An electronic device for preventing forgery
By integrating anti-counterfeiting devices with solar cells, electroluminescent devices, and electrostatic pattern display areas, the problem of low anti-counterfeiting levels in existing technologies has been solved. This enables multi-level anti-counterfeiting verification under different lighting conditions, increasing the difficulty and reliability of anti-counterfeiting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-08-26
- Publication Date
- 2026-03-27
AI Technical Summary
Existing anti-counterfeiting technologies are insufficient to effectively distinguish between genuine and counterfeit products, and can only crack information through simple methods, resulting in a low level of anti-counterfeiting and an inability to effectively prevent the emergence of counterfeit and substandard products.
By integrating solar cell devices and electroluminescent devices into a single electronic device, and combining photoluminescence and electrostatic pattern display areas, the solar cells generate electricity to drive the electroluminescent devices to display information, and under short-wave ultraviolet light irradiation, they excite colored light, achieving a higher level of anti-counterfeiting function in combination with the electrostatic pattern display area.
Under clear weather conditions indoors or with indoor lighting, the anti-counterfeiting pattern is displayed by electroluminescence driven by solar cells. Under ultraviolet light, the electrostatic pattern display area presents the same pattern as the covering material, achieving a higher level of anti-counterfeiting verification and increasing the difficulty and reliability of anti-counterfeiting.
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Figure CN115440723B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present invention belongs to the field of product design and manufacturing of display and solar cell devices. In particular, it relates to an electronic device for anti-counterfeiting. BACKGROUND
[0002] At present, with the continuous improvement of people's living standards, people's demand for high-end consumer goods and luxury goods is growing stronger. But due to the driving of interests, various high-end products have been exposed to counterfeit products with inferior quality, and fake and shoddy products with the same outer packaging and attached anti-counterfeiting barcodes, and the ways of counterfeiting are endless. The sales volume and price-earnings ratio of products sold through regular channels have been greatly impacted, causing great economic and reputational losses to regular enterprises. In view of the increasingly prevalent social atmosphere of unfairness, regular production enterprises have higher requirements for the anti-counterfeiting identification technology of their own products. At present, a new type of display technology device is being gradually introduced into people's field of vision as an auxiliary product for identifying the authenticity of products. For example, a production enterprise can attach an ultra-thin display with pre-written product information, anti-counterfeiting codes or anti-counterfeiting patterns to the original packaging of the product. Such a display and pre-set display information correspond one-to-one with the product, and the relevant information cannot be cracked through simple means, thereby greatly improving the anti-counterfeiting technical threshold of the product. With the progress of science and technology, the anti-counterfeiting level of high-end consumer goods and luxury goods has also developed to a higher level. It is urgent to develop more advanced anti-counterfeiting technology to improve the anti-counterfeiting level of anti-counterfeiting devices. SUMMARY
[0003] The present invention proposes a more advanced anti-counterfeiting technology to address the shortcomings of the prior art, which integrates organic light-emitting, power generation and display technologies into one electronic device using more advanced organic electronics technology. The device is not only thin and light in appearance, but also cannot be replaced by other types of display devices to deceive. Only a small number of enterprises that master relevant high-tech and have mass production capacity can produce it.
[0004] In order to solve the above technical problems, the technical scheme of the present application is to provide: an anti-fake electronic device, comprising a substrate, the substrate comprising an A region, a B region, a C region and a D region; wherein a solar cell device is arranged in the A region, an electroluminescent device is arranged in the B region, the C region is a photoluminescent display area, and the D region is a static electric pattern display area; the solar cell device and the electroluminescent device are arranged on the same surface of the substrate or oppositely arranged on the front and back surfaces of the substrate; the solar cell device comprises an anode layer A, a hole transport layer A, an active layer A, an electron transport layer A and a cathode layer A which are arranged in layers; the electroluminescent device comprises a positive electrode layer B, a hole injection layer B, a hole transport layer B, a light-emitting layer B, an electron transport layer B, an electron injection layer B and a negative electrode layer B which are arranged in layers; the anode layer A and the cathode layer A of the solar cell device are respectively connected to the positive electrode layer B and the negative electrode layer B of the electroluminescent device; the static electric pattern display area comprises a charge generation layer D and a hole transport layer D; the anode layer A and the cathode layer A of the solar cell are respectively electrically connected to both ends of the hole transport layer D of the static electric pattern display area.
