A digital currency hardware wallet and a method of manufacturing the same

Abstract

The application provides a digital currency hardware wallet and a preparation method thereof. The digital currency hardware wallet comprises a label layer, the label layer comprises a mesh light-emitting layer and a plurality of grids surrounded by the light-emitting layer, and adjacent grids have different shapes and / or areas. When a digital currency transaction is performed, the light-emitting layer generates specific mesh light, a transaction terminal receives the light and identifies the mesh pattern, and the digital currency transaction is allowed only when the mesh pattern matches the mesh pattern stored in the transaction terminal, so that the digital currency transaction has certain security. Since the light-emitting layer has a plurality of grids, and adjacent grids have different shapes and / or areas, it is difficult to prepare a completely identical light-emitting layer, so that the label layer is difficult to copy, the digital currency hardware wallet is difficult to counterfeit, and the security of the digital currency transaction system is improved.

Description

Technical Field

[0001] This invention relates to the field of electronic tag technology, specifically to a digital currency hardware wallet and its manufacturing method. Background Technology

[0002] Digital currency is a type of electronic money based on cryptography. Central bank digital currencies have been piloted in some cities, and related industries have significant development prospects. As the blockchain industry matures, the security of the digital currency market has become an urgent issue that needs to be addressed. Countless incidents of lost digital assets demonstrate that even the most secure technologies are not 100% vulnerability-free; any contact with the internet creates opportunities for hackers. Digital currency hardware wallets, by storing the private keys of digital assets separately in an encrypted chip and isolating them from the internet, improve the security of digital currencies to a certain extent.

[0003] However, current digital currency hardware wallets can be counterfeited, which reduces the security of digital currency trading systems. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that existing digital currency hardware wallets can be counterfeited, thereby providing a digital currency hardware wallet and its manufacturing method.

[0005] The present invention provides a digital currency hardware wallet, including a label layer, the label layer including a mesh-like light-emitting layer and a plurality of grids surrounded by the light-emitting layer, the adjacent grids having different shapes and / or areas.

[0006] Optionally, some of the meshes form a mesh unit, which includes a central mesh and a plurality of edge meshes. The plurality of edge meshes are distributed around the central mesh and are adjacent to the central mesh, and adjacent edge meshes are adjacent to each other. The central mesh and each edge mesh in the mesh unit have different shapes; or, the central mesh and each edge mesh in the mesh unit have different areas; or, the central mesh and each edge mesh in the mesh unit have different shapes and different areas.

[0007] Optionally, each grid in the label layer has a different shape; or, each grid in the label layer has a different area; or, each grid in the label layer has a different shape and each grid in the label layer has a different area.

[0008] Optionally, the digital currency hardware wallet further includes: a backlight structure, wherein the label layer is located on the light-emitting side of the backlight structure, and the backlight structure is adapted to excite the light-emitting layer in the label layer to emit light.

[0009] Optionally, the digital currency hardware wallet includes a display area adapted to display an interactive interface; the backlight structure and the label layer are located in the display area, the backlight structure is a display structure, and the material of the light-emitting layer is an infrared light-emitting material.

[0010] Optionally, the digital currency hardware wallet includes a non-display area, where the backlight structure and the label layer are located.

[0011] Optionally, the label layer further includes a patterned insulating layer having mesh-like slits; the light-emitting layer is located within the slits.

[0012] Optionally, the label layer further includes a first substrate, which is located on the side surface of the light-emitting layer opposite to the backlight structure.

[0013] Optionally, the backlight structure includes a first electrode layer, a first display light-emitting layer, and a second electrode layer stacked sequentially, with the label layer located on the side of the second electrode layer facing away from the first display light-emitting layer.

[0014] Optionally, the backlight structure further includes a second substrate, the second substrate being located on the side surface of the first electrode layer opposite to the first display light-emitting layer; or, the backlight structure further includes a second substrate and a third substrate, the second substrate being located on the side surface of the first electrode layer opposite to the first display light-emitting layer, and the third substrate being located between the second electrode layer and the label layer.

[0015] Optionally, the digital currency hardware wallet includes a non-display area, and the label layer is located in the non-display area; the label layer further includes: a graphical insulating layer having mesh-like gaps, the light-emitting layer being located in the gaps; a third electrode layer and a fourth electrode layer disposed opposite to each other, the light-emitting layer being located between the third electrode layer and the fourth electrode layer.

[0016] Optionally, the insulating layer may be made of acrylic resin or negative photoresist.

[0017] Optionally, the thickness of the insulating layer is 1μm-100μm.

[0018] Optionally, the material of the light-emitting layer includes near-infrared light-emitting materials, such as quantum dot near-infrared light-emitting materials, organic near-infrared light-emitting materials, rare earth-doped near-infrared light-emitting materials, or near-infrared carbon nanomaterials.

