Electronic table card based on organic photovoltaic cell

Abstract

The utility model relates to the technical field of electronic table cards, in particular to an electronic table card based on an organic photovoltaic cell. According to the electronic table card, the energy storage module is charged through the organic photovoltaic battery assembly to achieve continuous power supply to the electronic table card, and convenience, reliability, low carbon and environmental protection of the electronic table card are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic table cards, in particular to an electronic table card based on an organic photovoltaic cell. Background Art

[0002] Conventional table cards are often printed on paper or acrylic, and are only used to display names and identify attendees. These cards are often made on the fly, often using printing, color printing, or engraving methods. They have a relatively simple appearance and are disposable after use. This wastes significant manpower and resources for large numbers of attendees, is environmentally unfriendly, and has a high breakage rate. Changes to the displayed content require reprinting, lacking flexibility and timeliness.

[0003] Currently, electronic tabletop displays are typically powered by traditional batteries, which need to be replaced after a few months to over a year. This wastes resources and pollutes the environment, while also increasing labor costs. Electronic tabletop displays are primarily used indoors in low-light environments. Photovoltaic cells convert indoor sunlight into electricity, providing a sustainable energy source. Traditional crystalline silicon cells have advantages in outdoor power generation and are widely used, but their photovoltaic efficiency is low under indoor lighting conditions, making them inadequate for use in electronic tabletop displays. Among newer photovoltaic cells, perovskite photovoltaic cells offer high indoor light conversion efficiency, but they contain soluble heavy metal lead, posing safety concerns for users in indoor environments. In contrast, organic photovoltaic cells offer high photovoltaic efficiency and excellent stability under indoor light. Furthermore, the cells themselves contain no highly toxic substances, posing minimal risks to the environment and users. Therefore, organic photovoltaic cells offer a promising approach to developing a new, green, and high-performance electronic tabletop display. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide an electronic table card based on organic photovoltaic cells, which charges the energy storage module of the electronic table card through organic photovoltaic cells to achieve continuous power supply for the electronic table card, greatly improving the convenience, reliability and low-carbon green environmental protection of the electronic table card.

[0005] The utility model provides an electronic table card based on an organic photovoltaic cell. The electronic table card includes a power supply management module, the power supply management module includes an energy storage module and an organic photovoltaic cell module, the organic photovoltaic cell module is electrically connected to the energy storage module, the energy storage module receives and stores electrical energy from the organic photovoltaic cell module, and the organic photovoltaic cell module includes an organic photovoltaic cell assembly.

[0006] Furthermore, the organic photovoltaic cell module further comprises a power management device, the power management device is electrically connected to the organic photovoltaic cell assembly, and the energy storage module is electrically connected to the power management device.

[0007] Furthermore, the energy storage module includes an electric energy storage device, the electric energy storage device is selected from a battery or a capacitor, and the electric energy storage device is electrically connected to the power management device.

[0008] Furthermore, the power management device includes a power management chip, and the energy storage device is selected from a capacitor.

[0009] Preferably, the electronic table card based on organic photovoltaic cells further includes: a table card base, a table card shell, a display component and a control component. The table card shell is frame-shaped and vertically mounted on the table card base. The display component is provided with two display modules, which are respectively located on the front and back surfaces of the table card shell. The control component, power management device and energy storage module are arranged in the table card base, and the organic photovoltaic cell component is distributed at least on the upper surface of the table card base.

[0010] Furthermore, the control component is electrically connected to the display component, and the energy storage module is electrically connected to the control component.

[0011] Furthermore, the control component includes a display driver module, a processor module and a communication module; the communication module is used to receive external display control commands and modify the display module content; the display driver module is electrically connected to the processor module, and the display driver module can convert the control commands into the driving signals required by the display module.

[0012] In a specific embodiment, the display module is selected from a low-power display screen.

[0013] Preferably, the organic photovoltaic cell assembly comprises n organic photovoltaic cell units, the n organic photovoltaic cell units are connected in series, and n≥2.

