structure can cause the light emitted by the anti-counterfeiting information layer to diffract when the anti-counterfeiting information layer emits light; The diffraction phenomenon includes that when the anti-counterfeiting information is observed from different observation angles, the anti-counterfeiting information layer can present a luminous effect of different colors, or a luminous effect of multiple colors alternating, or a dynamic pattern changing effect; The anti-counterfeiting information layer includes: a light-emitting layer, disposed on one side of the substrate layer, capable of emitting light when energized to display the anti-counterfeiting information; a receiving antenna layer connected to the light-emitting layer, the receiving antenna layer being used to receive radio wave signals to generate an induced current to enable the light-emitting layer to be energized and emit light; The surfaces of the light-emitting layer and the receiving antenna layer facing away from the substrate layer are both provided with the concave-convex structure; The receiving antenna layer includes a wireless charging receiving antenna, and the anti-counterfeiting element further includes: a wireless charging chip connected to the wireless charging receiving antenna, and configured to transmit a low-frequency AC pre-signal from a wireless charging signal transmitting end to the wireless charging receiving antenna, 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 continue to transmit radio waves to the wireless charging receiving antenna after receiving the matching success signal, so that the light-emitting layer is continuously powered on and emits light, thereby displaying the anti-counterfeiting information; The receiving antenna layer is made of a conductive metal or metal compound, and the light reflectivity of the metal or metal compound is greater than or equal to 80%.

2. The anti-counterfeiting element according to claim 1, characterized in that: The concave-convex structure has a shape of a sine wave, a square wave, or a sawtooth shape.

3. The anti-counterfeiting element according to claim 1, characterized in that: Under natural light, the concave-convex structure can also cause the light reflected by the receiving antenna layer to diffract.

4. The anti-counterfeiting element according to claim 3, characterized in that: The receiving antenna layer includes a receiving antenna, The line width of the receiving antenna is greater than or equal to 400 μm and less than or equal to 600 μm; The line spacing of the receiving antenna is greater than or equal to 50 μm and less than or equal to 100 μm.

5. The anti-counterfeiting element according to claim 1, characterized in that: The light-emitting layer includes: The first electrode layer and the second electrode layer are both arranged on one side of the substrate layer; a flexible display element capable of emitting light when powered on to display the anti-counterfeiting information; Two ends of the flexible display element are connected to the first electrode layer and the second electrode layer respectively; Two ends of the receiving antenna layer are connected to the first electrode layer and the second electrode layer respectively.

6. The anti-counterfeiting element according to claim 5, characterized in that: The receiving antenna layer and the first electrode layer are an integrated structure; and / or The receiving antenna layer and the second electrode layer are an integrated structure; and / or The flexible display element includes one of a flexible organic electroluminescent element, a flexible inorganic electroluminescent element, and a flexible electrochromic element.

7. The anti-counterfeiting element according to claim 1, characterized in that: The receiving antenna layer includes an NFC receiving antenna, and the anti-counterfeiting element further includes: An NFC rectifier chip is connected to the NFC receiving antenna and is used to convert the high-frequency AC signal received by the NFC receiving antenna into a DC signal, so as to energize the light-emitting layer and emit light to display the anti-counterfeiting information.

8. The anti-counterfeiting element according to claim 1, characterized in that: Also includes: An interference layer is connected to the receiving antenna layer. A preset pattern is provided on the interference layer. The preset pattern is the same as or different from the pattern on the receiving antenna layer. The preset pattern is used to interfere with the pattern on the receiving antenna layer.

9. The anti-counterfeiting element according to claim 1, characterized in that: When the shape of the concavo-convex structure is a square waveform, the concavo-convex structure includes a convex portion and a concave portion, the width of the convex portion is greater than or equal to 0.1 μm and less than or equal to 10 μm, and the width of the concave portion is greater than or equal to 0.1 μm and less than or equal to 10 μm; and / or When the shape of the concavo-convex structure is a sine wave or a sawtooth shape, the distance between two adjacent vertices on the concavo-convex structure is greater than or equal to 0.2 μm and less than or equal to 20 μm, wherein the vertex is the point on the concavo-convex structure farthest from the substrate layer; and / or The anti-counterfeiting information layer is arranged at intervals on the surface of the substrate layer.

10. The anti-counterfeiting element according to any one of claims 1 to 9, characterized in that Also includes: The adhesive layer is arranged between the substrate layer and the anti-counterfeiting information layer.

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