[0005] As a preferred technical scheme, the photoluminescent display area is provided with an OLED device or organic color-changing ink.
[0006] As a preferred technical scheme, the hole transport layer D of the static electric pattern display area is provided with an encapsulation layer D, the material of the encapsulation layer D is transparent inorganic transparent material or non-polar organic polymer material; the encapsulation layer D and the hole transport layer D are filled with one or more of carbon powder particles, selenium powder particles, particles ground from heavily doped inorganic semiconductor material or colored high-molecular polar resin particles; the particle size of the carbon powder particles, the selenium powder particles, the particles ground from heavily doped inorganic semiconductor material or the colored high-molecular polar resin particles is 0.01-10 μm.
[0007] As a preferred technical scheme, the anode layer A or the cathode layer A of the solar cell device extends to the vicinity of the static electric pattern display area; the encapsulation layer D is in a non-contact state and annularly distributed with the charge generation layer D and the hole transport layer D.
[0008] As a preferred technical scheme, the substrate is glass or polymer transparent substrate; or is various paper substrates or opaque substrates composed of paper materials and polymer materials.
[0009] As a preferred technical scheme, when the cathode layer A of the solar cell device is transparent, the solar cell device and the electroluminescent device are arranged in a laminated structure on one side surface of the substrate; the anode layer A of the solar cell device is connected to the positive electrode layer B of the electroluminescent device, and the cathode layer A of the solar cell device and the negative electrode layer B of the electroluminescent device share one electrode layer.
[0010] As a preferred technical scheme, when the substrate is of transparent material, the solar cell device is laminated on the substrate, and the electroluminescent device is laminated on the solar cell device, and the user obtains display information through the substrate.
[0011] As a preferred technical scheme, when the substrate is of opaque material, the electroluminescent device is laminated on the substrate, and the solar cell device is laminated on the electroluminescent device, and the user obtains display information through the anode layer A side of the solar cell device.
[0012] As a preferred technical scheme, the solar cell device and the electroluminescent device are oppositely arranged on the front and back surfaces of the substrate, and the solar cell device and the electroluminescent device are connected through the FPC.
[0013] As a preferred technical scheme, the anti-fake electronic device is packaged by metal or alloy sheet, glass or organic polymer material, and the device life is prolonged.
[0014] The present application has the following technical effects relative to the prior art: (1) the present application integrates the solar cell device and the electroluminescent display device on one electronic device, and when the product authenticity is verified, in the sunny day, the solar cell can absorb enough light energy to generate electricity and drive the electroluminescent device to emit light and display by using the converted electric energy, and the anti-fake pattern display is realized when the device surface is irradiated by a common flashlight in the indoor lighting condition; (2) in order to realize a higher level of anti-fake function, the electronic device is also provided with an advanced function such as a photoluminescent display area and a static electric pattern display area, the photoluminescent display area is provided with an OLED device structure or uses organic color-changing ink, and when it is irradiated by short-wave ultraviolet light, colored light greater than the absorption wavelength of light, such as red light or green light, will be excited; any non-light-transmitting pattern is attached to the surface of the static electric pattern display area, the solar cell is irradiated by a light source with an illuminance of 1000 Lux, at the same time, the pattern of the static electric display area covering is irradiated by UV light, then the UV light and the covering are removed, and the anti-fake device is turned upside down or reversed, at this time, the static electric display area will present the same pattern as the covering, and a higher level of anti-fake function is realized. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 A structure diagram of an anti-fake electronic device according to an embodiment of the present application is provided.
[0016] Figure 2 A structure diagram of the static electric pattern display area and the solar cell device according to an embodiment of the present application is provided.
[0017] Figure 3 Another structure diagram of the static electric pattern display area and the solar cell device according to an embodiment of the present application is provided.
