CN109118974A - Photovoltaic shows that curtain wall component and photovoltaic show curtain wall system - Google Patents

Abstract

The present disclosure relates to a photovoltaic display curtain wall assembly and a photovoltaic display curtain wall system. The assembly includes an inner substrate, a transparent display layer, a photovoltaic chip layer and a transparent outer plate that are sequentially stacked from inside to outside; the display layer is provided with a light-emitting display element, the photovoltaic chip layer can transmit light, and the photovoltaic chip layer and the light-emitting display element are electrically connected to each other. connect. The photovoltaic display curtain wall assembly of the present disclosure combines the photovoltaic assembly with a conventional curtain wall display device, the photovoltaic assembly itself generates electricity and can be supplied to the display device, realizes the lighting and display functions of the curtain wall, and broadens the application field of the photovoltaic assembly; the photovoltaic display curtain wall assembly of the present disclosure shows The uniform and continuous effect is good, no optical path distortion, and the display size and accuracy can be adjusted, and at the same time, safety problems such as aging, falling off, and leakage caused by the exposed display components are avoided; the photovoltaic chip layer is arranged outside the display layer containing the display components, which can avoid Due to the hot spot effect brought by the front of the photovoltaic chip, the safety of the photovoltaic module application can be improved.

Description

Photovoltaic display curtain wall components and photovoltaic display curtain wall systems

technical field

The present disclosure relates to a photovoltaic display curtain wall assembly and a photovoltaic display curtain wall system.

Background technique

The LED transparent screen is a micro-innovation of the light bar screen. Targeted improvements have been made to the patch manufacturing process, lamp bead packaging, and control system. The hollow design structure reduces the blocking of sight by structural components. Maximize the perspective effect. At the same time, it also has a novel and unique display effect. The audience stands at an ideal distance to watch, and the picture is suspended on the glass curtain wall.

In addition, when designing the advertising content screen of the LED transparent screen, the unnecessary background color can be removed and replaced with black, and only the content that needs to be expressed is displayed. The playback method can greatly reduce light pollution, while also reducing energy consumption, and can achieve more than 30% energy saving than ordinary LED displays. These characteristics of LED transparent screen make it more and more widely used in public places, and it is also increasingly showing the continuous development of applications in subdivisions.

It has extremely high permeability and transparency, and integrates with the building and decoration environment without affecting lighting and aesthetics. High refresh rate and high grayscale, the picture is realistic, meeting the requirements of high visual quality. Remote cluster control, real-time communication, remote use of the cloud to monitor and control multiple displays at the same time, and the ability to change the advertising content at any time to ensure that the advertising content is updated in real time. Any video and picture formats can be played.

At present, the technology of LED display curtain wall mainly includes external type and built-in type;

The plug-in type mainly sticks the LED display strip on the outer surface of the curtain wall to realize the luminous display. However, in this method, the LED display strip is directly exposed to the external environment, which can easily lead to the aging and discoloration of the LED lamp, which seriously affects the luminous efficiency and color contrast of the entire system; and this external structure will affect the appearance of the curtain wall. In the long-term use process, the product is prone to safety problems such as aging, falling off, and leakage.

Built-in type: In the curtain wall system that has been completed, an LED display device is placed indoors. This display device is attached to the back of the curtain wall glass, and the light emitted by the LED display glass passes through the curtain wall glass to realize the display.

The built-in device is to install a set of LED display devices on the existing curtain wall system, which is embedded in the room and fixed inside the curtain wall room. The system has the following problems: 1. Due to the use of an indoor installation device, the luminous LED lights are indoors, which will cause the light emitted by the LED to pass through the curtain wall glass and be reflected into the room, thereby affecting the indoor lighting environment. , resulting in "light pollution". 2. The structure of the embedded LED light-emitting display screen in the indoor environment must be embedded in the glass curtain wall partition. Due to the influence of the layers and columns of the curtain wall system, a continuous display system cannot be formed, which will lead to long-distance viewing. , the display screen is not continuous. 3. Because the LED display screen is behind the curtain wall glass, the light emitted by the LED display device is refracted and scattered by the curtain wall system and then transmitted to the outdoors. Because of the uneven refractive index of the curtain wall system itself, the light emitted by the LED display device will be caused. After passing through the curtain wall, the light path is distorted, and the displayed image and video signal are distorted.

SUMMARY OF THE INVENTION

The purpose of the present disclosure is to provide a photovoltaic display curtain wall assembly and a photovoltaic display curtain wall system, which can solve the problem that the existing LED display screen cannot be large on the glass curtain wall due to factors such as weight, permeability and aesthetics. area usage issues.

