A transparent screen and light barrier

Abstract

This application provides a transparent screen and a light-blocking plate. The transparent screen includes: a screen body, which includes a display surface and a back surface disposed opposite to each other; and a light-blocking plate located on one side of the back surface and detachably connected to the screen body. When the light-blocking plate is connected to the screen body, it at least blocks the light-transmitting area of ​​the back surface. According to the technical solution provided in this application, a detachably connected light-blocking plate is provided on the back of the transparent screen. When light transmission is not required, the light-blocking plate can be installed on the screen body to block the light-transmitting area of ​​the transparent screen. When light transmission is required, the light-blocking plate can be removed from the screen body to allow light to pass through the transparent screen. Thus, the transparent screen can be set to be light-transmitting or opaque according to different needs.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a transparent screen and a light-blocking plate. Background Technology

[0002] Currently, one way to implement a larger screen is to install a light panel with gaps on the screen frame to form a transparent screen. Different display colors are created by the LEDs on the light panel, thereby forming the corresponding display image.

[0003] However, the gaps in the transparent screens currently in use allow light to pass through. In some applications, it is desirable for the transparent screen to be able to pass through or not pass through depending on different needs. The transparent screens currently in use cannot achieve this, allowing light to pass through when needed and not passing through when not needed. Utility Model Content

[0004] In view of the above problems, this application proposes an embodiment. The purpose of this application embodiment is to provide a transparent screen and a light-blocking plate, wherein the light-blocking plate is used to block the areas of the transparent screen that do not need to transmit light, so as to solve the above problems.

[0005] To achieve this objective, the embodiments of this application provide the following technical solutions: This application provides a transparent screen, including: The screen body includes a display surface and a back surface disposed opposite to each other; A light-blocking plate is located on one side of the back and is detachably connected to the screen body; When the light-blocking plate is connected to the screen body, the light-blocking plate at least blocks the light-transmitting area on the back.

[0006] Optionally, a connecting nut is provided on the screen body; The light-blocking plate is provided with a first light-shielding cover at the position corresponding to the connecting nut. The first light-shielding cover is provided with a connecting hole at the position corresponding to the connecting nut, and the connecting screw passes through the connecting hole and connects with the connecting nut.

[0007] Optionally, located inside the first light shield, an extension sleeve is provided on the outer periphery of the connecting hole, and the connecting screw can be passed through the extension sleeve and connected to the connecting nut; Located outside the first light shield, a light-shielding gasket is also provided between the connecting screw and the first light shield.

[0008] Optionally, the screen body and the light-blocking plate are respectively provided with a male connector and a female connector for use.

[0009] Optionally, the screen body is provided with a first positioning element; The light-blocking plate is provided with a second positioning element at the position corresponding to the first positioning element, and the second positioning element is positioned and connected to the first positioning element.

[0010] Optionally, one of the first positioning element and the second positioning element is a first magnet, and the other is a second magnet with magnetic properties opposite to those of the first magnet, or a magnetic element.

[0011] Optionally, the light-blocking plate is provided with a second light-shielding cover at the position corresponding to the first positioning member, and the second light-shielding cover is provided with the second positioning member at the position corresponding to the first positioning member.

[0012] Optionally, the screen body includes a frame and a light panel disposed on the frame, the frame including multiple crossbeams and multiple longitudinal beams; The light-blocking plate is detachably connected to the frame and / or the lamp panel, and the light-blocking plate at least blocks the area where the lamp panel is located; The light-blocking plate has a first bent portion in the area corresponding to the crossbeam, and the first bent portion covers the outer periphery of the crossbeam; The light-blocking plate has a second bend in the area corresponding to the longitudinal beam, and the second bend covers at least a portion of the outer periphery of the longitudinal beam.

[0013] Optionally, there are multiple light-blocking plates, with two adjacent light-blocking plates disposed on both sides of a longitudinal beam, and the two adjacent light-blocking plates respectively covering the outer periphery of both sides of the longitudinal beam through the second bending portion; The longitudinal beam is provided with a pressure strip, which forms a clamping structure with the longitudinal beam and clamps and fixes the second bent portion on the two adjacent light-blocking plates respectively.

[0014] Optionally, the pressure strip is a hollow trapezoidal tube, and the pressure strip forms the clamping structure with the longitudinal beam through its long side.

[0015] Accordingly, embodiments of this application also provide a light-blocking plate, including the light-blocking plate as described above.

[0016] The technical solution provided in this application embodiment provides a detachable light-blocking plate on the back of the transparent screen. When the transparent screen does not need to transmit light, the light-blocking plate can be installed on the screen body to block the light-transmitting area of ​​the transparent screen. When the transparent screen needs to transmit light, the light-blocking plate can be removed from the screen body to allow the transparent screen to transmit light. Thus, the transparent screen can be set to be light-transmitting or opaque according to different needs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the transparent screen provided in an embodiment of this application, showing the angle of the back side of the transparent screen; Figure 2 This is a schematic diagram of the screen body provided in an embodiment of this application, omitting some of the light panels; Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure along line AA in the middle; Figure 4 for Figure 3 Enlarged structural diagram at point C; Figure 5 A schematic diagram of the planar structure of the light-blocking plate provided in the embodiments of this application, including two light-blocking plates; Figure 6 for Figure 1 Schematic diagram of the cross-sectional structure along the BB line in the middle; Figure 7 for Figure 3 A magnified structural diagram at point D.

