Artificial nails with a display

Abstract

Artificial nail (2) with a display (1), containing additional electronic elements: an energy storage element (5), a central unit (4), communication element(s) (3) and connecting element(s) (19) embedded in a carrier. The electronic elements are connected to each other on a circuit board (13) with printed wiring fixed to the base layer (11) and formed with a flexible current-conducting film (12). The electronic base (14) formed in this way is embedded in the carrier (6). A magnetic or magnetizable switch (15) is also connected to one of the electronic elements, furthermore, between the artificial nail (2) and the nail (17), a sensor surface (16) is placed at least partially, and the material of the sensor surface (16) is magnetic or it can be magnetized.

Description

[0001] ARTIFICIAL NAILS WITH A DISPLAY

[0002] The subject of the invention is an artificial nail realized with a display, which contains additional electronic elements. Namely, an energy storage element, a central unit, communication element(s) and connecting element(s), which are embedded in a carrier. The artificial nail is in wired or wireless connection with an external device. The input of the energy storage element is connected to the output of a charging circuit. The output of the energy storage element is connected to the input of a DC-DC converter. The output of the DC-DC converter is connected to a central unit consisting of a microcontroller and memory, as well as to the communication element(s) provided with an antenna connected to the central unit and to the display. The electronic elements are connected to each other on a circuit board with printed wiring fixed to the base layer and formed with a flexible current-conducting film. The electronic base formed in this way is embedded in the carrier.

[0003] Artificial nails are fashion items which are used to cover natural nails with various decorative elements and to decorate nails. The fashion for nail decoration can be traced back to ancient times. From the beginning of the 20th century, new materials for strengthening and decorating the nail appeared continuously. The big breakthrough came with the use of polymer materials used in dentistry. Experiments were carried out with many different materials, and in the 1970s the two-component acrylic was born, consisting of liquid and powder. The polymerization process starts with the mixing of the two materials and in a very short time forms a smooth, hard, yet flexible surface with a very nice shine. Another popular artificial nail building material is gel, in which polymerization starts under the influence of light. The latest development is polygel or acrylic gel, which can be molded in a similar way to porcelain, but hardens under the influence of light, thus combining the technically advantageous properties of the two main base materials. The artificial nail does not damage the natural nail. However, without proper preparation, it does not stick permanently and a fungal or bacterial infection can form under it, which can destroy the original nails.

[0004] Basically, artificial nails can be made using two types of techniques, tip and built-up techniques. With the tip technique, ready-made, factory-shaped artificial nail tips are glued to the properly prepared natural nail. Since these tips are shaped and made with an imagined ideal curve, beautiful nails cannot be created with them for everyone. (The shape of human nails is very diverse, unique to everyone). In recent years, their use has declined and built-up technology is gaining more popularity. In this case, a template is placed on the natural nail, which serves as the basis for the nail to be built. The gel or acrylic-based artificial nail construction material is applied to it and then shaped. The material binds under the influence of natural air or UV / LED light and takes on its final shape. After drying, the template is removed and the nail is enriched with additional polishing material and decoration.

[0005] Nowadays, electronically operated artificial nails are also produced. The so-called N3 chip, can be used to imitate various mobile phone and smart watch functions, but these are essentially virtual solutions. In order for them to be able to perform any function, a mobile phone connection is required, but even in this case they are only capable of passive operation. Experiences related to this solution show, on the one hand, the significant vulnerability of the design and, on the other hand, the uncertainty of its operation.

[0006] Patent application No. US 2016295989 A1 is known, which relates to artificial nails with a display. The device according to the invention contains an artificial nail. The nail includes a display and a power source that powers the display. The invention further discloses a system. The system includes a computer that is capable of receiving data, and also includes an artificial nail with a display and a power source. The computer communicates with the artificial nail, on the display of which it displays visual information, at least partially based on the input data.

[0007] The device includes a body designed to fit the user's nail; and a display connected to the upper surface of the body using electrophoretic ink or electronic paper suitable for displaying the decoration placed on the nail. It can also include a receiver unit suitable for computer communication to receive the planned decoration plan.