[0014] In one embodiment, the organic photovoltaic cell unit includes a lower encapsulation layer, an anode layer, an anode buffer layer, a photoactive layer, a cathode buffer layer, a cathode layer, and an upper encapsulation layer stacked in sequence.

[0015] Beneficial effects:

[0016] The electronic table cards described in this utility model use organic photovoltaic cell components to function, and their advantages are:

[0017] 1) Organic photovoltaic cells exhibit excellent photoelectric conversion efficiency under the radiation intensity of indoor light. Currently, they have achieved a photoelectric conversion efficiency of over 30%, far exceeding other types of photovoltaic cells (such as single / amorphous silicon cells). At the same time, organic photovoltaic cell modules are non-toxic, stable, and easy to manufacture, and can be widely used for power supply in indoor scenarios.

[0018] 2) Compared with the traditional button batteries and dry batteries commonly used today, organic photovoltaic cells do not require frequent replacement, thus saving overall usage costs and a large amount of labor costs. At the same time, traditional batteries have environmental pollution and recycling issues, while organic photovoltaic cells have a long life and are environmentally friendly, greatly improving convenience, reliability, lightweight, and low-carbon green environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is one of the three-dimensional images of the electronic table card based on organic photovoltaic cells;

[0021] Figure 2 This is the second 3D image of an electronic table sign based on organic photovoltaic cells;

[0022] Figure 3 This is a front view of the electronic table sign based on organic photovoltaic cells;

[0023] Figure 4 This is a schematic block diagram of an electronic table sign based on organic photovoltaic cells;

[0024] Figure 5 Schematic diagram of the structure of an organic photovoltaic cell unit

[0025] Among them: 100-power supply management module; 101-energy storage module; 102-organic photovoltaic cell module; 103-organic photovoltaic cell assembly; 200-table sign base; 300-table sign shell; 400-display assembly; 500-control assembly; 10-lower packaging layer; 11-anode layer; 12-anode buffer layer; 13-photoactive layer; 14-cathode buffer layer; 15-cathode layer; 16-upper packaging layer. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] The utility model provides an electronic table card based on an organic photovoltaic cell. The electronic table card includes a power supply management module 100, which includes an energy storage module 101 and an organic photovoltaic cell module 102. The organic photovoltaic cell module 102 is electrically connected to the energy storage module 101. The energy storage module 101 receives and stores electrical energy from the organic photovoltaic cell module 102. The organic photovoltaic cell module 102 includes an organic photovoltaic cell assembly 103.

[0029] According to the electronic table sign based on organic photovoltaic cells described in the present invention, the organic photovoltaic cell component 103 is used to convert the light energy of indoor light into electrical energy; the energy storage module 101 is used to store the electrical energy generated by the organic photovoltaic cell component 103 and power the electronic table sign when it is working.

[0030] When the organic photovoltaic cell module 102 only includes the organic photovoltaic cell component 103 , the organic photovoltaic cell component 103 is electrically connected to the energy storage module 101 .

[0031] In one embodiment, the organic photovoltaic cell module 102 further includes a power management device, and the power management device is electrically connected to the organic photovoltaic cell assembly 103 , and the energy storage module 101 is electrically connected to the power management device.

[0032] The power management device can maximize the transmission of electric energy collected from the organic photovoltaic components and stably store the electric energy in the energy storage module 101, thereby providing continuous, reliable and stable energy supply for the electronic table cards.

[0033] In a specific embodiment, the organic photovoltaic cell module 102 includes at least two organic photovoltaic cell components 103 . The at least two organic photovoltaic cell components 103 may be electrically connected to the power management device in series or in parallel.

[0034] Furthermore, the energy storage module 101 includes an electric energy storage device; the electric energy storage device is selected from a battery or a capacitor, and the electric energy storage device is electrically connected to the power management device.

[0035] Specifically, the battery is preferably selected from lithium batteries; further, the lithium battery is selected from lithium titanate batteries.