[0019] Optionally, the quantum dot near-infrared luminescent material includes a CdTe / CdSe core-shell structure; the organic near-infrared luminescent material includes indocyanine green; the rare earth-doped near-infrared luminescent material includes Er-doped NaYF4; and the near-infrared carbon nanomaterial includes single-walled carbon nanotubes.

[0020] The present invention also provides a method for preparing a digital currency hardware wallet, comprising: forming a label layer, the label layer comprising a mesh-like light-emitting layer and a plurality of grids surrounded by the light-emitting layer, wherein adjacent grids have different shapes and / or areas.

[0021] Optionally, the method for manufacturing the digital currency hardware wallet further includes: forming a backlight structure; and disposing the label layer on the surface of the light-emitting side of the backlight structure, wherein the backlight structure is adapted to excite the light-emitting layer in the label layer to emit light.

[0022] Optionally, the step of forming the label layer includes: providing a first substrate; coating an insulating film on one side surface of the first substrate; curing the insulating film to form a patterned insulating layer having a mesh-like gap; forming a light-emitting layer in the gap; and after the label layer is disposed on the light-emitting side surface of the backlight structure, the light-emitting layer is located between the backlight structure and the first substrate.

[0023] Optionally, the method for manufacturing the digital currency hardware wallet further includes: after forming a light-emitting layer in the gap, removing the insulating layer.

[0024] Optionally, the process for forming the light-emitting layer in the gap is a scraping process.

[0025] Optionally, the insulating film is a negative photoresist; the thickness of the insulating film is 1μm-100μm; the parameters for curing the insulating film include: curing temperature of 120℃-300℃ and curing time of 30min-60min.

[0026] Optionally, the digital currency hardware wallet includes a non-display area; the step of forming the label layer further includes: forming a third electrode layer in the non-display area; forming a fourth electrode layer in the non-display area, the fourth electrode layer and the third electrode layer being disposed opposite to each other; forming a light-emitting layer after forming the third electrode layer and before forming the fourth electrode layer; the step of forming the light-emitting layer includes: coating an insulating film on the third electrode layer; curing the insulating film to form a patterned insulating layer having mesh-like gaps; and forming a light-emitting layer in the gaps.

[0027] Optionally, the material of the insulating film includes acrylic resin; the thickness of the insulating film is 1μm-100μm; the parameters for curing the insulating film include: curing temperature of 120℃-300℃ and curing time of 3min-15min.

[0028] The technical solution of this invention has the following advantages:

[0029] 1. The digital currency hardware wallet provided by this invention includes a label layer, which comprises a mesh-like light-emitting layer and a plurality of grids enclosed by the light-emitting layer, with adjacent grids having different shapes and / or areas. During digital currency transactions, the light-emitting layer generates a specific mesh-like light. The transaction terminal receives the light and identifies the mesh pattern. A digital currency transaction is only allowed when the mesh pattern matches a mesh pattern stored in the transaction terminal, thus providing a certain level of security for the digital currency transaction. Because the light-emitting layer has a plurality of grids, and adjacent grids have different shapes and / or areas, it is difficult to manufacture an identical light-emitting layer, making the label layer difficult to replicate. This makes the digital currency hardware wallet difficult to counterfeit, thereby improving the security of the digital currency transaction system.

[0030] 2. The digital currency hardware wallet provided by this invention includes a backlight structure that is a display structure, a label layer located on the light-emitting side of the backlight structure, and an infrared emitting layer made of infrared emitting material. The backlight structure is located in the display area and is also a display structure, while the display area is adapted to display an interactive interface; that is, the backlight structure is adapted to display an interactive interface. During digital currency transactions, the light emitted by the backlight structure excites the label layer to generate a specific mesh-like infrared light. Therefore, the display structure can excite the label layer to emit light while displaying the interactive interface, eliminating the need for an additional structure to excite the label layer, thus simplifying the structure and manufacturing process of the digital currency hardware wallet. Furthermore, since the infrared light generated by the label layer is invisible, it does not affect the human eye's ability to obtain information from the interactive interface, facilitating digital currency transactions. Moreover, the specific mesh-like pattern of the emitting layer is difficult to obtain from the infrared light generated by the label layer, thereby increasing the difficulty of counterfeiting.

[0031] 3. The digital currency hardware wallet provided by the present invention has a backlight structure and a label layer located in a non-display area, which are independent of the display structure located in the display area. The material selection of the light-emitting layer in the label layer is not limited by the light emission wavelength of the display structure, but only needs to ensure that the light-emitting layer can be excited by the backlight structure to emit light. This increases the flexibility of the selection of the light-emitting layer material. At the same time, the display effect of the display structure is not affected by the label layer, thus ensuring the display effect of the display structure.