[0008] This invention essentially describes an idea. It refers to a universal artificial nail concept that starts from an artificial nail with a simple display and is developed to an artificial nail corresponding to a smartwatch-level device. The document essentially refers to the description of the appearance of the artificial nail and its communication with individual computing devices, without describing its technical implementation and the real design possibilities. Artificial nails with changeable graphics are already known in the state of the art. The invention lists countless carrier materials which, according to the document, are suitable for artificial nail carriers and for the realization of artificial nails. Materials mentioned as examples in the description: plastic, metal, glass, wood, acrylic and rubber. In the description, the teaching about the structure and design of nails is quite utopian. In our opinion, the invention, especially given the lack of teaching, is not feasible.

[0009] Patent application WO2018043156 describes an artificial nail with an image. Its goal is to provide a display update system that changes the image displayed on the artificial nail and simplifies the design of the artificial nail. This is solved by the fact that the artificial nail contains a thin film transparent electrode (ITO), the electrode layer is attached to the nail on the lower surface of the transparent layer. It contains a display sheet machined in a shape following the lower surface of the transparent body. It is fixed to the transparent body in such a manner that the upper surface of it is covered by a common electrode layer and the lower surface of it is exposed. The common electrode layer forms a common electrode in the electronic paper. The display forms the display layer of the electronic paper. A writing device is used for changing the displayed image. In the writing device an elastic film is sucked in to which a guiding sheet is fixed for the electronic paper. The guiding sheet is closely adhered to the display sheet of the artificial nail in the writing device. The electronic paper consists of the common electrode layer, the display sheet and the guiding sheet. The display contents are changed by means of the writing device.

[0010] This solution does not have an overwriting or electronic system in the nail. Although it is possible to change the image displayed on the nail electronically, to this an external unit is required. Furthermore, the nail itself cannot communicate with other devices.

[0011] Patent application JP 6441784 B2 describes an imaging device for artificial nails. The device includes a control part that outputs image data to an artificial nail having an electronic paper through an output part, a cylindrical first element and a second element disposed in the first member and having the output part. The second member is movable back and forth between a projected position, in which the output part is projected outward from one end portion of the first member and a retracted position in which the output part is disposed in the first member. In this solution, the display is placed on the nail, and the device that updates the image is enclosed in a device similar to a lipstick box, with which the mobile device can communicate. In this solution, the nail does not contain any other electronics and the images are stored in an external device, and it also does not contain any other communication solution. US document No. US 2009277470 describes a portable digital and electronic nail painting and designing kit. It is suitable for quickly and easily applying different images to the artificial nail glued to the natural human nail, as well as changing the appearance of the artificial nail. It includes a compact case. In the case, colors, designs and images are stored in a computer graphics program. The case has at least three windows for selecting and displaying different images. A light pen is attached to the compact case, which is suitable for transferring the selected color, design and image to the artificial nail with the tip of the light pen. With this, the temporarily stored data for the given image is transferred to the designated area on the upper surface of the artificial nail with the tip of the light pen. A high pixel count mini monitor is used. The compact case is battery or solar powered and can access and download images stored on the computer or from websites over the internet. The compact case also includes a calculator, date / time and memo pad functions.

[0012] In this solution, the nail cannot communicate with the outside world except for the pen. It does not have a wireless module, and the different images can only be applied to the artificial nail with the intermediate device (light pen). The description does not explain how the hardware is solved, what tool / tools would be used to solve this problem.

[0013] Patent application US 11503892 B1 presents an artificial nail equipped with a touch- sensitive screen and a control circuit, a corresponding stylus, and circuit diagrams of the control circuit. The control circuit according to the document is made up of an energy storage element, a charging circuit, and a voltage regulator, which are connected to the central unit. Furthermore, the control circuit contains several antennas, which ensure the charging of the energy storage element and create a wireless communication link between the artificial nail and external devices. External devices can be: smartphone, computer or tablet and a stylus. The artificial nail is made of an acrylic-based material (e.g. polymethyl methacrylate) to which the control circuit is attached and embedded in a carrier according to choice (e.g. epoxies, polyurethanes, polyamides, cyanoacrylates, silicone or latex).