In order to achieve the above object, a first aspect of the present disclosure provides a photovoltaic display curtain wall assembly, which includes an inner substrate, a display layer, a photovoltaic chip layer and an outer plate stacked in sequence from inside to outside; the display layer is provided with a light-emitting display The photovoltaic chip layer can transmit light, and the photovoltaic chip layer is electrically connected with the light-emitting display element.

Optionally, a first light-transmitting sealant layer is provided between the inner substrate and the display layer, a second light-transmitting sealant layer is provided between the display layer and the photovoltaic chip layer, and the photovoltaic A third light-transmitting sealant layer is arranged between the chip layer and the transparent outer plate.

Optionally, a plurality of the light-emitting display elements arranged in an array are arranged in the display layer.

Optionally, the light-emitting display element is an LED lamp, and the display layer is a transparent display layer.

Optionally, the transparent display layer includes a transparent substrate, a SiO ₂ layer and a metal oxide layer that are sequentially covered from the inside to the outside, the metal oxide layer is etched with conductive leads, and the first ends of the conductive leads are is electrically connected to the light-emitting display element.

Optionally, the assembly further includes a controller, which is electrically connected to the second end of the conductive lead for controlling the light-emitting display element to be turned on and off.

Optionally, the photovoltaic chip layer has a plurality of light-transmitting holes, and the number and positions of the light-transmitting holes are matched with the light-emitting display element.

Optionally, the aperture of the light-transmitting hole is larger than the diameter of the light-emitting surface of the light-emitting display element.

Optionally, the photovoltaic chip layer includes a substrate and a photovoltaic chip film, and the photovoltaic chip film includes a positive electrode layer, an absorption layer, a buffer layer and a cathode layer sequentially plated on the substrate; the substrate is a light-transmitting substrate , the light-transmitting hole penetrates the photovoltaic chip film along the inner and outer directions; or, the substrate is an opaque substrate, and the light-transmitting hole penetrates the photovoltaic chip layer along the inner and outer directions.

Optionally, the first light-transmitting sealant layer, the second light-transmitting sealant layer and the third light-transmitting sealant layer are independently selected from PVB adhesive layers, EVA adhesive layers or SGP adhesive layers, Or a combination of two or three of them.

A second aspect of the present disclosure provides a photovoltaic display curtain wall system including the photovoltaic display curtain wall assembly described in the first aspect of the present disclosure.

Through the above technical solutions, the photovoltaic display curtain wall assembly of the present disclosure combines the photovoltaic assembly with a conventional curtain wall display device, and the photovoltaic assembly itself generates electricity and can be supplied to the display device, realizes the function of lighting and display of the curtain wall, and broadens the application field of the photovoltaic assembly; The display layer in the volt display curtain wall assembly is arranged between the inner and outer substrates, which has good uniform and continuous display effect, no optical path distortion, and can adjust the display size and accuracy, while avoiding the aging, falling off, leakage and other safety problems caused by the exposed display parts; The photovoltaic chip layer is arranged outside the display layer containing the display element, which can avoid the hot spot effect caused by the front of the photovoltaic chip, and can improve the safety of the photovoltaic module application.

Other features and advantages of the present disclosure will be described in detail in the detailed description that follows.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification, and together with the following detailed description, are used to explain the present disclosure, but not to limit the present disclosure. In the attached image:

FIG. 1 is a schematic structural exploded view of a specific embodiment of a photovoltaic display curtain wall assembly provided by the present disclosure.

FIG. 2 is a schematic structural diagram of a transparent display layer of a specific embodiment of the photovoltaic display curtain wall assembly provided by the present disclosure.

3 is a schematic diagram of a photovoltaic chip layer structure of a specific embodiment of the photovoltaic display curtain wall assembly provided by the present disclosure.

Description of reference numerals

1 Inner substrate 2 Display layer

21 Light-emitting display element 22 Conductive lead

3 Photovoltaic chip layer 31 Light transmission hole

4 Transparent outer plate 51 First transparent sealant layer

52 The second transparent sealant layer 53 The third transparent sealant layer

Detailed ways

The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, but not to limit the present disclosure.

In the present disclosure, unless otherwise stated, the use of orientation words such as "outside, inside" refers to the outside and inside of the photovoltaic display curtain wall assembly in actual use, specifically, the side close to the building interior during use is Inside, the side away from the outside of the building during use is outside. For details, please refer to the direction of the drawing in Figure 1.