[0036] In one embodiment, the energy storage device is a capacitor because the organic photovoltaic cell module has high photoelectric conversion efficiency under indoor light conditions, and the power supply energy can continuously power the electronic table card. Using a capacitor as energy storage can meet the usage requirements.

[0037] In one embodiment, the power management device includes a power management chip, and the energy storage device is selected from a capacitor.

[0038] Preferably, the electronic table card based on organic photovoltaic cells further includes: a table card base 200, a table card shell 300, a display component 400 and a control component 500. The table card shell 300 is frame-shaped and vertically mounted on the table card base 200. The display component 400 is provided with two display modules, which are respectively located on the front and back surfaces of the table card shell 300. The control component 500, the power management device and the energy storage module 101 are arranged in the table card base 200. The organic photovoltaic cell component 103 is distributed at least on the upper surface of the table card base 200.

[0039] Specifically, the control component 500 is electrically connected to the display component 400 and is used to control information display on the display module.

[0040] The energy storage module 101 is electrically connected to the control component 500 , and the energy storage module 101 provides power to the display component 400 and the control component 500 .

[0041] Furthermore, the control component 500 includes a display driver module, a processor module and a communication module; the communication module is used to receive external display control commands and modify the display module content; the display driver module is electrically connected to the processor module, and the display driver module can convert the control commands into the driving signals required by the display module.

[0042] Furthermore, the communication module is a wireless communication module.

[0043] Further, the processor module employs a microcontroller.

[0044] In an embodiment, the display module 400 is selected from a low-power display screen. Preferably, the display module 400 is selected from an electronic paper display screen, a cholesteric liquid crystal display screen, an electrochromic display screen, etc., but is not limited thereto.

[0045] In an embodiment, the organic photovoltaic cell assembly 103 is distributed on the upper surface of the table card base 200.

[0046] In a specific embodiment, the organic photovoltaic cell module 102 comprises at least two organic photovoltaic cell assemblies 103, and the at least two organic photovoltaic cell assemblies 103 are located on the upper surface of the table card base 200.

[0047] Further, according to the electronic table card based on the organic photovoltaic cell, the plurality of organic photovoltaic cell assemblies 103 can be electrically connected to the power management device in a series or parallel manner.

[0048] Specifically, the power management device has only one.

[0049] In another embodiment, the organic photovoltaic cell assembly 103 is distributed on the upper surface of the table card base 200 and the surface of the table card shell 300. The position and size of the organic photovoltaic cell assembly 103 on the upper surface of the table card base 200 are set according to actual needs.

[0050] Further, when the organic photovoltaic cell assembly 103 is distributed on the surface of the table card shell 300, preferably, the organic photovoltaic cell assembly 103 is located on the outer surface of the side of the table card shell 300 close to the table card base 200.

[0051] In a preferred embodiment, the organic photovoltaic cell assembly 102 comprises n organic photovoltaic cell units, the n organic photovoltaic cell units are connected in series, and n≥2. Preferably, n≥3; preferably, n≥4; preferably, n≥5; preferably, n≥6; preferably, n≥7; preferably, n≥8; the number of organic photovoltaic cell units in the organic solar cell assembly 102 can be specifically selected according to the performance requirements of the product application end.

[0052] In an embodiment, the organic photovoltaic cell unit comprises a lower encapsulation layer 10, an anode layer 11, an anode buffer layer 12, a photoactive layer 13, a cathode buffer layer 14, a cathode layer 15, and an upper encapsulation layer 16 which are sequentially stacked.

[0053] It should be noted that in order to improve the performance of the solar cell module, the organic photovoltaic cell unit can further comprise other functional layers, including but not limited to hole injection layer, electron injection layer, hole blocking layer, electron blocking layer, etc.

[0054] In an embodiment, the lower encapsulation layer 10 and the upper encapsulation layer 16 are independently selected from glass or flexible structure.