[0032] 4. The digital currency hardware wallet provided by this invention includes a backlight structure that is a display structure. The tag layer is located on the light-emitting side of the backlight structure. The tag layer includes a mesh-like light-emitting layer and a first substrate, with the first substrate located on the side of the light-emitting layer facing away from the backlight structure. By setting the first substrate, the light-emitting layer is positioned between the first substrate and the backlight structure, making it difficult for the light-emitting layer to directly contact substances such as oxygen and moisture in the external environment. This avoids chemical reactions between the light-emitting layer and these substances, thereby increasing the lifespan of the light-emitting layer.

[0033] 5. The digital currency hardware wallet provided by this invention includes a tag layer located in the non-display area. The tag layer comprises a light-emitting layer, a patterned insulating layer, and opposing third and fourth electrode layers. The insulating layer has a mesh-like slit, and the light-emitting layer is located within the slit and between the third and fourth electrode layers. During digital currency transactions, a voltage is applied to the third and fourth electrode layers, causing the light-emitting layer to generate a specific mesh-like light. Because the tag layer is independent of the display structure located in the display area, the display effect of the display structure is not affected by the tag layer, ensuring the display effect of the display structure. Simultaneously, the tag layer has a simple structure, and the selection of the light-emitting layer material offers greater flexibility.

[0034] 6. The method for preparing a digital currency hardware wallet provided by the present invention includes the step of forming a label layer, wherein the label layer includes a mesh-like light-emitting layer and a plurality of grids enclosed by the light-emitting layer, and adjacent grids have different shapes and / or areas. During digital currency transactions, the light-emitting layer generates specific mesh-like light. The transaction terminal receives the light and identifies the mesh pattern. A digital currency transaction is only allowed when the mesh pattern matches a mesh pattern stored in the transaction terminal, thus providing a certain level of security for digital currency transactions. Because the light-emitting layer has a plurality of grids, and adjacent grids have different shapes and / or areas, it is difficult to prepare an identical light-emitting layer, making the label layer difficult to replicate. This makes the digital currency hardware wallet difficult to counterfeit, thereby improving the security of the digital currency transaction system. Attached Figure Description

[0035] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0036] Figure 1 This is a top view of the label layer in the embodiment;

[0037] Figure 2 This is a schematic diagram of the backlight structure and label layer in Example 1;

[0038] Figure 3 This is a schematic diagram of another structure of the backlight structure and label layer in Example 1;

[0039] Figure 4 This is a top view of the digital currency hardware wallet in Example 2;

[0040] Figure 5 This is a top view of the digital currency hardware wallet in Example 3;

[0041] Figure 6 for Figure 5 A schematic diagram of the structure of the central display area. Detailed Implementation

[0042] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0045] Example 1

[0046] See Figure 1 This embodiment provides a digital currency hardware wallet, including a tag layer 1. The tag layer 1 includes a mesh-like light-emitting layer 11 and a plurality of grids 12 formed by the light-emitting layer 11. Adjacent grids 12 have different shapes and / or areas.

[0047] When the aforementioned digital currency hardware wallet conducts digital currency transactions, the light-emitting layer 11 generates a specific mesh-like light. The transaction terminal receives the light and identifies the mesh pattern. Only when the mesh pattern matches the mesh pattern stored in the transaction terminal is the digital currency transaction allowed, thus providing a certain level of security for the digital currency transaction. Since the light-emitting layer 11 has several grids 12, and adjacent grids 12 have different shapes and / or areas, it is difficult to manufacture an identical light-emitting layer 11, making the tag layer 1 difficult to replicate. This makes the digital currency hardware wallet difficult to counterfeit, thereby improving the security of the digital currency transaction system.

[0048] In one embodiment, some of the grids 12 form a grid unit, the grid unit including a central grid and a plurality of edge grids, the plurality of edge grids being distributed around the central grid and adjacent to the central grid, and adjacent edge grids being adjacent to each other; the central grid and each edge grid in the grid unit have different shapes; or, the central grid and each edge grid in the grid unit have different areas; or, the central grid and each edge grid in the grid unit have different shapes and different areas.

[0049] In another embodiment, each grid 12 of the label layer 1 has a different shape; or, each grid 12 of the label layer 1 has a different area; or, each grid 12 of the label layer 1 has a different shape and each grid 12 of the label layer 1 has a different area.

[0050] Furthermore, the digital currency hardware wallet includes a display area and a non-display area located on the side of the display area, the display area being adapted to display an interactive interface.

[0051] In this embodiment, the digital currency hardware wallet further includes a backlight structure 2 located in the display area. The backlight structure 2 is a display structure, and the label layer 1 is located on the light-emitting side surface of the backlight structure 2. The material of the light-emitting layer 11 is an infrared luminescent material. The backlight structure is located in the display area and is a display structure, while the display area is suitable for displaying an interactive interface; that is, the backlight structure is suitable for displaying an interactive interface. During digital currency transactions, the light emitted by the backlight structure excites the label layer to generate a specific mesh-like infrared light. Therefore, the display structure can excite the label layer to emit light while displaying the interactive interface, thus eliminating the need for an additional structure to excite the label layer, simplifying the structure of the digital currency hardware wallet and the manufacturing process. Furthermore, since the infrared light generated by the label layer is invisible light, it does not affect the human eye's ability to obtain information from the interactive interface, facilitating digital currency transactions. Moreover, it is difficult to obtain the specific mesh pattern of the light-emitting layer from the infrared light generated by the label layer, thereby increasing the difficulty of counterfeiting.