[0014] Patent Application CN 212014777 U shows a nail decoration sheet and charger through two embodiments. The first embodiment includes: an artificial nail body; an e- paper display; a main control unit, a memory, an NFC communication unit, a power supply a control unit built into a decorative dome; conductive foil built into the artificial nail body; a connecting unit; a battery. The connecting unit and the battery are attached to the bottom of the artificial nail at the end of the artificial nail. The conductive foil provides an electrical connection between the electrical accessories built into the decorative dome, the connection unit and the battery. The second embodiment includes: artificial nail body; insulating layer; printed antenna; display and protective layer. The printed antenna contains the electronic elements, which are the following: main control unit, memory, NFC communication unit, power supply control unit, and a second energy storage unit. The printed antenna has a wired or wireless connection to the connecting elements arranged in a dome attached to the body of the artificial nail and the battery from below at the tip of the artificial nail. The artificial nail is equipped with a reset switch that indicates when the battery is missing.

[0015] Patent application JP 2018121704 A presents a fingernail pulse oximeter consisting of a sensor body covered with a waterproof layer on the outside and an analyzing unit. The analyzing unit is a separate unit installed in the sensor body or connected to it via a wireless connection. The sensor body is made up of a base layer, a light-emitting part, a light-detecting part, a control unit, a wireless communication unit, and an energy storage element.

[0016] The artificial nail according to the present invention has many other properties which are not or only partially described in the prior art documents. As a power source, the latest, state-of-the-art super capacity / battery technology is used, which would eliminate the need for the under-the-nail tip battery pack mentioned in the CN 21201 777U invention; thereby increasing the wearer's sense of comfort.

[0017] The artificial nail according to the present invention also contains a pulse oximeter, which can determine not only the pulse as described in patent document JP2018121704A, but also the level of the blood oxygen. In addition, the artificial nail is equipped with a color display and a microcontroller, which with a suitable program can display the data provided by the pulse oximeter, if, for example, the measured values fall outside a given tolerance (e.g. a healthy oxygen level or a healthy heart rate). According to the description, JP2018121704A cannot provide this option.

[0018] The color display of the artificial nail can display a variety of images, figures, numbers, letters, and shapes in almost any color; therefore, it has far more features than the devices detailed in documents JP2018121704A, CN 212014777U and US11503892B1.

[0019] The device presented in US11503892B1 is only capable of illuminating the nail with a given color; although the invention includes the wireless connection and applicationbased, mobile device-level user control, its functionality falls short of the artificial nail of the present invention.

[0020] The aim of the present invention is to produce artificial nails which are thinner as compared to the previous solutions, but at the same time equipped with electronic and communication capabilities that meet today's expectations. Furthermore, a solution is aimed that does not require the use of a special external device to get the information into the nail. A further aim was to ensure that the information stored in the artificial nail is removed according to the user's intention and / or automatic removal of it after removal of the artificial nail.

[0021] It has been realized that if the electronics are built on a conductive film laminated to a suitably flexible base layer, then this is coated with an additional carrier, a so-called flat capsule is created that fits the nail, then the electronics do not take up a significant volume, and the thickness of the artificial nail can be made sufficiently thin. If the material of the carrier is sufficiently flexible, the base layer can also be provided by the carrier. With the carrier, the adequate resistance of the artificial nail to physical effects can be ensured. It has been realized that by using a sensor surface - which is ideally connected wirelessly to the electronics - it is possible to ensure that the data stored in the artificial nail is deleted automatically according to the wearer's intention or when the artificial nail is removed.

[0022] The artificial nail created in this way can also be supplemented with a pulse oximeter, which can be used to measure the pulse and blood oxygen level. The purpose of the pulse oximeter is twofold. On the one hand, it monitors the heart rate parameters and also determines the blood oxygen level. The reason for its use is also twofold. In addition to ensuring the vital parameters, in order to avoid misuse (data copying, reprogramming, modification, i.e. cracking) by unauthorized persons, its signal is used to delete the entire media in the artificial nail's memory in the event of the termination of the vital parameters. The use of the pulse oximeter for sudden condition recognition in this artificial nail can save lives, because in the event of a sudden cardiac arrest, it immediately sends an alarm to the artificial nail wearer's smart device e. g. a smart phone, and if the wearer does not react within a certain time, alerts the employees of the national ambulance service to the scene on the basis of the coordinates of the smart phone, in order to start immediate resuscitation, and in the smart device previously denoted relatives are immediately alerted to the scene. This solution can reduce the number of deaths due to sudden cardiac arrest, which claimed 20-25 thousand registered cases in Hungary in 2023, as the wearer of artificial nails receives medical care even within minutes.

