Energy-saving display screen

Abstract

The present invention discloses an energy-saving display screen, comprising a display screen housing, wherein the display screen housing has a plurality of mounting cavities opened side by side, and a display assembly is slidably mounted in each mounting cavity, wherein the plurality of display assemblies form a complete display screen body for combined playback or each display assembly for individual display; and a solar panel, wherein the solar panel is arranged at the bottom of each display assembly. When the present invention encounters strong light, it can avoid the direct light area by displacement, and use the tilted solar panel to face the strong light, which can not only reduce the high brightness of the display screen adjusted to cope with the strong light, thereby achieving the purpose of energy saving, but also this method allows the solar panel to follow the light and continuously adjust the angle of the solar panel, so that the solar panel is fully in contact with the light, thereby increasing the power generation efficiency, and using the tilted solar panel to achieve the purpose of auxiliary shading, thereby reducing the impact of strong light on the display screen and increasing the display brightness of the screen.

Description

Technical Field

[0001] The present invention relates to the field of display screens, and in particular to an energy-saving display screen. Background Art

[0002] There are the following problems when outdoor display screens are installed outdoors:

[0003] Reflections and glare: Sunlight directly hitting the display screen can create reflections on the screen surface, making the image on the screen difficult to discern. In this case, the viewer may need to look at the screen from a different angle or in the shadows to see it clearly.

[0004] Reduced contrast: Under strong sunlight, the contrast of the screen may be reduced, making the image blurry. This is because the brightness of sunlight is usually much higher than the brightness of the screen, making it difficult to distinguish colors and details on the screen.

[0005] Overheating problem: If sunlight shines directly on the display screen for a long time, it may cause the screen to overheat, affecting the performance and life of the screen. Especially for LCD screens, excessively high temperatures may cause the arrangement of liquid crystal molecules to become disordered, affecting the display effect.

[0006] In order to solve the impact of strong sunlight on outdoor display screens, the light sensor usually greatly increases the display brightness of the display screen after detecting strong light. Although adjusting the display brightness can improve the display effect, long-term high-brightness operation will cause a sharp consumption of power, which is very power-consuming.

[0007] In order to increase the energy efficiency of outdoor display screens and reduce electricity consumption when used outdoors, the traditional method is to install solar panels outside the display screen and use solar panels to assist in power generation to achieve the purpose of energy saving. However, the current use of solar panels with display screens still has many shortcomings:

[0008] First, solar panels are typically independent of the display screen and require brackets to secure them. This suspended setup can cause instability and swaying in the air, reducing their lifespan. Second, when the solar panels are not in use, such as at night, they remain exposed to harsh environmental conditions, which also shortens their lifespan and impacts their overall aesthetics.

[0009] Furthermore, to achieve optimal photovoltaic conversion efficiency, complex solar tracking systems are often required to keep solar panels facing the sun. While these systems improve power generation efficiency, their complex design increases manufacturing and maintenance costs, potentially creating additional challenges. Summary of the Invention

[0010] In order to solve the above problems, the present invention provides an energy-saving display screen, which rationally utilizes the structure of solar panels in conjunction with the displacement structure of the display screen. It can not only solve the influence of sunlight on the display screen and reduce power consumption, but also rationally arrange the solar panels, thereby increasing the power generation of the solar panels without involving complex structures. It utilizes the design structure of the solar panels and effectively solves many technical problems existing in the prior art.

[0011] The present invention is achieved through the following technical solutions: an energy-saving display screen, comprising:

[0012] A display screen housing has multiple mounting cavities arranged side by side, and a display assembly is slidably mounted in each mounting cavity. The multiple display assemblies form a complete display screen for combined playback or each display assembly can display independently.

[0013] A solar panel is disposed at the bottom of each display assembly, forming a hollow cavity between the solar panel and the bottom surface of the mounting cavity. The solar panel is located within the hollow cavity, and one side of the solar panel slides away from the display assembly and is hingedly connected. A lifting assembly is disposed at the bottom of the other side of the solar panel. When the display assembly is fully located within the mounting cavity, the solar panel is completely covered by the display assembly.