[0052] Furthermore, the material of the luminescent layer 11 can be a near-infrared luminescent material, including quantum dot near-infrared luminescent materials, organic near-infrared luminescent materials, rare earth-doped near-infrared luminescent materials, or near-infrared carbon nanomaterials. Specifically, the quantum dot near-infrared luminescent material can be a CdTe / CdSe core-shell structure; the organic near-infrared luminescent material can be indocyanine green; the rare earth-doped near-infrared luminescent material can be Er-doped NaYF4; and the near-infrared carbon nanomaterial can be single-walled carbon nanotubes.

[0053] It should be understood that the material of the light-emitting layer 11 includes, but is not limited to, the materials described above. The material of the light-emitting layer 11 is selected according to the wavelength of the light generated by the backlight structure 2 to ensure that the label layer 1 can be excited by the light emitted by the backlight structure 2 to emit infrared light.

[0054] like Figure 2 - Figure 3 As shown, in this embodiment, the label layer 1 further includes a first substrate 13, which is located on the side surface of the light-emitting layer 11 facing away from the backlight structure 2. By setting the first substrate 13, the light-emitting layer 11 is disposed between the first substrate 13 and the backlight structure 2, making it difficult for the light-emitting layer 11 to directly contact with substances such as oxygen and moisture in the external environment. This avoids chemical reactions between the light-emitting layer 11 and substances such as oxygen and moisture in the external environment, thereby increasing the service life of the light-emitting layer 11.

[0055] As an optional implementation method, such as Figure 2As shown, the backlight structure 2 includes a second substrate 21, a first electrode layer 22, a first display light-emitting layer 23, and a second electrode layer 24 stacked sequentially. The label layer 1 is located on the side of the second electrode layer 24 facing away from the first display light-emitting layer 23. At this time, the first electrode layer 22, the first display light-emitting layer 23, the second electrode layer 24, and the light-emitting layer 11 are located between the first substrate 13 and the second substrate 21. The first substrate 13 acts as a packaging sheet to prevent the first electrode layer 22, the first display light-emitting layer 23, the second electrode layer 24, and the light-emitting layer 11 from reacting chemically with substances such as oxygen and moisture in the external environment, thereby increasing the light emission time of the light-emitting layer 11. At the same time, the light emitted by the backlight structure 2 can directly irradiate the light-emitting layer 11 through the second electrode layer 24, reducing the energy loss of the light emitted by the backlight structure 2 during transmission, which is beneficial to increasing the light emission intensity of the light-emitting layer 11, and the backlight structure 2 is thinner and lighter.

[0056] As another alternative implementation method, such as Figure 3 As shown, the backlight structure 2' includes a second substrate 21', a first electrode layer 22', a first display light-emitting layer 23', a second electrode layer 24', and a third substrate 25 stacked sequentially. The third substrate is located between the second electrode layer and the label layer. Light emitted by the backlight structure 2' is transmitted sequentially through the second electrode layer 24' and the third substrate 25 to illuminate the light-emitting layer 11. The third substrate 25 serves as an encapsulation sheet for the backlight structure 2' to prevent the first electrode layer 22', the first display light-emitting layer 23', and the second electrode layer 24' from reacting chemically with substances such as oxygen and moisture in the external environment, thereby increasing the lifespan of the backlight structure 2'. The dual encapsulation sheet structure of the first substrate 13' and the third substrate 25 helps to improve the light-emitting duration of the light-emitting layer 11. The third substrate 25 can be glass or an encapsulation film.

[0057] Furthermore, the backlight structure can be an organic light-emitting diode (OLED), a light-emitting diode (LED), or a liquid crystal display (LCD).

[0058] In this embodiment, the digital currency hardware wallet further includes a first power supply module (not shown in the figure), which is electrically connected to the first electrode layer 22 and the second electrode layer 24 to provide power to the backlight structure 2. The first power supply module can be an energy storage battery.

[0059] In this embodiment, the transaction terminal includes: a signal receiving module for receiving light with a specific mesh pattern generated by the tag layer 1; a storage module for pre-storing a specific pattern of light generated by the tag layer 1; and an identification and matching module electrically connected to both the signal receiving module and the storage module. During a cryptocurrency transaction, the signal receiving module receives the light with the specific mesh pattern generated by the tag layer 1 and transmits the mesh pattern to the identification and matching module. The identification and matching module retrieves pattern information from the storage module and performs identification and matching between the mesh pattern and the pattern information. Only when the mesh pattern matches the pattern information is a cryptocurrency transaction permitted.