[0023] The present invention is therefore an artificial nail with a display, which contains additional electronic elements: an energy storage element, a central unit, communication element(s) and connecting element(s), which are embedded in a carrier. The artificial nail is in wired or wireless connection to an external device. The input of the energy storage element is connected to the output of a charging circuit. The output of the energy storage element is connected to the input of a DC-DC converter. The output of the DC-DC converter is connected to a central unit consisting of a microcontroller and memory, as well as to the communication element(s) provided with an antenna connected to the central unit and to the display. The electronic elements are connected to each other on a circuit board with printed wiring fixed to the base layer and formed with a flexible current-conducting film. The electronic base formed in this way is embedded in the carrier. A magnetic or magnetizable switch is also connected to one of the electronic elements. Furthermore, between the artificial nail and the nail, a sensor surface is placed at least partially, and the material of the sensor surface is magnetic or it can be magnetized.

[0024] Some advantageous embodiments of the present invention are described in the appended claims.

[0025] Detailed description of the present invention is given with reference to the drawings. Figure 1 shows exploded views of the artificial nail layers placed on the nail, where: Figure 1a shows the natural nail and the sensor surface;

[0026] Figure 1 b shows the circuit board placed on the flexible base layer, the current conducting film and the electronic elements;

[0027] Figure 1c shows the carrier covering individual elements of the artificial nail;

[0028] Figure 1d shows the display layer when it is connected to the electronic elements by means of a ribbon cable; Figure 1e shows the protecting foil if the upper surface of the artificial nail is sealed with it.

[0029] Figure 2 is the perspective view of the layers placed on each other.

[0030] Figure 3 is the perspective view of the artificial nail without the protecting foil.

[0031] Figure 4 is the perspective view of the embodiment according to Figure 2 placed above the nail.

[0032] Figure 5 is a perspective view of the embodiment according to Figure 3, placed above the nail.

[0033] Figure 6 is a perspective view of the layering of individual layers placed on the nail, where the flexible base layer is closest to the nail and the protective film is furthest from the nail.

[0034] Figure 7a. shows the perspective view of the circuit board placed on the flexible base layer, the current-conducting film and the electronic elements, where the artificial nail is wirelessly connected to the external control element shown in front view in Fig 7b. Figure 8 is a block diagram of the connection of the electronic elements.

[0035] Figure 9 is a block diagram showing the connection of the electronic elements, where the electronic elements are supplemented with a pulse oximeter.

[0036] Fig. 10 is the perspective view of the circuit according to Fig.7 supplemented with a pulse oximeter.

[0037] The present invention is an artificial nail 2 (Figures 1 a - 1e) where the pattern of the artificial nail 2 is displayed with the display 1 (Figure 3). The pattern is displayed with additional electronic elements connected to display 1. These are essentially the energy storage element 5, the central unit 4, the antenna 20 providing wireless connection to an external device 18, or a connecting element 19 enabling the wired connection through the communication element 3 (Figures 7a and 7b). The device formed in this way is embedded in the carrier 6 (Figure 2). The electronic elements and their electrical connection are as follows: the input of the energy storage element 5 is connected to the output of the charging circuit 7. The output of the energy storage element 5 is connected to the input of the DC-DC converter 8. The output of the DC-DC converter 8 is connected to the central unit 4 consisting of the microcontroller 9 and the memory 10, as well as to the communication element(s) 3 connected to the central unit 4 and to the display 1 (Figure 8). The electronic elements are connected to each other on the circuit board 13 provided with printed wiring fixed to the flexible base layer 11 , formed with a flexible conductive film 12, and the electronic base 14 formed in this way is embedded in the carrier 6 (Figures 1 b and 1c). The electronic elements can be supplemented with magnetic or magnetizable switch 15. The switch 15 can ensure that after the artificial nail 2 is separated from the nail 17, the data stored in the artificial nail 2 is deleted, for which a sensor surface 16 is placed at least partially between the carrier 6 and the nail 17, which activates the switch 15 in order to delete it. (Figures 1a, 1b and 4). The material of the sensor surface 16 is preferably magnetic or magnetizable material. If the external device 18 is a mobile phone, then an application which is suitable for programming the artificial nail 2 can be placed on it, which also enables the deletion of the data stored in the artificial nail 2 when the artificial nail 2 is removed. In this case, the sensor surface 16 that detects the removal of the artificial nail 2 can be omitted.