[0014] Multiple photosensitive components are arranged along the length direction of the display component. The output end of the photosensitive component is connected to the signal output end of the main control board. It also includes a driving component. The power output end of the driving component is connected to the movable opening end of the display component. The driving component is controlled by the control main board.

[0015] As an optimal technical solution, a control host is also included, which includes a host housing and a control mainboard and a power supply arranged in the host housing. The power supply is used to power the driving component. The control host is connected to the mains power, and the control mainboard is used to receive the light intensity signal of the photosensitive component.

[0016] As a preferred technical solution, the display component includes a metal base shell and a display host embedded in the metal base shell. The metal shell and the inner wall of the installation cavity are assembled through a sliding structure. An extension plate is provided on the movable end face of the metal base shell. The extension plate extends toward the back of the display screen box, and the power output end of the drive component is connected to the extension plate.

[0017] As a preferred technical solution, the sliding structure includes guide slide rods arranged on both sides of the metal bottom shell, and guide slide grooves opened on the inner wall of the installation cavity. The guide slide rods are slidably assembled into the guide slide grooves, and the cross-sections of the guide slide rods and the guide slide grooves are both "T"-shaped.

[0018] As a preferred technical solution, the driving components all include an electric push rod with a large stroke, which is fixedly mounted on a mounting plate on the back of the display screen box. The electric push rod is controlled and powered by a control host.

[0019] As a preferred technical solution, it also includes an extrusion drive assembly, which is connected to the lifting assembly through an air duct. The extrusion drive assembly is used to lift the lifting assembly after being squeezed. The lifting assembly is located at the bottom of the solar panel and on the side away from the hinged end of the solar panel.

[0020] As a preferred technical solution, the extrusion drive assembly includes a fixed sleeve fixedly mounted on the first baffle, an air storage bag and an extrusion contact rod are arranged in the fixed sleeve, one end of the extrusion contact rod is inserted into the fixed sleeve and contacts the air storage bag, and the air storage bag is connected to the lifting assembly via an air guide tube. The bottom of the first baffle is fixed to the bottom surface of the mounting cavity, and the first baffle is arranged on the side of the movable end of the display assembly;

[0021] It also includes a second baffle arranged opposite to the first baffle, and the second baffle is arranged on the back of the display assembly far away from the first baffle. When the display assembly slides toward the extrusion drive assembly, the second baffle is squeezed into contact with the extrusion contact rod to squeeze the air bag.

[0022] As a preferred technical solution, the lifting assembly includes a lifting sleeve and a telescopic push rod. The lifting sleeve passes through the display screen box, and one end of the lifting sleeve is located outside the display screen box, and the other end is located inside the display screen box. The telescopic push rod is inserted into the lifting sleeve, and a lifting airbag is provided in the lifting sleeve at the bottom of the telescopic push rod. The lifting airbag is connected to the air storage bag in the extrusion drive assembly through an air guide tube. When the lifting airbag is filled with gas from the air storage bag, the lifting airbag is used to lift the telescopic push rod, and the output end of the telescopic push rod is located at the bottom of the movable end of the solar panel.

[0023] When the extrusion drive assembly begins to be squeezed, the solar panel is tilted upward along one hinged end, with the tilted surface of the solar panel facing away from the display assembly.

[0024] As a preferred technical solution, a C-shaped bracket is provided at the hinged end of the solar panel, and the bracket is fixed to the bottom surface of the installation cavity. A hinge shaft is provided on each side of the solar panel, and a torsion spring is installed on each hinge shaft.

[0025] As a preferred technical solution, the photosensitive components all use light sensors, and the light sensors are all arranged side by side on the display assembly along the length direction of the display assembly, and a box fixing bracket is provided on the back of the display screen box.

[0026] The beneficial effects of the present invention are as follows: 1. When the light intensity exceeds a set value, the display screen can continuously move toward the side away from the sunlight, thereby preventing the direct exposure of strong sunlight to the display screen and reducing the problem of increased energy loss caused by increasing the brightness of the display screen, making the use of the display screen more energy-efficient;

[0027] Second, the solar panel of the present invention is hidden behind the display screen. When not in use at night or on cloudy days, the solar panel is hidden and not exposed. It is only exposed when there is sufficient sunlight, which effectively extends the service life of the solar panel. In addition, the solar panel does not occupy external space, does not need to be hung externally, and does not require additional solar brackets. It is not affected by external airflow when in use or not in use, and does not occupy space around the display screen, making it safer and more beautiful to use.