[0055] The flexible structure can include a film in single layer or multi-layer form, such as polyethylene terephthalate (PET), polyether ether ketone (PEEK), polyether sulfone resin, polyethylene naphthalate (PEN), polycarbonate, polyimide (PI), polyacrylate (PA), polypropylene adipate, polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), poly-p-xylylene, polydimethylsiloxane, thermoplastic polyurethane (TPU), or combinations thereof, but not limited thereto, and other flexible structures commonly used in the art can also be used. Therefore, the lower encapsulation layer 10 and the upper encapsulation layer 16 can be rigid or flexible.

[0056] Preferably, a water and oxygen barrier layer of oxide layer, nitride layer, organic material layer, or combinations thereof is prepared on the flexible structure to improve the encapsulation effect. The water and oxygen barrier layer is located on the flexible structure and is on the opposite side of the organic photovoltaic cell module. In an embodiment, the lower encapsulation layer 10 can comprise one or more layers; the upper encapsulation layer 16 can comprise one or more layers. The selection of the materials and the number of layers of the upper and lower encapsulation layers is based on the material properties and the encapsulation effect on the organic photovoltaic module, and is not specifically limited.

[0057] In an embodiment, the organic photovoltaic cell module 102 is a rigid module.

[0058] Further, the lower encapsulation layer 10 is selected from glass; the upper encapsulation layer 16 is selected from glass or flexible structure.

[0059] In a specific embodiment, the lower encapsulation layer 10 and the upper encapsulation layer 16 are both selected from glass.

[0060] In another embodiment, the organic photovoltaic cell assembly 102 is a flexible assembly; the lower encapsulation layer 10 and the upper encapsulation layer 16 are both selected from flexible structures. At least one of the anode layer 11 and the cathode layer 15 is made of a transparent or semi-transparent material. Electrode materials may include metals such as silver (Ag), aluminum (Al), platinum (Pt), tungsten (W), copper (Cu), molybdenum (Mo), gold (Au), nickel (Ni) and palladium (Pd), magnesium (Mg), vanadium (V), chromium (Cr), zinc (Zn) or their alloys; materials with multilayer structures such as Al / Li, Al / BaF2 and Al / BaF2 / Ba, Al / Yb, etc.; conductive nanomaterials such as metal nanowires, nanoparticle slurries, graphene, carbon nanotubes, etc.; metal oxides such as zinc oxide, indium oxide, indium tin oxide (ITO) and indium zinc oxide (IZO); combinations of metals and oxides such as ZnO:Al or SnO2:Sb; and conductive polymers such as PEDOT:PSS (poly(3,4-ethylenedioxythiophene)) of poly(styrene sulfonic acid), polypyrrole and polyaniline, but are not limited thereto.

[0061] The photoactive layer 13 contains at least one donor organic material and one acceptor organic material.

[0062] In one embodiment, the donor organic material is selected from a polymer donor material; further, the polymer donor material is selected from PM6, PM7, PBDB-T, PTQ10, PTQ11, D18, D18-Cl, PTO2, PB2, PB2F, PTVT-BT, PBQx-TCl ​​and other structures and their derivatives.

[0063] In one embodiment, the acceptor organic material is selected from fullerene acceptor materials and / or non-fullerene acceptor materials; further, the acceptor organic material is selected from N3, Y6, L8-BO, ITIC, IT-4F, ITC-2Cl, BTP-eC9, HDO-4Cl, BTP-4Cl-8, PY-T, PY2F-T, PY-IT, PY-SSe-V, PC 61 BM ([6,6]-phenyl C61 butyric acid methyl ester), PC 71 BM ([6,6]-phenyl C71 butyric acid methyl ester) and other structures and its derivatives.

[0064] Preferably, the photoactive layer 13 has a thickness selected from 80 nm to 400 nm.