[0060] Furthermore, the signal receiving module adjusts according to the wavelength of the light emitted by the tag layer 1.

[0061] This embodiment also provides a method for preparing a digital currency hardware wallet, including: forming a label layer 1, wherein the label layer 1 includes a mesh-like light-emitting layer 11 and a plurality of grids 12 surrounded by the light-emitting layer 11, and adjacent grids 12 have different shapes and / or areas.

[0062] In this embodiment, the method for manufacturing the digital currency hardware wallet further includes: forming a backlight structure 2; and disposing the tag layer 1 on the light-emitting side of the backlight structure 2, wherein the backlight structure 2 is adapted to excite the light-emitting layer 11 in the tag layer 1 to emit light. Specifically, the backlight structure 2 is formed in the display area of ​​the digital currency hardware wallet.

[0063] The following provides a clear and complete description of the method for preparing the digital currency hardware wallet provided in this embodiment.

[0064] The steps for forming the label layer 1 include: providing a first substrate 13; coating an insulating film on one side surface of the first substrate 13; curing the insulating film to form a patterned insulating layer with mesh-like gaps; forming a light-emitting layer 11 in the gaps; and removing the insulating layer after forming the light-emitting layer 11 in the gaps. Removing the insulating layer helps improve the display effect of the backlight structure 2 and avoids the adverse effects of the insulating layer on the display results of the backlight structure 2.

[0065] It should be understood that the gaps in the insulating layer are generated during the curing process of the insulating film, which is related to the material of the insulating layer and the curing parameters. Specifically, the insulating film is a negative photoresist; for example, the negative photoresist can be SU-8 photoresist. The curing parameters for the insulating film include: a curing temperature of 120℃-300℃ and a curing time of 30min-60min. The thickness of the insulating film is 1μm-100μm. The method for removing the insulating film is exposure and development.

[0066] Furthermore, the process for forming the light-emitting layer 11 in the gap is a scraping coating process. By using the scraping coating process, the surface of the insulating layer facing away from the first substrate 13 is prevented from being coated with infrared light-emitting material, thereby enabling the insulating layer to be removed by exposure and development.

[0067] The steps for forming the backlight structure 2 include: providing a second substrate 21; sequentially forming a first electrode layer 22, a first display light-emitting layer 23, and a second electrode layer 24 on one side surface of the second substrate 21, wherein the first electrode layer 22, the first display light-emitting layer 23, and the second electrode layer 24 are stacked sequentially. Optionally, after the second electrode layer 24 is formed, the method further includes: providing a third substrate 25; coating an encapsulating adhesive on the edge of the third substrate 25; aligning the third substrate 25 with the second substrate 21 so that the encapsulating adhesive is located between the third substrate 25 and the second substrate 21; and then curing the encapsulating adhesive.

[0068] The step of placing the label layer 1 on the light-emitting side of the backlight structure 2 includes: coating the edge of the first substrate 13 and / or the backlight structure 2 with encapsulating adhesive, aligning the first substrate 13 and the backlight structure 2 so that the encapsulating adhesive is located between the first substrate 13 and the backlight structure 2, and then curing the encapsulating adhesive.

[0069] Example 2

[0070] like Figure 4 As shown, this embodiment provides a digital currency hardware wallet, which differs from the digital currency hardware wallet provided in Embodiment 1 in that: the backlight structure 2 and the tag layer 1 are located in the non-display area, the tag layer 1 is located on the light-emitting side of the backlight structure 2, and the display area is provided with a display structure 3 for information interaction. During digital currency transactions, the light emitted by the backlight structure 2 in the non-display area illuminates the tag layer 1, causing it to produce a specific mesh-like pattern. The transaction terminal receives this light and identifies the mesh pattern. Only when the mesh pattern matches a mesh pattern stored in the transaction terminal is a digital currency transaction allowed. The transaction is then conducted through the display structure 3 in the display area.

[0071] In the aforementioned digital currency hardware wallet, the backlight structure and the label layer are independent of the display structure. The material selection for the light-emitting layer in the label layer is not limited by the light emission wavelength of the display structure, which increases the flexibility in selecting the light-emitting layer material. At the same time, the display effect of the display structure is not affected by the label layer, thus ensuring the display effect of the display structure.

[0072] Specifically, the material of the light-emitting layer 11 is selected according to the wavelength of the light emitted by the backlight structure 2 to ensure that the label layer 1 can be excited by the light emitted by the backlight structure 2 and emit light. The light emitted by the label layer 1 can be visible light or invisible light. The device of the transaction terminal used to receive the light emitted by the label layer 1 is also adjusted according to the wavelength of the light emitted by the label layer 1. In one embodiment, the material of the light-emitting layer 11 can be an infrared emitting material, so that the label layer 1 emits a specific mesh-like infrared light. Since the infrared light is invisible light, it is difficult to obtain the specific mesh pattern of the light-emitting layer 11, thereby increasing the difficulty of counterfeiting.