[0028] Third, when the display screen is constantly shifting to avoid strong light, the solar panel is continuously exposed, and photovoltaic power generation is performed using the continuously exposed solar panel. When strong light continuously covers the display screen, the solar panel will eventually flip along one hinged end, causing one side to tilt and rise.

[0029] As the display screen continues to move and continuously contacts the extrusion drive assembly, the tilt angle of the solar panel will become larger and larger. As the tilt angle of the solar panel continues to increase, the solar panel can always and maximize its contact with sunlight, maximizing the photovoltaic power generation rate. In addition, when the tilt angle of the solar panel is large enough, the structure can eventually form a shielding surface on the light-facing side of the displaced display screen. The tilted solar panel is used to form a shield on one side of the display screen, reducing the impact of strong light on the display screen.

[0030] 4. The light-facing structure of the solar panel of the present invention can not only increase the photovoltaic power generation rate of the solar panel, but also form a shield on the light-incoming side of the display screen after displacement, thereby increasing the display effect of the display screen. This structural design is more reasonable, simplifies the overall design structure of the solar panel, and truly integrates the solar panel and the display screen together, with a higher degree of integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2This is a schematic diagram of the back structure of the present invention;

[0034] Figure 3 Schematic diagram of the internal section of the present invention Figure 1 ;

[0035] Figure 4 Schematic diagram of the internal section of the present invention Figure 2 ;

[0036] Figure 5 It is a usage state diagram of the present invention;

[0037] Description of reference numerals:

[0038] 1. Display host; 2. Metal bottom shell; 3. Display screen box; 4. Light sensor; 5. Bracket; 6. Solar panel; 7. Mounting cavity; 8. Fixed bracket; 9. Lifting assembly; 10. Mounting plate; 11. Electric push rod; 12. Extension plate; 13. First baffle; 14. Fixed sleeve; 15. Extrusion contact rod; 16. Second baffle; 17. Articulated shaft; 18. Guide slide; 19. Guide slide. DETAILED DESCRIPTION

[0039] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0040] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or similar features. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0041] like Figure 1 As shown, an energy-saving display screen of the present invention includes a display screen box 3, the display screen box 3 has a plurality of mounting cavities 7 arranged side by side, and a display component is slidably mounted in each mounting cavity 7, and the plurality of display components form a complete display screen body for combined playback or each display component is displayed separately. In this embodiment, two display components are listed, so the two display components can be spliced ​​together to play together to form a complete display screen. Of course, the respective display screens can also be played separately, and the playback can be switched according to the background;

[0042] In order to reduce the economic use cost, a solar panel 6 is also included. The solar panel 6 is arranged at the bottom of each display assembly. A hollow cavity is formed between the solar panel 6 and the bottom surface of the installation cavity 7. The solar panel 6 is located in the hollow cavity, and the solar panel 6 slides away from the display assembly on one side and is hingedly linked. A lifting component 9 is set at the bottom of the other side of the solar panel 6. When the display assembly is completely located in the installation cavity 7, the solar panel 6 is completely covered by the display assembly. Therefore, when there is no strong light, the solar panel 6 is hidden at the bottom. The installation structure of the solar panel 6 is not exposed, so that the display screen and the solar panel 6 are completely integrated together. When not in use, it does not affect the appearance, and there is no need to use a solar bracket 5. The solar panel 6 is not externally suspended and is not affected by airflow when not in use, which greatly improves the service life of the solar panel 6.

[0043] As the display component shifts, the solar panel 6 will be continuously exposed. The exposed portion of the solar panel 6 is the area irradiated by strong light, thereby achieving efficient power generation. The shifted display component can also avoid strong light, and a clear display can be achieved without increasing the brightness, thereby reducing energy consumption.