As shown in FIG. 1 , a first aspect of the present disclosure provides a photovoltaic display curtain wall assembly, which includes an inner substrate 1 , a display layer 2 , a photovoltaic chip layer 3 and a transparent outer plate sequentially adhered to the inner substrate 1 from inside to outside 4; the transparent display layer 2 is provided with a light-emitting display element 21 , the photovoltaic chip layer 3 can transmit light, and the photovoltaic chip layer 3 is electrically connected with the light-emitting display element 21 .

The photovoltaic display curtain wall assembly of the present disclosure combines the photovoltaic assembly with a conventional curtain wall display device, the photovoltaic assembly itself generates electricity and can be supplied to the display device, realizes the function of lighting and display of the curtain wall, and broadens the application field of the photovoltaic assembly; in the photovoltaic display curtain wall assembly of the present disclosure The display layer is arranged between the inner and outer substrates, and the display is uniform and continuous, without optical path distortion, and the display size and accuracy can be adjusted. The outer side of the display layer containing the display element can avoid the hot spot effect caused by the front of the photovoltaic chip, and can improve the safety of the application of the photovoltaic module.

According to the present disclosure, the layers of the photovoltaic display curtain wall assembly may be adhered and pasted by sealant. For example, in a specific embodiment of the present disclosure, as shown in FIG. 1 , the inner substrate 1 and the display layer 2 may be A first light-transmitting sealant layer 51 is provided, a second light-transmitting sealant layer 52 can be provided between the display layer 2 and the photovoltaic chip layer 3 , and a third light-transmitting layer 4 can be provided between the photovoltaic chip layer 3 and the outer plate 4 Sealant layer 53 . The above-mentioned light-transmitting sealant layer can fix each functional layer of the photovoltaic display curtain wall assembly and insulate the layers from each other. At the same time, each light-transmitting sealant layer is preferably a transparent sealant layer to ensure the light-transmitting effect of the photovoltaic display curtain wall assembly. display effect.

The light-transmitting sealant layer may be an adhesive layer formed by conventional types of light-transmitting sealants in the art. Further, in order to ensure the light-transmitting effect and the sealing effect, the first light-transmitting sealant layer, the second light-transmitting sealant layer and the third light-transmitting sealant layer can be independently selected from PVB adhesive layer, EVA adhesive layer or SGP. Subbing layers, or a combination of two or three of them. The PVB adhesive layer, the EVA adhesive layer or the SGP adhesive layer are well known in the art, and can be prepared from commercially available PVB adhesive, EVA adhesive or SGP adhesive, and the preparation method is conventional in the art, and will not be repeated here.

In order to adjust the display content according to the requirements, in an embodiment of the present disclosure, as shown in FIG. 2 , a plurality of light-emitting display elements 21 arranged in an array may be provided in the display layer 2 to form a light-emitting display matrix, so as to pass the Adjust the spacing (point viewing distance) and the number of light-emitting display elements to obtain display curtain walls with different sizes and display accuracy, so as to expand the application range of the component.

According to the present disclosure, the light-emitting display element may be of a conventional type in the field, and preferably, the light-emitting display element may be an LED lamp, so as to be conveniently controllable and obtain a variety of display effects.

According to the present disclosure, the display layer is provided with a light-emitting display element to realize the light-emitting display function of the photovoltaic display curtain wall assembly, and the light-emitting display element is preferably embedded in the display layer.

Further, in order to improve the display effect, in an embodiment of the present disclosure, the display layer may be a light-transmitting display layer, more preferably a transparent display layer; in an embodiment in which the light-emitting display element is an LED lamp, the transparent display layer Outside the light-emitting display element is transparent to form a transparent display layer with embedded LED lights. In this embodiment, when the LED transparent display layer performs light-emitting display, only the content to be expressed can be displayed, and the rest of the background color is changed to black and does not emit light when playing, forming a transparent effect, improving the viewing degree, and at the same time, it can greatly improve the viewing experience. Reduce light pollution, reduce energy consumption, can achieve more than 30% energy saving than ordinary LED display.

In a specific embodiment of the present disclosure, the transparent display layer may include a transparent substrate, a SiO ₂ layer and a metal oxide layer that are sequentially adhered from the inside to the outside, and the SiO ₂ layer is preferably plated on the outside of the transparent substrate, The SiO ₂ layer can prevent the alkali metal ions in the glass from diffusing out to the subsequent metal oxide layer, so as to prevent the polarity of the metal oxide layer from changing and affecting the physical properties, and the setting of the SiO ₂ layer can make the metal oxide layer. The layer is fully intercalated with the _SiO2 layer, thereby improving the adhesion of the metal oxide layer.