[0018] Figure 4 A structure schematic diagram of the solar cell device and the electroluminescent device arranged in the same plane according to an embodiment of the present application;
[0019] Figure 5 Another structure schematic diagram of the solar cell device and the electroluminescent device arranged in the same plane according to an embodiment of the present application;
[0020] Figure 6 A structure schematic diagram of the solar cell device and the electroluminescent device arranged in the same plane and packaged according to an embodiment of the present application;
[0021] Figure 7 Another structure schematic diagram of the solar cell device and the electroluminescent device arranged in the same plane and packaged according to an embodiment of the present application;
[0022] Figure 8 A structure schematic diagram of the solar cell device and the electroluminescent device arranged in the same plane and stacked according to an embodiment of the present application;
[0023] Figure 9 Another structure schematic diagram of the solar cell device and the electroluminescent device arranged in the same plane and stacked according to an embodiment of the present application;
[0024] Figure 10 A structure schematic diagram of the solar cell device and the electroluminescent device connected together by FPC in a back-to-back or back-to-face manner according to an embodiment of the present application;
[0025] Figure 11 A structure schematic diagram of the solar cell device and the electroluminescent device connected together by FPC in a horizontal adjacent arrangement according to an embodiment of the present application;
[0026] Explanation of reference signs
[0027] 1 - substrate;
[0028] 11 - A region; 11 '- solar cell device; 111 - anode layer A; 112 - hole transport layer A; 113 - active layer A; 114 - electron transport layer A; 115 - cathode layer A;
[0029] 12 - B region; 12 '- electroluminescent device; 121 - positive electrode layer B; 122 - hole injection layer B; 123 - hole transport layer B; 124 - light-emitting layer B; 125 - electron transport layer B; 126 - electron injection layer B; 127 - negative electrode layer B;
[0030] 13 - C region;
[0031] 14-D region; 14'-electrostatic pattern display region; 141-charge generation layer D; 142-hole transport layer D; 143-encapsulation layer D; 144-particle; 145-switch;
[0032] 2-encapsulation layer;
[0033] 3-FPC. DETAILED DESCRIPTION
[0034] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described below in connection with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.
[0035] In the description of the present application, it should be understood that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0036] Example
[0037] As Figure 1 shown, a schematic diagram of an electronic device structure for anti-counterfeiting is provided in an embodiment of the present application. The electronic device includes a substrate 1, which includes an A region 11, a B region 12, a C region 13 and a D region 14.
[0038] A solar cell device 11' is arranged in the A region 11, and the solar cell device 11' includes an anode layer A111, a hole transport layer A112, an active layer A113, an electron transport layer A114 and a cathode layer A115 arranged in layers.
[0039] The solar cell includes, but is not limited to, (OPV), perovskite solar cell, DSC (dye-sensitized) solar cell, antimony sulfide (Sb2S3) solar cell or other photovoltaic layers that can effectively absorb and efficiently convert 300nm-800nm wavelength band. The solar cell can exhibit different colors (red, orange, yellow, green, cyan, blue, purple, etc.) depending on the selected photovoltaic material system.
[0040] An electroluminescent device 12' is provided in the B region 12, and the electroluminescent device 12' includes a positive electrode layer B121, a hole injection layer B122, a hole transport layer B123, a light emitting layer B124, an electron transport layer B125, an electron injection layer B126, and a negative electrode layer B127, which are stacked.
[0041] The anode layer A111 and the cathode layer A115 of the solar cell device 11' are connected to the positive electrode layer B121 and the negative electrode layer B127 of the electroluminescent device 12', respectively. When the product authenticity is verified, the solar cell can absorb sufficient light energy to generate electricity and drive the electroluminescent device 12' to emit light using the converted electrical energy when the device surface is irradiated by a common flashlight in a sunny day indoors near a transparent glass window or under indoor lighting conditions.
[0042] The solar cell device 11' and the electroluminescent device 12' are provided on the same surface of the substrate 1 or on the front and back surfaces of the substrate 1.
