Self-generating glass building material with display function

Abstract

The invention relates to the technical field of glass building materials, and discloses a self-generating glass building material with a display function, which comprises copper indium gallium selenide film self-generating glass; the LED display module array is adhered to the copper indium gallium selenium film self-generating electricity glass and is electrically connected with the copper indium gallium selenium film; the glass packaging layer is arranged on the surface of the LED display module array and is connected with the copper indium gallium selenide film self-generating glass in a sealing manner; a concave lens array is arranged on the surface facing the LED display module array; the surface of each concave lens is coated with a silver deposition layer and a composite layer formed by alternately growing titanium dioxide and silicon dioxide; the light-emitting surfaces of the LED lamp beads face the concave lens; and the LED control chip is electrically connected with the LED display module array. Incident light is focused through the concave lens array, the light is converged to the light-transmitting gaps on the two sides of the lamp strip or the non-shielding area of the power generation glass, and the light utilization rate is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of glass building materials, and in particular to a self - generating glass building material with a display function. Background Art

[0002] The existing transparent glass display screen with self - generating function realizes energy conservation through photovoltaic self - generation. However, once it is used as building exterior decorative glass on a large scale, since the LED lamp beads used for display inside will block the bottom self - generating glass, the power generation efficiency of the self - generating glass is low, which will affect its normal use.

[0003] Therefore, the existing technology still needs to be further improved and enhanced. Summary of the Invention

[0004] In view of the above - mentioned deficiencies of the existing technology, the purpose of the present invention is to provide a self - generating glass building material with a display function, aiming to improve the utilization rate of light by adopting a concave lens array, focusing incident light by the concave lens, and converging the light to the light - transmitting gaps on both sides of the LED lamp beads or the non - blocked area of the power - generating glass, thereby improving the power generation efficiency.

[0005] In the first aspect, the above - mentioned purpose of the present invention is achieved by the following technical solution: A self - generating glass building material with a display function, comprising: Copper indium gallium selenide thin - film self - generating glass; An LED display module array, the LED display module array is pasted on the light - incident surface of the copper indium gallium selenide thin - film power - generating glass and is electrically connected to the copper indium gallium selenide thin - film in the copper indium gallium selenide thin - film self - generating glass; A glass encapsulation layer, the glass encapsulation layer is arranged on the surface of the LED display module array and is hermetically connected to the copper indium gallium selenide thin - film self - generating glass; a concave lens array is arranged on the surface of the glass encapsulation layer facing the LED display module array; a reflective film is coated on the surface of each concave lens forming the concave lens array; the light - emitting surface of the LED lamp beads in the LED display module array faces the corresponding concave lens; the reflective film includes: a silver deposition layer, and a dielectric deposition layer deposited on the surface of the silver deposition layer; the dielectric deposition layer is a composite layer formed by alternating growth of titanium dioxide and silicon dioxide; An LED control chip, the LED control chip is electrically connected to the LED display module array and is used to control the display content and brightness of the LED display module array.

[0006] The following are the preferred technical solutions of the present invention, but do not limit the technical solutions provided by the present invention. Through the following preferred technical solutions, the purpose and beneficial effects of the present invention can be better achieved and realized.

[0007] As a preferred technical solution, for the self-powered glass building material with a display function, a grating is provided on the surface of the glass encapsulation layer facing away from the LED display module array, and the grating is a relief grating or a volume holographic grating.

[0008] As a preferred technical solution, for the self-powered glass building material with a display function, the self-powered glass building material with a display function further includes an energy storage module, and the energy storage module is electrically connected to the copper indium gallium selenide thin film in the copper indium gallium selenide thin film self-powered glass.

[0009] As a preferred technical solution, for the self-powered glass building material with a display function, the copper indium gallium selenide thin film self-powered glass is connected to an external power supply, and the external power supply is electrically connected to the LED display module array.

[0010] As a preferred technical solution, for the self-powered glass building material with a display function, the thickness of the silver deposition layer is 10 - 5 nm, and the thickness of the dielectric deposition layer is 1 - 2 μm.

[0011] As a preferred technical solution, for the self-powered glass building material with a display function, the adjustable period of the grating is 280 - 360 nm.

[0012] As a preferred technical solution, for the self-powered glass building material with a display function, the depth of the grating groove is 100 - 150 nm; the depth-to-width ratio of the grating groove is 1:2.