[0038] The display 1 is connected to the microcontroller 9 on the electronic base 14 directly or indirectly — for example, via a coupling circuit — with the ribbon cable 22 (Figures 2 and 4) or via a wireless connection (Figure 8).

[0039] In addition to the display 1 , the carrier 6 contains all the electronic components necessary for the operation and charging of the artificial nail 2, as well as for communication and data storage (Figures 1 b and 7a).

[0040] The base material of the carrier 6 is the so-called PMMA (Polymethyl Methacrylate), but it is preferable to use EMA (Ethyl Methacrylate Monomer).

[0041] The empty space between the electronic elements is filled with the same EMA material. This also ensures the mechanical and chemical protection of the electronic elements (watertightness, prevention of dissolution, exclusion of impurities, etc.).

[0042] The electronic base 14 contains the electronic elements, which are connected to each other on the circuit board 13 provided with printed wiring formed with a flexible conductive film 12. The circuit board 13 is attached to a flexible base layer 11 made of polyethylene terephthalate (PET). It is noted here that instead of the flexible base layer 11 , the material of the carrier 6 may also be suitable (this embodiment is not shown). The display 1 is attached to the surface of the carrier 6 opposite to the nail 17.

[0043] The structure can be changed to some extent by making the substrate 6 thinner, and the electronic base 14 is glued to it to provide a uniform surface for the components. The electronic base 14 is inserted directly into the carrier 6 still in liquid / shapable form (this embodiment is not shown). In the embodiment according to Figures 1 b. and 7a. the electronic base 14 is built on the flexible base Iayer11 . That is, the carrier 6 can be designed in such a way that it completely surrounds the electronic base 14, or in such a way that the bottom surface of the artificial nail 2 is formed by the flexible base layer 11.

[0044] The circuit can also be completed with a pulse oximeter 23 (Figures 9 and 10), which is a device suitable for determining the pulse rate and blood oxygen level. Independent of external lighting it calculates the values from the ratio of light emitted by the sensor, which is absorbed by the body. The pulse oximeter chip contains the units responsible for calculating the oxygen level. It contains several types of LEDs (infrared, red, green) which enable multispectral measurement. The pulse oximeter 23 transmits the data to the control unit 9 via a standard i2C bus. In this case, the base layer 11 and the electronic base 14 are designed to be permeable to light. The permeability to light can be ensured either in the material of the layer formed in a given place, or with a window created by using a suitable cut-out. This is not shown in the Figures.

[0045] Of course, the data can also be stored directly in the microcontroller 9 of the artificial nail 2, and various decorations can be displayed alternately on the display 1 , programmed in advance. In this case, it is not necessary to integrate 20 antennas into the device, because in this case there is no connection with the external device 18.

[0046] Furthermore, the artificial nail 2 can be connected to the external device 18 with the connecting element 19 via a direct wired connection, which can also be a mobile phone (indicated by a dotted line in Figures 7a, 7b). The surface of the display 1 is covered with the protecting foil 21 in order to avoid damage caused by possible mechanical effects.

[0047] Display 1 shows the decoration or information programmed into the artificial nail 2 (e.g. heart rate or blood oxygen level). The 1 display can be: e-paper (e-ink); OLED; QLED; Mini-LED; Micro-LED; AMOLED; electroluminescent display.