[0043] The driving voltage of the electroluminescent device 12' is generally in the range of 3V to 15V depending on the size and brightness of the light emitting area. The solar cell device 11' as the driving power source of the electroluminescent device 12' can drive the electroluminescent device 12' and achieve normal display effect of the electroluminescent device 12' only by using the electrical power generated by itself under light irradiation without setting a complex driving circuit. However, the open circuit voltage (Voc) generated by a general single-junction solar cell device 11' after light irradiation is only 0.5V to 1.5V. Therefore, in order to achieve normal operation of the electroluminescent device 12' without adding a complex boost circuit, the performance of the electroluminescent device 12' must be evaluated in advance to obtain accurate driving performance (current, voltage) requirements, and then the structure of the solar cell device 11' can be set in a multi-junction series mode according to the voltage requirements of the electroluminescent device 12'. The design of the series number (N) of the solar cell device 11' needs to be based on the Voc data generated by various types of solar cells under 30000Lux light irradiation, and the N value is calculated according to the following formula: N = V OLED / [Voc(min)*FF]. Wherein, V OLED is the driving voltage of the electroluminescent device 12'; N is the preset series number of the solar cell; Voc(min) is the minimum value of the open circuit voltage of the solar cell under 30000Lux light irradiation; and FF is the fill factor of the solar cell under 30000Lux light irradiation. The Voc data under 30000Lux irradiance is selected because the solar cell can only generate a high enough current density Jsc(mA / cm 2Simultaneously, to obtain a sufficiently large current, the total area of the solar cell must be set according to the maximum output power formula of the solar cell, so that the Pmax data matches the power consumption of the electroluminescent device 12' when it is lit (≥50 Ω·s). Furthermore, the area of each section of the N-junction solar cell should be set as evenly as possible to obtain the driving conditions that satisfy the operation of the electroluminescent device 12'.
[0044] The formula for calculating the electrical energy (maximum output power) of solar cell device 11' is: Pmax = Vmax * Imax = Voc * Isc * FF = OCV * Jsc * Spv * FF. Where V... max I is the maximum output voltage of the solar cell; max Voc is the maximum output current of the solar cell; Ic is the open-circuit voltage of the solar cell; sc J is the short-circuit current of the solar cell; sc Spv is the current density output by the solar cell; FF is the effective photovoltaic area of a single-junction cell or the sum of the areas of all photovoltaic cells in a multi-junction cell; and FF is the fill factor of the solar cell. Region C 13 is a photoluminescent display area, preferably containing OLED devices or organic color-changing ink. When irradiated with short-wave ultraviolet light, it will emit colored light, such as red or green light, with a wavelength longer than the absorbed light wavelength.
[0045] Region D 14 is an electrostatic pattern display area 14', which includes a charge generation layer D141 and a hole transport layer D142; the anode layer A111 and cathode layer A115 of the solar cell are electrically connected to the two ends of the hole transport layer D142 of the electrostatic pattern display area 14'.
[0046] like Figure 2 The diagram shown is a structural schematic of the electrostatic pattern display area 14' and the solar cell device 11' proposed in an embodiment of the present invention.
[0047] In actual use, a switch 145 needs to be preset. When verifying authenticity, the cathode layer A115 of the solar cell device 11' needs to be turned on. After the anti-counterfeiting verification is completed, the switch is switched to turn on the anode layer A111 of the solar cell device, and a secondary light illumination method is used to eliminate the anti-counterfeiting pattern generated during the verification process.
[0048] Preferably, the hole transport layer D142 of the electrostatic pattern display area 14' is externally provided with an encapsulation layer D143, the material of the encapsulation layer D143 is transparent inorganic transparent material or non-polar organic polymer material; the encapsulation layer D143 and the hole transport layer D142 are filled with one or more of carbon powder particles 144, selenium powder particles 144, particles 144 ground from heavily doped inorganic semiconductor material or colored polymer polar resin particles 144; the particle size of the carbon powder particles 144, the selenium powder particles 144, the particles 144 ground from heavily doped inorganic semiconductor material or the colored polymer polar resin particles 144 is 0.01-10 μm.
[0049] Preferably, the anode layer A111 or the cathode layer A115 of the solar cell device 11' extends to be close to the electrostatic pattern display area 14'; the encapsulation layer D143 and the charge generation layer D141 and the hole transport layer D142 are in a non-contact annular distribution.