[0044] It also includes multiple photosensitive components, which are arranged along the length direction of the display component. The output end of the photosensitive component is connected to the signal output end of the main control board. It also includes a driving component, and the power output end of the driving component is connected to the movable opening end of the display component. The driving component is controlled by the control main board, and senses the external light intensity through the photosensitive component to send a command signal to avoid strong light. In order to achieve gradual detection of strong light, in this embodiment, the photosensitive components are arranged along the length direction of the display component to achieve one-by-one perception of strong light, thereby achieving gradual retreat and sliding of the display component.

[0045] In order to achieve control and signal reception, a control host is also included, which includes a host housing and a control mainboard and power supply arranged in the host housing. The power supply is used to power the driving component. The control host is connected to the mains power. The control mainboard is used to receive the light intensity signal of the photosensitive component. When the light intensity is high enough, the control host will receive the instruction, control the driving component to drive, and then control the display component to achieve displacement avoidance.

[0046] like Figure 1 and Figure 2 As shown, the display assembly includes a metal base shell 2 and a display host 1 embedded in the metal base shell 2. The metal shell and the inner wall of the installation cavity 7 are assembled by a sliding structure. An extension plate 12 is provided on the movable end face of the metal base shell 2. The extension plate 12 extends toward the back of the display screen box 3. The power output end of the drive assembly is connected to the extension plate 12. When the drive assembly is ejected, it pushes the extension plate 12. After the extension plate 12 is pushed, the metal base shell 2 can be driven to slide open relative to the display screen box 3.

[0047] like Figure 5 As shown, the sliding structure includes guide rods 18 provided on both sides of the metal bottom shell 2 and guide slots 19 provided on the inner wall of the mounting cavity 7. The guide rods 18 are slidably assembled into the guide slots 19. The cross-sections of the guide rods 18 and the guide slots 19 are both T-shaped. The T-shaped guide rods 18 and the guide slots 19 are not easily separated after assembly. By providing the guide rods 18, the display assembly can slide and move along the direction of the guide slots 19, making the movement smoother. To increase stability, the number of guide rods 18 and guide slots 19 is two on each side.

[0048] like Figure 2 As shown, the driving components include a large-stroke electric push rod 11, which is fixedly mounted on the mounting plate 10 on the back of the display screen box 3. The electric push rod 11 is controlled and powered by the control host. When the electric push rod 11 receives the action command from the control host, it can push the display component out. The pushing length of the electric push rod 11 needs to meet the displacement length of the display screen.

[0049] In order to make the solar panel 6 stand up and fully contact with the light, this embodiment also includes an extrusion drive component, such as Figure 3 and Figure 4 As shown, the extrusion drive assembly is connected to the lifting assembly 9 through an air duct. The extrusion drive assembly is used to lift the lifting assembly 9 after being squeezed. The lifting assembly 9 is located at the bottom of the solar panel 6 and is located on the side away from the hinged end of the solar panel 6. When the extrusion drive assembly is pressurized, the internal gas is squeezed into the air duct. The air duct is lifted after the air is taken in, thereby lifting one side of the solar panel 6 and the hinged end on the other side rotates relative to the hinged position.

[0050] The extrusion drive assembly includes a fixed sleeve 14 fixedly mounted on the first baffle 13. The fixed sleeve 14 is provided with an air storage bag and an extrusion contact rod 15. One end of the extrusion contact rod 15 is inserted into the fixed sleeve 14 and contacts the air storage bag. The air storage bag is connected to the jacking assembly 9 via an air guide tube. The bottom of the first baffle 13 is fixed to the bottom surface of the installation cavity 7, and the first baffle 13 is arranged on the side of the movable end of the display assembly.

[0051] It also includes a second baffle 16 arranged opposite to the first baffle 13. The second baffle 16 is arranged on the back of the display component far away from the first baffle 13. When the display component slides toward the extrusion drive component, the second baffle 16 is squeezed and contacted with the extrusion contact rod 15 to squeeze the air bag. When the display component starts to move, the second baffle 16 does not contact the extrusion drive component, so the lifting component 9 will not be lifted up, and the solar panel 6 will not be tilted and lifted up.