[0073] As an optional implementation, the label layer 1 further includes a patterned insulating layer with a mesh-like gap; the light-emitting layer 11 is located within the gap. Specifically, the insulating layer is made of acrylic resin or negative photoresist; the thickness of the insulating layer is 1μm-100μm.

[0074] In this embodiment, the display structure 3 includes a sixth substrate, a fifth electrode layer, a second display light-emitting layer, and a sixth electrode layer stacked sequentially; or, the display structure 3 includes a sixth substrate, a fifth electrode layer, a second display light-emitting layer, a sixth electrode layer, and a seventh substrate stacked sequentially. The sixth substrate can be integral with the second substrate 21 or can be disposed separately; the seventh substrate can be integral with the third substrate 25 or can be disposed separately.

[0075] This embodiment also provides a method for preparing a digital currency hardware wallet, which differs from the method for preparing a digital currency hardware wallet provided in Embodiment 1 in that: the backlight structure 2 is formed in the non-display area of ​​the digital currency hardware wallet, and a display structure 3 for information interaction is formed in the display area.

[0076] Furthermore, in this embodiment, after the light-emitting layer 11 is formed in the gap, the insulating layer can be left unremoved. After the label layer 1 is placed on the light-emitting side surface of the backlight structure 2, the insulating film is located between the backlight structure 2 and the first substrate 13. In this case, the insulating film can be made of acrylic resin, and the thickness of the insulating film is 1μm-100μm. The parameters for curing the insulating film include: a curing temperature of 150℃-300℃ and a curing time of 3min-5min.

[0077] Example 3

[0078] like Figure 5 - Figure 6As shown, this embodiment provides a digital currency hardware wallet, which differs from the digital currency hardware wallet provided in Embodiment 1 in that: the tag layer 1' is located in the non-display area, and the tag layer 1' includes a light-emitting layer 11', a patterned insulating layer 18, and a third electrode layer 15 and a fourth electrode layer 16 disposed opposite to each other. The insulating layer 18 has a mesh-like gap, and the light-emitting layer 11' is located in the gap and between the third electrode layer 15 and the fourth electrode layer 16; the display area is provided with a display structure 3 for information interaction. When conducting digital currency transactions, by applying voltage to the third electrode layer 15 and the fourth electrode layer 16, the light-emitting layer 11' generates a specific mesh-like light; the transaction terminal receives the light and identifies the mesh pattern. Only when the mesh pattern matches the mesh pattern stored in the transaction terminal is a digital currency transaction allowed; subsequently, the digital currency transaction is conducted through the display structure 3 in the display area.

[0079] In this embodiment, the material of the light-emitting layer 11' is not limited, and the device used by the transaction terminal to receive the light emitted by the tag layer 1' is also adjusted according to the wavelength of the light emitted by the tag layer 1'. In one embodiment, the material of the light-emitting layer 11' can be an infrared emitting material, causing the tag layer 1' to produce a specific mesh-like infrared light. Since the infrared light is invisible light, it is difficult to obtain the specific mesh pattern of the light-emitting layer 11', thereby increasing the difficulty of counterfeiting.

[0080] In this embodiment, the material of the insulating layer 18 includes acrylic resin or negative photoresist, and the thickness of the insulating layer 18 is 1μm-100μm.

[0081] In this embodiment, the digital currency hardware wallet also includes a Near Field Communication (NFC) module, which is electrically connected to the third electrode layer 15 and the fourth electrode layer 16 to power the tag layer 1'. Specifically, the transaction terminal provides a radio frequency field. When the digital currency hardware wallet comes into contact with the transaction terminal, the NFC module converts the radio frequency field into electrical energy, which is then transmitted to the tag layer 1'. Therefore, the tag layer 1' does not require an additional power supply, which simplifies the structure of the digital currency hardware wallet.

[0082] like Figure 6As shown, in this embodiment, the label layer 1' further includes a fourth substrate 14. The fourth substrate 14 is located on the side of the third electrode layer 15 facing away from the light-emitting layer 11'. The fourth substrate 14 serves as the base plate of the label layer 1', and the third electrode layer 15, the insulating layer 18, the light-emitting layer 11', and the fourth electrode layer 16 are sequentially formed on the fourth substrate 14. Further, the third electrode layer 15 is disposed on the entire surface of the fourth substrate 14, and the fourth electrode layer 16 is disposed within the gap. The fourth electrode layer 16 is also mesh-like.

[0083] In this embodiment, the tag layer 1' may further include a first semiconductor layer located between the third electrode layer 15 and the light-emitting layer 11', and a second semiconductor layer located between the fourth electrode layer 16 and the light-emitting layer 11'. Specifically, when the third electrode layer 15 is the anode and the fourth electrode layer 16 is the cathode, the first semiconductor layer is a hole transport layer and the second semiconductor layer is an electron transport layer, and the material of the third electrode layer 15 is indium tin oxide (ITO); when the third electrode layer 15 is the cathode and the fourth electrode layer 16 is the anode, the first semiconductor layer is an electron transport layer and the second semiconductor layer is a hole transport layer.