[0013] As a preferred technical solution, for the self-powered glass building material with a display function, the reflective film further includes an antioxidant protective layer deposited on the surface of the dielectric deposition layer, and the material of the antioxidant protective layer is aluminum trioxide.

[0014] As a preferred technical solution, for the self-powered glass building material with a display function, the refractive index n of the glass encapsulation layer is 1.8 - 2.2.

[0015] Beneficial effects: Compared with the prior art, the present invention uses a concave lens array to focus incident light, converges the light to the light-transmitting gaps on both sides of the light strip or the non-blocked area of the power generation glass, and improves the light utilization rate. At the same time, since the surface of the concave lens is coated with a reflective film, using the metal-dielectric composite structure of the reflective film, the synergistic effect of high visible light transmission and high infrared reflection (reducing the internal temperature) is achieved, greatly improving the comprehensive energy utilization rate of the self-powered glass building material with a display function. Description of the Drawings

[0016] Figure 1It is the front view of the self-powered glass building material with a display function provided by the present invention; Figure 2 is the side view of the self-powered glass building material with a display function provided by the present invention; Figure 3 It is the schematic diagram of the energy storage system of the self-powered glass building material with a display function provided by the present invention. Specific Embodiments

[0017] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments. To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way restricts the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0018] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. include" when used, it indicates the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0019] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0020] Such as Figures 1 to 2As shown in the figure, a self-powered glass building material with a display function provided by the present invention includes: a copper indium gallium selenide thin-film self-powered glass 10, an LED display module array 20 pasted on the light-incident surface of the copper indium gallium selenide thin-film self-powered glass 10 and electrically connected to the copper indium gallium selenide thin film 100 in the copper indium gallium selenide thin-film self-powered glass 10, a glass encapsulation layer 30 disposed on the surface of the LED display module array 20 and hermetically connected to the copper indium gallium selenide thin-film self-powered glass, and an LED control chip (not shown) electrically connected to the LED display module array and used to control the display content and brightness of the LED display module array. A concave lens array 300 is provided on the surface of the glass encapsulation layer 30 facing the LED display module array 20; a reflective film 40 is coated on the surface of each concave lens forming the concave lens array; the light-emitting surface of the LED lamp beads 200 in the LED display module array faces the corresponding concave lens; the reflective film 40 includes: a silver deposition layer 400, and a dielectric deposition layer 410 deposited on the surface of the silver deposition layer 400; the dielectric deposition layer 410 is a composite layer formed by alternating growth of titanium dioxide and silicon dioxide. It should be noted that the preparation of the reflective film is a conventional technique in the prior art and will not be elaborated here. The lens array corresponds to the LED display module array, that is, a concave lens is configured for each LED lamp bead. It is easy to understand that the number of concave lenses can also be configured according to actual design requirements.

[0021] In the present invention, the self-powered glass adopts CIGS (copper indium gallium selenide) thin-film technology. Compared with cadmium telluride thin-film solar glass, it does not contain heavy metal cadmium, has high light transmittance, and is easy to adapt to lighting requirements; it has good flexibility and is also suitable for special-shaped buildings, such as curved curtain walls; at the same time, it has high photoelectric conversion efficiency (the photoelectric conversion efficiency is greater than 23.64%, and the low-light power generation efficiency > 90%), can provide clean energy for buildings, realize partial power self-sufficiency of buildings, reduce dependence on traditional energy, and reduce carbon emissions. The LED display module is integrated through optical glue (the LED light strip in the display module is pasted on the surface of the self-powered glass through optical glue), and a microlens array is prepared by photolithography technology on the inner side of the glass cover plate above the LED light strip. The microlenses focus the incident light and converge the light to the light-transmitting gaps on both sides of the light strip or the non-occluded area of the power generation glass, improving the light utilization rate.

[0022] Furthermore, the self-powered glass building material can be connected to a photovoltaic power generation energy storage system. On the basis of retaining the high-efficiency photoelectric conversion function of the CIGS solar glass, the glass building material is integrated with an LED display module, enabling it to have an information display function, thus meeting the requirements of modern buildings for aesthetics and intelligence. After being connected to the photovoltaic power generation energy storage system, it can maximize the realization of green lighting and help reduce building carbon emissions.