[0050] The display principle of the electrostatic pattern display area 14' is as follows: when the solar cell device 11' is irradiated, the solar cell device 11' generates electrons and holes under the photovoltaic effect, the electrons flow to the hole transport layer D142 of the electrostatic pattern display area 14' through the preset path via the cathode layer A115, and the surface of the hole transport layer D142 is covered with negative charges; and the holes generated by the solar cell device 11' flow to the anode layer A111, so that the one or more particles 144 filled between the encapsulation layer D143 and the hole transport layer D142, i.e. the carbon powder particles 144, the selenium powder particles 144, the particles 144 ground from the heavily doped inorganic semiconductor material, or the colored high-molecular polar resin particles 144, are positively charged. Then the surface of the electrostatic pattern display area 14', i.e. one side of the hole transport layer D142, is shielded with any pattern, the pattern is vertically irradiated with UV light, the charge generation layer D141 of the electrostatic pattern display area 14' in the unshielded area of the pattern generates excitons under the irradiation of the UV light, and dissociation occurs at the interface between the hole transport layer D02 and the charge generation layer D141, the positive charges flow to the surface of the hole transport layer D02 via the inside of the hole transport layer D02, and recombine with the electrons in the UV light irradiation area. Then the device is shaken up and down and left and right by hand, so that the one or more particles 144, i.e. the carbon powder particles 144, the selenium powder particles 144, the particles 144 ground from the heavily doped inorganic semiconductor material, or the colored high-molecular polar resin particles 144, encapsulated in the high-molecular material and positively charged, fully contact the surface of the hole transport layer D142, and are adsorbed by the uncombined negative charges in the pattern shielded area, forming a pattern opposite to the shielding shape. After the verification is completed, the switch 145 needs to be manually switched, and the anode layer A111 of the solar cell device 11' is connected to the hole transport layer D142 under light irradiation, the holes of the anode layer A111 flow to the surface of the hole transport layer D142, neutralize the residual electrons in the pattern area, the one or more particles 144, i.e. the carbon powder particles 144, the selenium powder particles 144, the particles 144 ground from the heavily doped inorganic semiconductor material, or the colored high-molecular polar resin particles 144, return to the non-polar state, and are randomly distributed to the annular electrode area of the electrostatic pattern display area 14' again.
[0051] As Figure 3 shown, another structural schematic diagram of the electrostatic pattern display area 14' and the solar cell device 11' according to the embodiment of the present application is shown.
[0052] In actual use, a switch 145 also needs to be preset, the anode layer A111 of the solar cell device 11' needs to be connected when verifying the authenticity; and after the anti-fake verification is completed, the cathode layer A115 of the solar cell device needs to be connected again, and the anti-fake pattern generated in the verification process is eliminated by using secondary light irradiation. The display principle is similar to Figure 2 the structure.
[0053] AsFigure 4 and Figure 5 Fig. 1 and Fig. 2 show two structural schematic diagrams of the solar cell device 11' and the electroluminescent device 12' in the same plane according to the embodiments of the present application.
[0054] When the electroluminescent device 12' is a single Duty driven static display device, it only displays for the preset pattern, so the manufacturing process and requirements of the device are relatively simple. If the device only requires a one-time confirmation of the product authenticity through the display pattern in a short period of time, the manufacturing requirements of the device will be lower, and even the back cover encapsulation can not be performed, and the prepared device can be directly encapsulated in a transparent packaging bag with desiccant and vacuum preservation.
[0055] Preferably, the base material of the electroluminescent device 12' can be selected from, but not limited to, transparent glass, polymer, or opaque paper base material or paper and polymer composite material according to different use requirements. The device structures are different when transparent base material and opaque base material are used, such as Figure 4 , that is, the electroluminescent device 12' is made of transparent base material; and Figure 5 , that is, the electroluminescent device 12' is made of opaque base material.
[0056] As shown in Figure 4 , when the transparent base material is used, the anode layer A111 of the solar cell device 11' and the positive electrode layer B121 of the electroluminescent device 12' also use transparent electrodes and are directly arranged on the surface of the transparent base material. Preferably, the anode layer A111 of the solar cell device 11' and the positive electrode layer B121 of the electroluminescent device 12' also use the same material, including but not limited to TCO, graphene, carbon nanotube, thin layer of metal element or alloy material, or high conductivity organic polymer (such as PEDOT:PSS) and the like.