[0048] The material of the display 1 is resistant to the construction process of the artificial nail 2; and takes the predetermined shape of the carrier 6 of the nail 17 or artificial nail 2. Currently, the use of bendable OLED-based display 1 is preferred, which may change in the future with the development of technology. In order to save energy, the duration of the display can be adjusted and programmed. The display 1 are expediently preintegrated on the carrier 6, they are provided with a protecting foil 21 and their side towards the nail 17, or the lower surface of the flexible base layer 11 forming their lower surface is designed in such a way that the adhesive used also on the nail 17 easily adheres to it.

[0049] In the case of display 1 with e-ink technology, extremely low consumption can be achieved; it is only necessary to use electrical energy to change the displayed information. In the case of OLED, the display 1 and the surface of the artificial nail 2 light up. The displayed images can be colored or monochrome, depending on the type of display 1.

[0050] Another main point is that the artificial nail 2 is resistant to all materials used during gluing and construction, including the display 1 and all electronic components. To achieve this, into the carrier 6 and, where applicable, into the carrier 6 and flexible base layer 11 the individual components must be integrated using a so-called encapsulation process.

[0051] The task of the carrier 6 of the artificial nail 2 and, where applicable, the flexible base layer 11 as a coating, is to ensure the mechanical stability of the display surface 1 and to follow the natural curve of the nail 17. The carrier 6 and, where applicable, the flexible base layer 11 cover and fill the cavities of the interior space, carry the display 1 and the electronic elements and the connections between them. This can be easily achieved with the already mentioned encapsulation process, which consists of putting the prepared, already functional electronic elements into a negative form corresponding to the final shape of the artificial nail 2, where the free volume, inside the coating, is filled with the material of carrier 6 and, where appropriate, with material of the flexible base layer 11 . The still pliable material of the carrier 6 is injected into the interior of the negative mold. After the coating has solidified, the display 1 and, where appropriate, the protecting foil 21 are placed on it.

[0052] The complete artificial nail 2 must have mechanical properties that make them suitable for resistance to external influences resulting from general use: sudden negative acceleration, strong scratching effects, wear, bending in a small extent.

[0053] The power supply of the artificial nail 2 would primarily be provided by the energy storage element, namely battery. The battery capacity depends on the expected operating time and the display brightness (if any). The battery is preferably a Li-ion, Li- polymer, Na-ion battery. The device uses a high-efficiency (p>95%) DC-DC converter 8 (such as TPS81256SIPT) and LDO (low-dropout such as XC6206P332MR) regulator to generate the appropriate voltage levels, which are required by microcontroller 9 (such as ATMega328P), display 1 (such as SSD1306) and peripherals (e.g. bluetooth) and antenna 20.

[0054] The artificial nail 2 can be charged electrically with the connecting element 19, which is protected against short circuit and reverse current, and also with the well-known, so- called wireless charging unit. If the electronic base 14 does not contain a battery, its power supply can be solved with so-called wireless energy transfer, or with a thin ribbon cable, as well as with an additional glove designed for this purpose, for example with capacitive storage (not explained in detail for reasons of clarity). Charging can be done with a conventional, USB or wireless charger.

[0055] In the case of low-consumption display 1 (e-paper) and electronic elements, the power source can also be a battery or capacity, which can also be placed in the carrier 6. Adequate power can be provided from several sources, including but not limited to: thermoelectric, piezoelectric, electromagnetic, etc.

[0056] The artificial nail 2 can communicate with multimedia devices such as phones, smart watches, computers, laptops, notebooks, etc. The communication element 3 and protocol can be diverse. Methods where a wireless power source is also available, such as a wireless charger or coil, are preferred. One-way or two-way data transmission can be realized through these channels. Furthermore, the communication between the artificial nails 2 can also be realized in this way. The external wireless power source is necessary if the energy storage element 5 cannot be used to maintain the communication channel for a sufficient period of time, because it would lead to a loss of energy or a shutdown. The communication element 3 formed in the artificial nail 2 can be a communication device such as bluetooth, NFC, wireless RFID, etc. A selfdeveloped communication protocol can also be developed and used to implement communication, which is based on near-field communication (NFC).