[0023] In one implementation of the present invention, an inclined rectangular relief grating or a volume holographic grating (not shown) is provided on the surface of the glass encapsulation layer 30 facing away from the LED display module array. Exemplarily, the adjustable period of the grating is 280 - 360 nm, the depth of the grating groove is 100 - 150 nm; the depth-to-width ratio of the grating groove is 1:2, and the inclination angle is 15°. The best diffraction efficiency matching of RGB three-color light is achieved through the asymmetric grating structure for display at a large viewing angle.

[0024] Combined with Figure 3 , in one implementation of the present invention, the self-powered glass building material with a display function further includes an energy storage module (battery pack), and the energy storage module is electrically connected to the copper indium gallium selenide thin film in the copper indium gallium selenide thin film self-powered glass through a controller. The electric energy generated by the copper indium gallium selenide power generation glass is connected to the photovoltaic power generation energy storage system through a dedicated circuit and interface. The energy storage system can select a suitable battery type according to actual needs, such as a lithium battery, etc. When the light is sufficient, the excess electric energy generated by the copper indium gallium selenide power generation glass is stored in the energy storage system; when the light is insufficient or the power consumption demand is large, the energy storage system releases electric energy to ensure the stability of building power consumption.

[0025] In the present invention, the copper indium gallium selenide thin film self-powered glass is connected to an external power supply, and the external power supply is electrically connected to the LED display module array. As Figure 3 shown, the commercial power is connected through an inverter as supplementary electric energy, which can prevent the problem of insufficient electric energy.

[0026] In one implementation of the present invention, the reflective film deposited on the surface of the concave lens is a wavelength-selective reflective film, and the film layer structure of the reflective film is a silver deposition layer with a film thickness of 10 - 15 nm, a multi-layer film formed by alternating TiO2 / SiO2 with a thickness of 1 - 2 μm, and a protective layer formed by aluminum oxide. Among them, the metal layer can effectively reflect infrared light and allow visible light to transmit at the same time, enhance the reflectivity of a specific band through the interference effect, and the protective layer can prevent the oxidation of the metal layer and improve the mechanical strength of the reflective film.

[0027] In one implementation of the present invention, the refractive index n of the glass encapsulation layer is 1.8 - 2.2 (such as 1.88). Using the glass encapsulation layer as an optical waveguide layer, the light emitted by the LED light source is constrained to propagate in the waveguide through total reflection, realizing the regulation and efficient propagation of the light field formed by the LED.

[0028] In one implementation of the present invention, different copper indium gallium selenide (CIGS) photovoltaic glass materials can be selected according to the specific requirements of the building. For example, flexible photovoltaic glass can be used to adapt to the special shape of the building. An insulating layer (not shown), such as a low-emissivity (Low-E) coating, can also be added between the photovoltaic conversion thin film and the glass substrate of the photovoltaic glass to reduce heat transfer. In the LED display module array, fluorine-doped tin oxide (FTO) is used as the electrode of the LED lamp beads. It has good electrical conductivity and light transmittance and is suitable for use in the display photovoltaic glass. The circuit pattern is formed on the glass surface by screen printing technology. This method has a low cost and is suitable for large-scale production. Control system: The control circuit can be programmed according to the actual application requirements to achieve different display effects and functions.

[0029] In one implementation of the present invention, the LED display module array is closely attached to the CIGS photovoltaic glass through optical glue. The LED light strip is arranged on the midline of the non-power generation area of the photovoltaic glass, and a concave microlens is prepared on the glass cover plate by photolithography technology. The microlens focuses the incident light and converges the light to the light transmission gaps on both sides of the light strip or the non-occluded area of the photovoltaic glass, improving the light utilization rate.

[0030] Exemplarily, on the inner side of the cover glass, concave microlenses with a diameter of 500 μm are evenly distributed with a spacing of 1000 μm. Each lens corresponds to a local area under the lamp bead substrate. The incident light (sunlight) is vertically or obliquely incident on the microlens and is refracted by the lens and then converges to the light transmission gaps on both sides of the light strip to enter the CIGS thin film for power generation. This connection method can ensure the stability of the combination of the two, and at the same time does not affect the light transmittance and photovoltaic conversion efficiency of the photovoltaic glass. The LED display module adopts a modular array, which is convenient for installation and maintenance, and different sizes and resolutions of modules can be customized according to different display requirements and building appearance requirements.