[0084] like Figure 6 As shown, in an optional embodiment, the label layer 1' may further include a fifth substrate 17. The fifth substrate 17 is located on the side of the fourth electrode layer 16 opposite to the light-emitting layer 11'. The light emitted by the light-emitting layer 11' is transmitted to the outside through the fourth electrode layer 16 and the fifth substrate 17. The fifth substrate 17 serves as an encapsulation film for the label layer 1' to prevent the organic materials in the label layer 1' from reacting chemically with substances such as oxygen and moisture in the external environment, thereby ensuring the service life of the label layer 1'. The fifth substrate 17 can be glass or an encapsulation film.

[0085] In this embodiment, the display structure 3 includes a sixth substrate, a fifth electrode layer, a second display light-emitting layer, and a sixth electrode layer stacked sequentially; or, the display structure 3 includes a sixth substrate, a fifth electrode layer, a second display light-emitting layer, a sixth electrode layer, and a seventh substrate stacked sequentially. The sixth substrate can be integral with the fourth substrate 14 or can be disposed separately; the seventh substrate can be integral with the fifth substrate 17 or can be disposed separately.

[0086] In this embodiment, the digital currency hardware wallet further includes a second power supply module, which is electrically connected to the fifth and sixth electrode layers to provide power to the display structure 3. The second power supply module can be an energy storage battery.

[0087] In this embodiment, the digital currency hardware wallet further includes: a data storage module for storing digital asset private keys; a data encryption / decryption module for improving security during digital currency transactions; and a digital currency core processing unit, which is electrically connected to both the data storage module and the data encryption / decryption module for conducting digital currency transactions. The near-field communication module is equipped with a communication interface for communicating digital currency-related transaction information.

[0088] In this embodiment, the transaction terminal includes: an NFC initiating device for generating a radio frequency field; a signal receiving module for receiving the specific mesh-like light generated by the tag layer 1'; a storage module for pre-storing a specific pattern of the light generated by the tag layer 1'; and an identification and matching module electrically connected to both the signal receiving module and the storage module. During a cryptocurrency transaction, the cryptocurrency hardware wallet contacts the transaction terminal. The near-field communication module converts the radio frequency field into electrical energy, which is then transmitted to the tag layer 1', causing it to generate the specific mesh-like light. The signal receiving module receives the specific mesh-like light generated by the tag layer 1' and transmits the mesh pattern to the identification and matching module. The identification and matching module retrieves pattern information from the storage module and performs identification and matching between the mesh pattern and the pattern information. Only when the mesh pattern matches the pattern information is a cryptocurrency transaction permitted.

[0089] Furthermore, the signal receiving module adjusts according to the wavelength of the light emitted by the tag layer 1'.

[0090] This embodiment also provides a method for preparing a digital currency hardware wallet, including: forming a label layer 1', the label layer 1' including a mesh-like light-emitting layer 11' and a plurality of grids 12 surrounded by the light-emitting layer 11', adjacent grids 12 having different shapes and / or areas, the label layer 1' being formed in the non-display area of ​​the digital currency hardware wallet.

[0091] Specifically, the steps for forming the label layer 1' include: providing a fourth substrate 14, forming a third electrode layer 15 on one side surface of the fourth substrate 14; coating an insulating film on the third electrode layer 15; curing the insulating film to form a patterned insulating layer 18, the insulating layer 18 having a mesh-like gap; forming a light-emitting layer 11' in the gap; and forming a fourth electrode layer 16.

[0092] It should be understood that since the insulating layer 18 does not emit light during cryptocurrency transactions and does not affect the luminescence of the luminescent layer 11', the insulating layer 18 does not need to be removed. In this case, the material of the insulating film includes acrylic resin; the parameters for curing the insulating film include: a curing temperature of 120℃-300℃ and a curing time of 3min-15min.

[0093] Furthermore, the process for forming the light-emitting layer 11' is a vapor deposition process; the thickness of the insulating film is 1μm-100μm, and the relatively large thickness of the insulating layer 18 ensures that the light-emitting material located in the gap does not connect with the light-emitting material located on the side surface of the insulating layer 18 away from the fourth substrate 14, thereby ensuring that the light-emitting layer 11' is mesh-like.

[0094] Furthermore, after forming the third electrode layer 15 and before forming the light-emitting layer 11', a first semiconductor layer is formed in the gap. After forming the light-emitting layer 11', the first semiconductor layer is located between the third electrode layer 15 and the light-emitting layer 11'. After forming the light-emitting layer 11' and before forming the fourth electrode layer 16, a second semiconductor layer is formed in the gap. After forming the fourth electrode layer 16, the second semiconductor layer is located between the fourth electrode layer 16 and the light-emitting layer 11'.