The transparent substrates can be conventional ones in the field, such as glass substrates, PET substrates or PC substrates.

According to the present disclosure, the metal oxide layer can be of the kind conventional in the art, such as containing ITO (indium tin oxide layer), ZnO, AZO, _SnO , or tin-doped zinc oxide, or a combination of two or three of them; the metal The oxide layer can be prepared by conventional methods in the art, such as magnetron sputtering, vacuum evaporation or CVD (chemical vapor deposition) to prepare the metal oxide layer, preferably magnetron sputtering, high energy incident during magnetron sputtering The ions bombard the surface of the target, sputter the atoms or molecules of the target, deposit on the substrate with high energy, and convert its own kinetic energy into thermal energy, which enhances the adhesion of the sputtered atoms and the substrate. In the plasma state, the film can be combined more firmly and densely, so that the film itself has a lower absorption rate of light, and the transmittance of the product is relatively high.

According to the present disclosure, in order to facilitate the connection of the light-emitting display element, in a specific implementation manner of the present disclosure, as shown in FIG. 2 , the metal oxide layer may be etched with conductive leads 22, and the first ends of the conductive leads 22 may be connected with the light-emitting The display element 21 is electrically connected; further, the assembly may further include a controller, which may be electrically connected to the second end of the conductive lead for controlling the light-emitting display element to be turned on and off, so as to realize the display layer and pattern transformation effect . The controller can be a conventional type of LED light controller in the field, which is not particularly limited in the present disclosure. The controller can be arranged on the frame of the photovoltaic display curtain wall assembly or the attached frame of the photovoltaic display curtain wall system formed by splicing multiple photovoltaic display curtain wall assemblies. , the controller can be connected with the LED lights of the photovoltaic display curtain wall assembly through wires. In an embodiment in which a plurality of photovoltaic display curtain wall assemblies are spliced to form a photovoltaic display curtain wall system, a plurality of photovoltaic display curtain wall assemblies may be respectively connected to one or more controllers.

In the embodiment where the transparent display layer includes a plurality of light-emitting display elements, one or more conductive leads may be etched on the transparent display layer, so that the first ends of the conductive leads are respectively connected with each light-emitting display element, and the conductive leads are connected to each other. The second end of the lead is electrically connected to the controller.

Wherein, the preparation method of the conductive lead can be conventional in the art. For example, in an embodiment of the present disclosure, a layer of photoresist, such as POSI glue, can be hang-coated on the metal oxide layer of the transparent display layer. The glue has a wavelength of 365nm and is resistant to strong acid. After exposure to ultraviolet radiation, alkali washing, and acid washing, an ITO pattern is formed to form conductive leads, and light-emitting displays such as LED lights are welded at the corresponding welding pin positions. control to realize the display of the LED screen.

According to the present disclosure, the photovoltaic chip layer can convert light energy into electrical energy through the photoelectric effect or photochemical effect, so as to supply power for the photovoltaic display curtain wall assembly; the photovoltaic chip layer can be a conventional type in the field, such as a copper indium gallium selenide photovoltaic chip layer (CIGS ).

According to the present disclosure, since the photovoltaic chip layer has an opaque film layer, in a specific implementation manner, in order to ensure the display effect of the photovoltaic display curtain wall assembly, as shown in FIG. 3 , the photovoltaic chip layer 3 may have a plurality of transparent film layers. The light hole 31 is used to transmit the light emitted from the light-emitting display element 21 of the display layer 2 to realize the light-emitting display function of the photovoltaic display curtain wall. Further, in order to ensure the light-transmitting display effect, the number and position of the light-transmitting holes can be matched with the light-emitting display elements, that is, the light-transmitting holes have the same number and overlapping positions of the light-emitting display elements. All the light transmitted through the light-transmitting hole, preferably, the aperture of the light-transmitting hole is larger than the diameter of the light-emitting surface of the light-emitting display element.