[0031] In summary, the present invention provides a self-powered glass building material with a display function, comprising: a copper indium gallium selenide thin film self-powered glass; an LED display module array, the LED display module array is pasted on the light-incident surface of the copper indium gallium selenide thin film power generation glass and is electrically connected to the copper indium gallium selenide thin film in the copper indium gallium selenide thin film self-powered glass; a glass encapsulation layer, the glass encapsulation layer is arranged on the surface of the LED display module array and is hermetically connected to the copper indium gallium selenide thin film self-powered glass; a concave lens array is arranged on the surface of the glass encapsulation layer facing the LED display module array; a reflective film is coated on the surface of each concave lens constituting the concave lens array; the light-emitting surface of the LED lamp beads in the LED display module array faces the corresponding concave lens; the reflective film includes: a silver deposition layer, and a dielectric deposition layer deposited on the surface of the silver deposition layer; the dielectric deposition layer is a composite layer in which titanium dioxide and silicon dioxide grow alternately; an LED control chip, the LED control chip is electrically connected to the LED display module array and is used to control the display content and brightness of the LED display module array.

[0032] In the present invention, the self-powered glass building material with a display function can not only meet the needs of buildings, but also realize the dual functions of power generation, energy-saving lighting and display, bringing a new solution for building-integrated photovoltaics. The CIGS power generation glass integrated with a display function can meet the needs of the intelligent building field for information display, such as real-time display of weather information, indoor temperature, energy consumption, playing advertisements, etc., improving the intelligent level of buildings. The present invention not only makes up for the deficiencies of the existing CIGS power generation glass, but also provides new ideas and solutions for the development of green buildings.

[0033] It should be understood that the application of the present invention is not limited to the above examples. For those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations should fall within the protection scope of the appended claims of the present invention.

Claims

1. A self-powered glass building material with a display function, characterized in that, Comprising: Copper indium gallium selenide thin film self-powered glass; An LED display module array, which is pasted on the light-incident surface of the copper indium gallium selenide thin film power generation glass and is electrically connected to the copper indium gallium selenide thin film in the copper indium gallium selenide thin film self-powered glass; A glass encapsulation layer, which is arranged on the surface of the LED display module array and is hermetically connected to the copper indium gallium selenide thin film self-powered glass; a concave lens array is arranged on the surface of the glass encapsulation layer facing the LED display module array; A reflective film is coated on the surface of each concave lens forming the concave lens array; The light-emitting surface of the LED lamp beads in the LED display module array faces the corresponding concave lens; the reflective film includes: a silver deposition layer, and a dielectric deposition layer deposited on the surface of the silver deposition layer; the dielectric deposition layer is a composite layer formed by alternating growth of titanium dioxide and silicon dioxide; An LED control chip, which is electrically connected to the LED display module array and is used to control the display content and brightness of the LED display module array.

2. The self-powered glass building material with a display function according to claim 1, characterized in that, A grating is arranged on the surface of the glass encapsulation layer facing away from the LED display module array, and the grating is a relief grating or a volume holographic grating.

3. The self-powered glass building material with a display function according to claim 1, characterized in that The self-powered glass building material with a display function further includes an energy storage module, and the energy storage module is electrically connected to the copper indium gallium selenide thin film in the copper indium gallium selenide thin film self-powered glass.

4. The self-powered glass building material with a display function according to any one of claims 1-3, characterized in that The copper indium gallium selenide thin film self-powered glass is connected to an external power supply, and the external power supply is electrically connected to the LED display module array.

5. The self-powered glass building material with a display function according to claim 1, characterized in that, The thickness of the silver deposition layer is 10 - 15 nm, and the thickness of the dielectric deposition layer is 1 - 2 μm.

6. The self-powered glass building material with a display function according to claim 2, characterized in that, The adjustable period of the grating is 280 - 360 nm.

7. The self-powered glass building material with a display function according to claim 6, characterized in that, The depth of the grating groove is 100 - 150 nm; the depth-to-width ratio of the grating groove is 1:

2.

8. The self-powered glass building material with a display function according to claim 5, characterized in that, The reflective film further includes an antioxidant protection layer deposited on the surface of the dielectric deposition layer, and the material of the antioxidant protection layer is aluminum oxide.

9. The self-powered glass building material with a display function according to claim 1, characterized in that, The refractive index n of the glass encapsulation layer is 1.8 - 2.2.

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