[0095] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A digital currency hardware wallet, characterized in that, It includes a label layer, which comprises a mesh-like light-emitting layer and a plurality of grids enclosed by the light-emitting layer, wherein adjacent grids have different shapes and / or areas; The digital currency hardware wallet includes a display area and a non-display area located on the side of the display area. The display area is adapted to display an interactive interface. The display area is provided with a display structure for information interaction. The label layer is located in the non-display area; The label layer further includes: a patterned insulating layer having a mesh-like slit, the light-emitting layer being located within the slit; a third electrode layer and a fourth electrode layer disposed opposite to each other, the light-emitting layer being located between the third electrode layer and the fourth electrode layer; the insulating layer is adapted to be formed by curing an insulating film; The digital currency hardware wallet also includes: A near-field communication module, which is electrically connected to the third electrode layer and the fourth electrode layer to supply power to the tag layer; During a cryptocurrency transaction, the cryptocurrency hardware wallet comes into contact with the transaction terminal, which provides a radio frequency field. The near-field communication module converts the radio frequency field into electrical energy and transmits it to the tag layer, causing the light-emitting layer to generate a specific mesh-like light. The transaction terminal receives the specific mesh-like light and identifies the mesh pattern. Only when the mesh pattern matches the mesh pattern stored in the transaction terminal is a cryptocurrency transaction allowed.

2. The digital currency hardware wallet according to claim 1, characterized in that, The aforementioned meshes form mesh units, each mesh unit comprising a central mesh and several edge meshes. The edge meshes are distributed around and adjacent to the central mesh, and adjacent edge meshes are adjacent to each other. The central grid and each of the edge grids in the grid unit have different shapes; or, the central grid and each of the edge grids in the grid unit have different areas; or, the central grid and each of the edge grids in the grid unit have different shapes and different areas.

3. The digital currency hardware wallet according to claim 2, characterized in that, Each grid in the label layer has a different shape; or, each grid in the label layer has a different area; or, each grid in the label layer has a different shape and each grid in the label layer has a different area.

4. The digital currency hardware wallet according to claim 1, characterized in that, The insulating layer is made of acrylic resin or negative photoresist.

5. The digital currency hardware wallet according to claim 1, characterized in that, The thickness of the insulating layer is 1μm-100μm.

6. The digital currency hardware wallet according to claim 1, characterized in that, The material of the luminescent layer includes near-infrared luminescent materials, which include quantum dot near-infrared luminescent materials, organic near-infrared luminescent materials, rare earth-doped near-infrared luminescent materials, or near-infrared carbon nanomaterials.

7. The digital currency hardware wallet according to claim 6, characterized in that, The quantum dot near-infrared luminescent material includes a CdTe / CdSe core-shell structure; the organic near-infrared luminescent material includes indocyanine green; the rare earth-doped near-infrared luminescent material includes Er-doped NaYF4; and the near-infrared carbon nanomaterial includes single-walled carbon nanotubes.

8. A method for preparing a digital currency hardware wallet as described in any one of claims 1 to 7, characterized in that, include: A label layer is formed, the label layer comprising a mesh-like light-emitting layer and a plurality of grids surrounded by the light-emitting layer, wherein adjacent grids have different shapes and / or areas; The digital currency hardware wallet includes a display area and a non-display area located on the side of the display area. The display area is adapted to display an interactive interface. The display area is provided with a display structure for information interaction. The tab layer is located in the non-display area. The step of forming the label layer further includes: forming a third electrode layer in the non-display area; forming a fourth electrode layer in the non-display area, wherein the fourth electrode layer and the third electrode layer are disposed opposite to each other; and forming a light-emitting layer after forming the third electrode layer and before forming the fourth electrode layer. The step of forming the light-emitting layer includes: coating an insulating film onto the third electrode layer; curing the insulating film to form a patterned insulating layer having a mesh-like gap; and forming the light-emitting layer in the gap. The digital currency hardware wallet further includes a near-field communication module, which is electrically connected to the third and fourth electrode layers to power the tag layer. During a digital currency transaction, the digital currency hardware wallet contacts a transaction terminal, which provides a radio frequency field. The near-field communication module converts the radio frequency field into electrical energy and transmits it to the tag layer, causing the light-emitting layer to generate a specific mesh-like light. The transaction terminal receives the specific mesh-like light and identifies the mesh pattern. A digital currency transaction is only allowed when the mesh pattern matches a mesh pattern stored in the transaction terminal.

9. The method for preparing a digital currency hardware wallet according to claim 8, characterized in that, The insulating film is made of acrylic resin; the thickness of the insulating film is 1μm-100μm. The parameters for curing the insulating film include: curing temperature of 120℃-300℃ and curing time of 3min-15min.

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