[0065] Furthermore, the anode buffer layer 12 is made of a material selected from PEDOT:PSS, molybdenum oxide (MoO x ), vanadium oxide (V2O5), nickel oxide (NiO), tungsten oxide (WO x, preferably, x is selected from 2 or 3), small molecule self-assembly materials such as 2PACz, MeO-2PACz, etc., but not limited thereto.

[0066] Preferably, the thickness of the anode buffer layer 12 is selected from 3 nm to 40 nm.

[0067] Furthermore, the cathode buffer layer 14 material can be selected from metal complexes, metal oxides, metal salts, etc. with low work function, such as metal complexes of 8-hydroxyquinoline, complexes containing Alq3, metal complexes containing Liq, LiF, Ca, titanium oxide (TiO x ), zinc oxide (ZnO), cesium carbonate (Cs2CO3), etc.; it can also be a polymer material, such as PFN-Br or PFN or PDINN or PDINO or PNDIT-F3N-Br or PNDIT-F3N, etc., but not limited to this.

[0068] Preferably, the cathode buffer layer 14 has a thickness selected from 5 nm to 100 nm.

[0069] According to the electronic table card based on organic photovoltaic cells described in the utility model, indoor light is converted into electrical energy under an indoor light source environment through the organic photovoltaic cell component, wherein the electrical energy is stored in the energy storage module, and the energy storage module supplies power to the control component and the display component, thereby realizing the display of electronic table card information.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electronic table card based on an organic photovoltaic cell, characterized by: The electronic table card includes a power supply management module, which includes an energy storage module and an organic photovoltaic cell module. The organic photovoltaic cell module is electrically connected to the energy storage module. The energy storage module receives and stores electrical energy from the organic photovoltaic cell module. The organic photovoltaic cell module includes an organic photovoltaic cell assembly.

2. The electronic table card based on an organic photovoltaic cell according to claim 1, characterized in that: The organic photovoltaic cell module further comprises a power management device, wherein the power management device is electrically connected to the organic photovoltaic cell assembly, and the energy storage module is electrically connected to the power management device.

3. The electronic table card based on an organic photovoltaic cell according to claim 2, characterized in that: The energy storage module includes an electric energy storage device, which is selected from a battery or a capacitor, and is electrically connected to the power management device.

4. The electronic table card based on organic photovoltaic cells according to claim 3, characterized in that: The power management device includes a power management chip, and the electric energy storage device is selected from a capacitor.

5. The electronic table card based on an organic photovoltaic cell according to any one of claims 2 to 4, characterized in that: The electronic table card based on organic photovoltaic cells further includes: a table card base, a table card shell, a display component and a control component. The table card shell is frame-shaped and vertically installed on the table card base. The display component is provided with two display modules, and the two display modules are respectively located on the front and back surfaces of the table card shell. The control component, power management device and energy storage module are arranged in the table card base, and the organic photovoltaic cell component is distributed at least on the upper surface of the table card base.

6. The electronic table card based on an organic photovoltaic cell according to claim 5, characterized in that: The control component is electrically connected to the display component, and the energy storage module is electrically connected to the control component.

7. The electronic table card based on an organic photovoltaic cell according to claim 6, characterized in that: The control component includes a display driver module, a processor module and a communication module; the communication module is used to receive external display control commands and modify the display module content; the display driver module is electrically connected to the processor module, and the display driver module can convert the control commands into the driving signals required by the display module.

8. The electronic table card based on an organic photovoltaic cell according to claim 5, characterized in that: The display module is selected from a low-power display screen.

9. The electronic table card based on an organic photovoltaic cell according to claim 1, characterized in that: The organic photovoltaic cell assembly comprises n organic photovoltaic cell units, and the n organic photovoltaic cell units are connected in series, where n is greater than or equal to 2.

10. The electronic table card based on organic photovoltaic cells according to claim 9, characterized in that: The organic photovoltaic cell unit comprises a lower encapsulation layer, an anode layer, an anode buffer layer, a photoactive layer, a cathode buffer layer, a cathode layer and an upper encapsulation layer stacked in sequence.

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