According to the present disclosure, the photovoltaic chip layer with light-transmitting holes may be prepared by forming light-transmitting holes on the opaque photovoltaic chip layer; in a specific embodiment of the present disclosure, the photovoltaic chip layer may include a substrate and a photovoltaic Chip film, in one embodiment, the substrate is a light-transmitting substrate, which can be conventional in the field, such as glass and/or PET; in another embodiment, the substrate is an opaque substrate, such as a steel sheet and/or aluminum sheets. The photovoltaic chip film can include a positive electrode layer, an absorber layer, a buffer layer and a negative electrode layer that are sequentially plated on the substrate. For example, the positive electrode layer can be a MO metal layer, Al or molybdenum aluminum alloy material, or two or three of them. In combination, the absorption layer can be a CIGS (copper indium gallium selenide) film layer, as a photovoltaic chip (solar cell) P-type semiconductor region, the absorption layer can be plated on the substrate by magnetron sputtering; the buffer layer can be CdS film As the N-type semiconductor region of the photovoltaic chip (solar cell), the buffer layer can be formed on the absorber layer by chemical deposition; the cathode layer can contain metal oxides such as ITO, ZnO, AZO (aluminum-doped zinc oxide) or tin-doped Zinc oxide, or a combination of two or three of them, the cathode layer can be plated on the buffer layer by magnetron sputtering, and the film thickness of the cathode layer is preferably In order to ensure the light transmittance of the product and control the surface resistance; in the process of coating the film layer, several sub-cell arrays and positive and negative electrode systems of solar cells can be formed by scribing, edge cleaning and other processes.

Further, in the embodiment in which the substrate is a light-transmitting substrate, the light-transmitting holes pass through the photovoltaic chip film in the inner and outer directions, that is, the light-transmitting holes pass through the positive electrode layer, the absorption layer, the buffer layer and the cathode layer in turn in the inner and outer directions, so that the The light emitted by the display layer inside the photovoltaic chip layer is transmitted through the light-transmitting hole; in the embodiment where the substrate is an opaque substrate, the light-transmitting hole can pass through the entire photovoltaic chip layer in the inner and outer directions, so that the light emitted by the display layer can be transmitted from the light-transmitting hole. The light-transmitting hole comes out. The method for forming the light-transmitting hole may include steps such as silk screen printing, sandblasting, alkali washing, etc., to remove the opaque photovoltaic chip film layer on the light-transmitting substrate, and the transparent light path; further, the light transmittance of the transparent display layer is preferably 20～20～ 30% to guarantee the display effect.

According to the present disclosure, the types of the inner substrate and the outer plate can be conventional in the field, the inner substrate can be transparent or opaque, for example, the inner substrate can be made of glass, PET, steel or aluminum, and the outer plate is a transparent plate, which can be Use glass or PET sheet.

Further, the edge of the photovoltaic display curtain wall assembly can be sealed by a sealant strip such as butyl glue.

A second aspect of the present disclosure provides a photovoltaic display curtain wall system including the photovoltaic display curtain wall assembly of the first aspect of the present disclosure.

Further, the photovoltaic display curtain wall system may include a plurality of photovoltaic display curtain wall components distributed in an array. Multiple photovoltaic display curtain wall components can be spliced and installed to form a curtain wall system, and multiple components can be fixed and installed through a support frame. The structure of the support frame can be conventional in the art, and will not be described in detail in this disclosure.

The present disclosure is described below by means of examples, but the present disclosure is not limited thereby.

Example

This embodiment is used to illustrate the photovoltaic display curtain wall assembly of the present disclosure and the preparation method thereof.

As shown in FIG. 1 , the photovoltaic display curtain wall assembly sequentially includes an inner substrate, a first light-transmitting sealant layer, a transparent display layer, a second light-transmitting sealant layer, a photovoltaic chip layer, and a third light-transmitting sealant layer from inside to outside. and outer panels;

Using a vacuum continuous coating machine, pass N ₂ and Ar gases into the equipment, first make a SiO ₂ layer on the front of the glass substrate, and then coat metal oxide (ITO/AZO (aluminum-doped zinc oxide)/SnO ₂ ) film layer, film thickness The surface resistance is controlled while ensuring the light transmittance of the product; after the coating is completed, squeegee, exposure, development, etching and other processes are performed to form conductive leads, and the two ends of the conductive leads are LED lights and drive controllers respectively to form a transparent display layer;

The positive electrode (mo), absorption layer (CIGS), buffer layer (CdS), and cathode (ITO) are formed on the glass substrate by magnetron sputtering, evaporation plating, chemical deposition technology, and then screen printing, sandblasting, alkali washing, etc. The process removes the non-transparent film layer on the glass substrate, and forms transparent holes on the surface of the chip to form a light-transmitting photovoltaic chip layer;

The transparent display layer and the photovoltaic chip layer are laminated with the inner substrate and the transparent outer plate through the light-transmitting sealant layer PVB, so as to ensure that the position of the LED lamp is just aligned with the transparent hole of the light-transmitting chip; After pressing, wiring, trimming, testing and other processes, and then testing and quality inspection, the photovoltaic display curtain wall assembly of this embodiment is obtained. Multiple photovoltaic display curtain wall components are spliced and installed to form a photovoltaic display curtain wall system. The curtain wall system can adjust and customize the display size and accuracy according to the display requirements. It has no hot spot effect, energy saving and environmental protection, beautiful appearance and long service life.