[0057] In order to avoid misuse (data copying, reprogramming, modification, i.e. cracking) by unauthorized persons, images and graphics cannot be downloaded from the artificial nail 2 according to our invention. Only uploading and deleting is possible. In addition, a safety timer and electronics that detect the removal of the artificial nail 2, i.e. its carrier 6, are also built in, one of the possible forms of which is the switch 15 and the sensor surface 16, the removal of which from each other deletes the data stored in the memory 10 of the artificial nail 2 after a certain time. This would ensure the protection of the user's data after the removal of the artificial nail 2. Furthermore, the switch 15 and sensor surface 16 described above can be replaced by the pulse oximeter 23 built into the artificial nail 2 in such a way that the pulse signal and / or blood oxygen level signal of the pulse oximeter 23 is used to determine the presence of the artificial nail on the surface of the nail 17.

[0058] The previously described method can be supplemented with additional software recognition e.g. with pulse and blood oxygen level pattern recognition in such a way that it cannot be manipulated when transferred to another person.

[0059] The advantages of the present invention are that the smart artificial nail with the display according to our invention is an electronic accessory, decoration or information element which can be programmed with or without wires. The artificial nail that can be attached to the nail / nails can be used multiple times and can be loaded with electronically changeable content. Depending on the current consumption, its power source is a battery, which is powered by a wireless charger (for example, an electromagnetic charger) or a wired charger. It may contain electrical memory module(s) suitable for recording, storing and retrieving data, similar to smart electronic devices (smartwatch, smartphone, etc ). It is suitable for performing tasks similar to smart devices by properly programming the microcontroller which is a part of it. In addition, the artificial nail can be supplemented with circuits suitable for wireless data transmission, as well as other basic sensors which can be used to measure various environmental conditions (temperature, humidity, magnetic field strength, material presence sensor, light sensor, acceleration sensor).

Claims

Claims1. Artificial nail (2) with a display (1 ), containing additional electronic elements: an energy storage element (5), a central unit (4), communication element(s) (3) and connecting element(s) (19) embedded in a carrier, the artificial nail (2) is in wired or wireless connection to an external device (18), the input of the energy storage element (5) is connected to the output of a charging circuit (7), the output of the energy storage element (5) is connected to the input of a DC-DC converter (8), the output of the DC- DC converter (8) is connected to a central unit (4) consisting of a microcontroller (9) and memory (10), further it is connected to the communication element(s) (3) provided with an antenna (20) connected to the central unit (4) and also to the display (1 ), the electronic elements are connected to each other on a circuit board (13) with printed wiring fixed to the base layer (11 ) and formed with a flexible current-conducting film (12), the electronic base (14) formed in this way is embedded in the carrier (6), characterized in that a magnetic or magnetizable switch (15) is also connected to one of the electronic elements, furthermore, between the artificial nail (2) and the nail (17), a sensor surface (16) is placed at least partially, and the material of the sensor surface (16) is magnetic or it can be magnetized.

2. Artificial nail according to claim 1 characterized in that the material of the carrier (6) and the base layer (11 ) is the same, namely polymethyl methacrylate (PMMA) or ethyl methacrylate monomer (EMA).

3. Artificial nail according to claim 1 characterized in that the carrier (6) is polymethyl methacrylate (PMMA) or ethyl methacrylate monomer (EMA), and the base layer (11 ) is polyethylene terephthalate (PET).

4. Artificial nail according to any of claims 1 - 3 characterized in that the external device (18) is a mobile phone.

5. Artificial nail according to any of claims 1 - 4 characterized in that an antenna (20) is connected directly or indirectly to the central unit (4).

6. Artificial nail according to any of claims 1 - 5 characterized in that the display (1 ) is covered with a protecting foil (21 ).

7. Artificial nail according to any of claims 1 - 6 characterized in that the display (1 ) is connected to the microcontroller (9) on the electronic base (14) directly or indirectly via a coupling circuit with a ribbon cable (22) or via a wireless connection.

8. Artificial nail according to any of claims 1 - 7 characterized in that a pulse oximeter (23) determining the pulse and the blood oxygen level contains a chip.

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