[0052] like Figure 2 As shown, the lifting assembly 9 includes a lifting sleeve and a telescopic push rod. The lifting sleeve passes through the display screen box 3, and one end of the lifting sleeve is located outside the display screen box 3, and the other end is located inside the display screen box 3. The telescopic push rod is inserted into the lifting sleeve, and a lifting airbag is provided in the lifting sleeve at the bottom of the telescopic push rod. The lifting airbag is connected to the air storage bag in the extrusion drive assembly through an air guide tube. When the air storage bag is filled with gas, the lifting airbag is used to lift the telescopic push rod. The output end of the telescopic push rod is located at the bottom of the movable end of the solar panel 6.

[0053] When the extrusion drive assembly begins to be squeezed, the solar panel 6 is tilted upward along the hinged end and lifted up, and the inclined surface of the solar panel 6 is away from the display assembly. When the sunlight continues to shine on the photosensitive assembly, the display assembly continues to displace. With the continuous displacement, the extrusion contact force between the second baffle 16 and the extrusion drive assembly becomes greater and greater, and more and more gas enters the lifting assembly 9, and the tilt angle of the solar panel 6 becomes larger and larger. This method is just used to better cater to the changes in the angle of sunlight, allowing sunlight to better contact the solar panel 6 and maintain the best power generation efficiency. At the same time, the displacement of the display assembly is also increasing.

[0054] like Figure 3 As shown, a C-shaped bracket 5 is provided at the hinged end of the solar panel 6, and the bracket 5 is fixed to the bottom surface of the installation cavity 7. A hinge shaft 17 is provided on each side of the solar panel 6, and a torsion spring is installed on the hinge shaft 17. The torsion spring ensures that when the lifting component 9 is not lifted, the solar panel 6 is always laid flat in the installation cavity 7 and will not open. When the lifting component 9 is lifted, one end of the solar panel 6 rotates along the hinge shaft 17 to open, and the torsion spring is elastically twisted. After the lifting component 9 is reset, the solar panel 6 can be reset.

[0055] In this embodiment, the photosensitive components all use light sensors 4, and the light sensors 4 are all arranged side by side on the display assembly along the length direction of the display assembly. A box fixing bracket 85 is provided on the back of the display box 3. As can be seen from the figure, the light sensors 4 are arranged one by one in a straight line along the length direction of the display assembly. This is to effectively set according to the change of the angle of sunlight, so that the light can contact the light sensors 4 one by one to achieve continuous displacement. It should be noted that the movement of the sun is displaced in an angular manner, so it gradually contacts the light sensors 4 on one side. As the angle of the sun changes, the light sensors 4 continuously detect strong light.

[0056] In this embodiment, the display screens are arranged horizontally according to the orientation of the display screens, and the light sensors 4 are also arranged horizontally along the length of the display screens. However, the actual display screens can be designed to be arranged side by side vertically, and the light sensors 4 can be arranged vertically or tilted. The display screens can also be tilted. Display components with different orientations are selected according to the installation orientation of the display screens to obtain the best installation state, such as Figure 1 As shown, the sunlight first contacts the rightmost end of the display component. At this time, the light sensor 4 that contacts first will feedback a signal, and the display component will be controlled by the control host to move first to avoid the irradiation of strong light. After the displacement, the solar panel 6 at the displacement position will be exposed. As the sunlight continues to change, the displacement angle of the display component will become larger and larger. When the display component moves to a certain position and contacts the extrusion drive component, the solar panel 6 can be tilted and lifted up, as shown in FIG. Figure 5 As shown, when the solar panel 6 is tilted and lifted up, a shadow shielding area can be formed at the rightmost end of the display component, reducing the brightness of the right end of the display component. At the same time, the lifting angle of the solar panel 6 can fully contact the sunlight, achieving a higher state of power generation.

[0057] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined in the claims.