The photovoltaic display curtain wall assembly of the present disclosure has the functions of light emission and display, and the photovoltaic power generation itself can be used for the light-emitting display parts in the assembly, and has high practicability and wide application fields.

The preferred embodiments of the present disclosure have been described above in detail with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details of the above-mentioned embodiments. Various simple modifications can be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure. These simple modifications all fall within the protection scope of the present disclosure.

In addition, it should be noted that the various specific technical features described in the above-mentioned specific embodiments can be combined in any suitable manner unless they are inconsistent. In order to avoid unnecessary repetition, the present disclosure provides The combination method will not be specified otherwise.

In addition, the various embodiments of the present disclosure can also be arbitrarily combined, as long as they do not violate the spirit of the present disclosure, they should also be regarded as the contents disclosed in the present disclosure.

Claims (11)

1. A photovoltaic display curtain wall assembly, characterized in that the assembly comprises an inner substrate, a display layer, a photovoltaic chip layer and a transparent outer plate sequentially stacked from inside to outside; The display layer is provided with a light-emitting display element, the photovoltaic chip layer can transmit light, and the photovoltaic chip layer is electrically connected with the light-emitting display element. 2 . The photovoltaic display curtain wall assembly according to claim 1 , wherein a first light-transmitting sealant layer is disposed between the inner substrate and the display layer, and a first light-transmitting sealant layer is disposed between the display layer and the photovoltaic chip layer. 3 . There is a second light-transmitting sealant layer, and a third light-transmitting sealant layer is arranged between the photovoltaic chip layer and the transparent outer plate. 3 . The photovoltaic display curtain wall assembly according to claim 1 , wherein a plurality of the light-emitting display elements arranged in an array are arranged in the display layer. 4 . 4. The photovoltaic display curtain wall assembly according to claim 1 or 3, wherein the light-emitting display element is an LED lamp, and the display layer is a transparent display layer. 5 . The photovoltaic display curtain wall assembly according to claim 4 , wherein the transparent display layer comprises a transparent substrate, a SiO ₂ layer and a metal oxide layer which are sequentially covered from inside to outside, and the metal oxide layer is etched. 6 . There are conductive leads, and the first ends of the conductive leads are electrically connected with the light-emitting display element. 6 . The photovoltaic display curtain wall assembly according to claim 5 , wherein the assembly further comprises a controller, the controller is electrically connected with the second end of the conductive lead, so as to control the light-emitting display element to turn on and off. 7 . closure. 7. The photovoltaic display curtain wall assembly according to claim 1 or 2, wherein the photovoltaic chip layer has a plurality of light-transmitting holes, and the number and positions of the light-transmitting holes are matched with the light-emitting display element. 8 . The photovoltaic display curtain wall assembly according to claim 7 , wherein the aperture of the light-transmitting hole is larger than the diameter of the light-emitting surface of the light-emitting display element. 9 . 9 . The photovoltaic display curtain wall assembly according to claim 7 , wherein the photovoltaic chip layer comprises a substrate and a photovoltaic chip film, and the photovoltaic chip film comprises a positive electrode layer, an absorption layer, a buffer layer and a layer of a positive electrode plated on the substrate in sequence. 10 . layer and cathode layer; The substrate is a light-transmitting substrate, and the light-transmitting holes pass through the photovoltaic chip film along the inner and outer directions; or, The base is an opaque base, and the light-transmitting holes pass through the photovoltaic chip layer along the inner and outer directions. 10. The photovoltaic display curtain wall assembly of claim 2, wherein the first light-transmitting sealant layer, the second light-transmitting sealant layer, and the third light-transmitting sealant layer are independently selected from the group consisting of: PVB adhesive layer, EVA adhesive layer or SGP adhesive layer, or a combination of two or three of them. 11 . A photovoltaic display curtain wall system, characterized in that, the system comprises the photovoltaic display curtain wall assembly according to any one of claims 1 to 10 .