[0057] The manufacturing process includes the following steps: manufacturing the hole transport layer A112 on the surface of the anode layer A111 of the solar cell device 11', manufacturing the hole injection layer B122 and the hole transport layer B123 for hole injection and transport on the surface of the positive electrode layer B121 of the electroluminescent device 12' in sequence; continuing to manufacture the active layer A113 on the surface of the hole transport layer A112 of the solar cell device 11', and continuing to manufacture the light-emitting layer B124 on the surface of the hole transport layer B123 of the electroluminescent device 12'; then, manufacturing the electron transport layer A114 and the electron transport layer B125 on the surface of the active layer A113 of the solar cell device 11' and the light-emitting layer B124 of the electroluminescent device 12' respectively, and manufacturing an electron injection layer B126 on the surface of the electron transport layer B125 of the electroluminescent device 12'. Finally, using a metal with a thickness greater than 20 nm as the cathode layer A115 and the negative electrode layer B127, covering the surface of the electron transport layer A114 or the electron injection layer B126 to complete the manufacturing of the functional part of the device. When the device has a high requirement on the service life, the anti-fake device needs to be packaged or a water vapor barrier film layer is covered on the surface of the cathode layer A115 and the negative electrode layer B127. The film layer can be transparent or opaque, and the organic material can have effective performance when stored for a long time in different environments.
[0058] As shown in Figure 5 When an opaque substrate is used, the device is manufactured in the opposite order, that is, the cathode layer A115 and the negative electrode layer B127 are manufactured first, and then the other layers are manufactured as shown in the figure. At this time, the anode layer A111 and the positive electrode layer B121 side can only be packaged with transparent materials to achieve effective water vapor barrier.
[0059] As shown in Figure 6 and Figure 7 The solar cell device 11' and the electroluminescent device 12' of the embodiment of the present application are arranged in the same plane and packaged in two structures as shown in the figures.
[0060] Preferably, if it is required that the anti-fake device can still display patterns and perform multiple anti-fake verifications after long-term storage, the anti-fake device needs to be actually packaged, and a packaging layer 2 is arranged. The packaging layer 2 is packaged by using a metal or alloy sheet, glass, an organic polymer material, or packaged by using ALD, TFE and other processes, or packaged by using a combination of materials and processes, so as to ensure that the performance of the electroluminescent device 12' and the solar cell will not fail due to long-term exposure to the atmosphere.
[0061] As shown in Figure 8 and Figure 9As shown in the drawings, the solar cell device 11' and the electroluminescent device 12' are arranged in a stacked structure on the same plane.
[0062] Preferably, when the cathode layer A115 of the solar cell device 11' is transparent, the solar cell device 11' and the electroluminescent device 12' are arranged in a stacked series structure on one side of the substrate 1; the anode layer A111 of the solar cell device 11' is connected to the positive electrode layer B121 of the electroluminescent device 12', and the cathode layer A115 of the solar cell device 11' and the negative electrode layer B127 of the electroluminescent device 12' share an electrode layer.
[0063] As shown in the drawings, preferably, when the substrate 1 is transparent, the solar cell device 11' is arranged on the substrate 1, and the electroluminescent device 12' is arranged on the solar cell device 11', so that the user can obtain display information through the substrate 1. Figure 8
[0064] As shown in the drawings, preferably, when the substrate 1 is transparent, the solar cell device 11' is arranged on the substrate 1, and the electroluminescent device 12' is arranged on the solar cell device 11', so that the user can obtain display information through the substrate 1. Figure 9
[0065] Preferably, when the electroluminescent device 12' and the solar cell device 11' are arranged on the same side of the substrate 1, the electroluminescent device 12' and the solar cell device 11' are preferably made of the same or similar structure, which facilitates the simplification of manufacturing process and the improvement of production efficiency. Among them, the device structure of the small-molecule organic solar cell (OPV) is relatively similar to that of the electroluminescent device 12', so that the anode layer A111 and the positive electrode layer B121, the hole transport layer A112 and the hole transport layer B123, the electron transport layer A114 and the electron transport layer B125, and the cathode layer A115 and the negative electrode layer B127 can be made of the same process and material, greatly simplifying the process.
[0066] As shown in the drawings, preferably, when the substrate 1 is transparent, the solar cell device 11' is arranged on the substrate 1, and the electroluminescent device 12' is arranged on the solar cell device 11', so that the user can obtain display information through the substrate 1. Figure 10 As shown, when the electroluminescent device 12' and the solar cell device 11' are respectively disposed on both sides of the substrate 1, the manufacturing process is relatively complex. The two devices are fabricated separately, and after completion, they are bonded together back to back or face to face. The solar cell device 11' and the electroluminescent device 12' are connected by conductive tape or FPC3 and other connecting components. The combined device made in this way has a relatively small external size.