Claims

1. An energy-saving display screen, characterized in that: include: A display screen box (3), wherein the display screen box (3) has a plurality of mounting cavities (7) opened side by side, and a display assembly is slidably mounted in each mounting cavity (7), and the plurality of display assemblies form a complete display screen body for combined playback or each display assembly is displayed separately; a solar panel (6), wherein the solar panel (6) is arranged at the bottom of each display assembly, and a hollow cavity is formed between the solar panel (6) and the bottom surface of the mounting cavity (7), the solar panel (6) is located in the hollow cavity, and the solar panel (6) is hingedly linked on one side of the sliding away from the display assembly, and a lifting assembly (9) is arranged at the bottom of the other side of the solar panel (6), and when all the display assemblies are located in the mounting cavity (7), the solar panel (6) is completely covered by the display assembly; a plurality of photosensitive assemblies, wherein the plurality of photosensitive assemblies are arranged along the length direction of the display assembly, the output end of the photosensitive assemblies is connected to the signal output end of the main control board, and further comprising a drive assembly, the power output end of the drive assembly is connected to the movable opening end of the display assembly, and the drive assembly is controlled by the control main board; The system further includes a control host, which includes a host housing, a control mainboard and a power supply arranged in the host housing. The power supply is used to power the drive component. The control host is connected to the mains power supply. The control mainboard is used to receive the light intensity signal of the photosensitive component. The display assembly comprises a metal bottom shell (2), and a display host (1) embedded in the metal bottom shell (2); the metal bottom shell and the inner wall surface of the installation cavity (7) are assembled via a sliding structure; an extension plate (12) is provided on the movable end surface of the metal bottom shell (2); the extension plate (12) extends toward the back of the display box (3); and the power output end of the drive assembly is connected to the extension plate (12); The sliding structure includes guide slide bars (18) arranged on both sides of the metal bottom shell (2), and guide slide grooves (19) opened on the inner wall surface of the installation cavity (7), wherein the guide slide bars (18) are slidably assembled into the guide slide grooves (19), and the cross sections of the guide slide bars (18) and the guide slide grooves (19) are both T-shaped; The driving components each include an electric push rod (11), which is fixedly mounted on a mounting plate (10) on the back of the display screen box (3), and the electric push rod (11) is controlled and powered by a control host; It also includes an extrusion drive assembly, the extrusion drive assembly is connected to the lifting assembly (9) through an air guide pipe, and the extrusion drive assembly is used to lift the lifting assembly (9) after being squeezed, and the lifting assembly (9) is located at the bottom of the solar panel (6) and on a side away from the hinge end of the solar panel (6); The extrusion drive assembly includes a fixed sleeve (14) fixedly mounted on the first baffle (13), an air bag and an extrusion contact rod (15) are arranged in the fixed sleeve (14), one end of the extrusion contact rod (15) is inserted into the fixed sleeve (14) and contacts the air bag, the air bag is connected to the lifting assembly (9) through the air guide tube, the bottom of the first baffle (13) is fixed to the bottom surface of the installation cavity (7), and the first baffle (13) is arranged on the side of the movable end of the display assembly; it also includes a second baffle (16) arranged opposite to the first baffle (13), the second baffle (16) is arranged on the back of the display assembly far away from the first baffle (13), when the display assembly slides toward the extrusion drive assembly, the second baffle (16) and the extrusion contact rod (15) are squeezed and contacted to squeeze the air bag; The lifting assembly (9) includes a lifting sleeve and a telescopic lifting rod, the lifting sleeve passes through the display screen box (3), and one end of the lifting sleeve is located outside the display screen box (3), and the other end is located inside the display screen box (3), the telescopic lifting rod is inserted into the lifting sleeve, and a lifting airbag is provided in the lifting sleeve at the bottom of the telescopic lifting rod, the lifting airbag is connected to the air storage bag in the extrusion drive assembly through an air guide tube, when the lifting airbag is filled with gas in the air storage bag, the lifting airbag is used to lift the telescopic lifting rod, and the output end of the telescopic lifting rod is located at the bottom of the movable end of the solar panel (6); when the extrusion drive assembly begins to be squeezed, the solar panel (6) is lifted up along the hinged end, and the inclined surface of the solar panel (6) is away from the display assembly; A C-shaped bracket (5) is provided at the hinged end of the solar panel (6), and the bracket (5) is fixed to the bottom surface of the installation cavity (7). A hinge shaft (17) is provided on each side of the solar panel (6), and a torsion spring is installed on each hinge shaft (17); The photosensitive components all use light sensors (4), and the light sensors (4) are all arranged side by side on the display component along the length direction of the display component. A box fixing bracket (8) is provided on the back of the display box (3).

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