[0067] like Figure 11 As shown, the solar cell device 11' and the electroluminescent device 12' can also be arranged side by side in a horizontal manner, and assembled by connecting the solar cell device 11' and the electroluminescent device 12' with connecting components such as conductive tape or FPC3. The combined device made in this way has a relatively large external size.
Claims
1. An anti-counterfeiting electronic device, characterized in that, The system includes a substrate comprising regions A, B, C, and D. A solar cell device is disposed within region A, an electroluminescent device is disposed within region B, region C is a photoluminescent display area, and region D is an electrostatic pattern display area. The solar cell device and the electroluminescent device are disposed on the same surface of the substrate or opposite to each other on the front and back sides of the substrate. The solar cell device includes a stacked anode layer A, a hole transport layer A, an active layer A, an electron transport layer A, and a cathode layer A. The electroluminescent device... The device includes a positive electrode layer B, a hole injection layer B, a hole transport layer B, a light-emitting layer B, an electron transport layer B, an electron injection layer B, and a negative electrode layer B stacked together. The anode layer A and cathode layer A of the solar cell device are respectively connected to the positive electrode layer B and the negative electrode layer B of the electroluminescent device. The electrostatic pattern display area includes a charge generation layer D and a hole transport layer D. The anode layer A of the solar cell is electrically connected to the hole transport layer D of the electrostatic pattern display area, or the cathode layer A of the solar cell is electrically connected to the electron transport layer D of the electrostatic pattern display area. An encapsulation layer D is provided outside the hole transport layer D of the electrostatic pattern display area. The encapsulation layer D is made of a transparent inorganic transparent material or a non-polar organic polymer material. The space between the encapsulation layer D and the hole transport layer D is filled with one or more of the following: carbon powder particles, selenium powder particles, particles ground from heavily doped inorganic semiconductor materials, or colored polar polymer resin particles. The anode layer A or cathode layer A of the solar cell device extends close to the electrostatic pattern display area; the encapsulation layer D is arranged in a ring shape with the charge generation layer D and the hole transport layer D in a non-contact state.
2. The anti-counterfeiting electronic device according to claim 1, characterized in that, The particle size of the carbon powder particles, selenium powder particles, particles ground from heavily doped inorganic semiconductor materials, or colored polar polymer resin particles is 0.01 to 10 μm.
3. The anti-counterfeiting electronic device according to claim 1, characterized in that, The substrate is a transparent glass or polymer substrate; or an opaque substrate made of various paper substrates or a composite of paper and polymer materials.
4. The anti-counterfeiting electronic device according to claim 1, characterized in that, When the cathode layer A of the solar cell device is made of a transparent material, the solar cell device and the electroluminescent device are stacked in a layered structure and disposed on one side surface of the substrate; the anode layer A of the solar cell device is connected to the positive electrode layer B of the electroluminescent device, and the cathode layer A of the solar cell device and the negative electrode layer B of the electroluminescent device share a common electrode layer.
5. The anti-counterfeiting electronic device according to claim 4, characterized in that, When the substrate is made of a transparent material, the solar cell device is stacked on the substrate, and the electroluminescent device is stacked on the solar cell device, allowing the user to obtain display information through the substrate.
6. The anti-counterfeiting electronic device according to claim 4, characterized in that, When the substrate is made of an opaque material, the electroluminescent device is stacked on the substrate, and the solar cell device is stacked on the electroluminescent device. The user obtains display information through the anode layer A side of the solar cell device.
7. The anti-counterfeiting electronic device according to claim 1, characterized in that, The solar cell device and the electroluminescent device are disposed opposite to each other on the front and back sides of the substrate, and the solar cell device and the electroluminescent device are connected by an FPC.
8. An anti-counterfeiting electronic device according to any one of claims 1-7, characterized in that, The anti-counterfeiting electronic devices are encapsulated in metal or alloy sheets, glass, or organic polymer materials to extend the device's lifespan.
Citation Information
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