[0019] Explanation of reference numerals in the attached figures: 10: Screen body; 11: Connecting nut; 12: First positioning component; 13: Frame; 131: Crossbeam; 132: Longitudinal beam; 14: Lamp panel; 15: Pressure strip; 20: Light-blocking plate; 21: First light shield; 211: Connecting screw; 212: Extension sleeve; 213: Light-blocking gasket; 22: Second positioning component; 23: Second light shield; 24: First bending part; 25: Second bending part. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present application, not the entire structure.

[0021] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] Figure 1 This is a schematic diagram of the structure of the transparent screen provided in the embodiments of this application. The back angle of the transparent screen is shown below. Figure 1 As shown.

[0024] This application provides a transparent screen, including a screen body 10 and a light-blocking plate 20. The screen body 10 includes a display surface and a back surface disposed opposite to each other. The display surface is the side from which the transparent screen displays the image, and the back surface is the side opposite (or opposite to) the display surface. The light-blocking plate 20 is located on one side of the back surface and is detachably connected to the screen body 10. When the light-blocking plate 20 is connected to the screen body 10, it at least blocks the light-transmitting area of ​​the back surface. The light-blocking plate 20 is non-transparent, preventing light from passing through, i.e., preventing light transmission.

[0025] In this embodiment of the application, one way to implement the screen body 10 is by combining... Figure 1 See Figure 2 The main body of the screen 10 includes a frame 13 and a light panel 14. Figure 2 Only a portion of the light panel 14 is shown in the image (some light panels 14 are omitted). One implementation of the frame 13 is that the frame 13 includes multiple crossbeams 131 and multiple longitudinal beams 132 (the positions of the crossbeams 131 and longitudinal beams 132 can be interchanged). The multiple crossbeams 131 and multiple longitudinal beams 132 can be connected according to different needs to form frames 13 of different shapes, including but not limited to... Figure 1 and Figure 2The rectangular frame shown. The light-blocking plate 20 can be connected to the frame 13 and / or the light panel 14.

[0026] The light board 14 is a flexible board, including but not limited to a PCB (Printed Circuit Board). The light board 14 includes multiple parallel light strips, each with multiple LEDs, including but not limited to LEDs (Light Emitting Diodes). The surface of the light board 14 with the LEDs is the display surface. There is a gap between adjacent light strips, allowing light to pass through the screen body 10.

[0027] In some application scenarios, it is desirable for the transparent screen to be transparent or opaque depending on different needs. Therefore, in this embodiment, a light-blocking plate 20 is detachably provided on the back of the screen body 10. The light-blocking plate 20 can block the light-transmitting area on the back of the screen body 10. For example, when the transparent screen does not need to transmit light, the light-blocking plate 20 can be installed on the screen body 10 so that all light-transmitting areas of the screen body 10 are opaque. When the transparent screen needs to transmit light, the light-blocking plate 20 can be removed.

[0028] The technical solution provided in this application embodiment provides a detachable light-blocking plate 20 on the back of the transparent screen. When the transparent screen does not need to transmit light, the light-blocking plate 20 can be installed on the screen body 10 to block the light-transmitting area of ​​the transparent screen. When the transparent screen needs to transmit light, the light-blocking plate 20 can be removed from the screen body 10 so that the transparent screen can transmit light. Thus, the transparent screen can be set to transmit light or not transmit light according to different needs.

[0029] See Figure 3 and Figure 4 In this embodiment, one way to connect the light-blocking plate 20 to the screen body 10 is that the screen body 10 is provided with a connecting nut 11; the connecting nut 11 can be provided on the frame 13 or on the lamp plate 14. See also Figures 3 to 5The light-blocking plate 20 has a first light-shielding cover 21 at the position corresponding to the connecting nut 11. The first light-shielding cover 21 has a connecting hole at the position corresponding to the connecting nut 11, and the connecting screw 211 passes through the connecting hole and connects with the connecting nut 11. The connecting nut 11 is installed on the screen body 10 by means of fasteners, including but not limited to the connecting nut 11. The connecting nut 11 and the connecting screw 211 facilitate the installation and removal of the light-blocking plate 20. For example, when the transparent screen does not need to transmit light, the light-blocking plate 20 is installed on the back of the transparent screen by connecting the connecting screw 211 and the connecting nut 11 to block the light-transmitting area of ​​the transparent screen, so that the transparent screen is not transparent. When the transparent screen needs to transmit light, the connecting screw 211 is removed from the connecting nut 11, so that the light-blocking plate 20 can be removed from the screen body 10, so that the light-transmitting area of ​​the transparent screen can continue to transmit light.

[0030] The first light shield 21 can cover and fasten the connecting nut 11, and also cover the area around the connecting nut 11 to prevent light leakage around the connecting nut 11. At the same time, the first light shield 21 has a certain height so that the connecting nut 11 can be accommodated inside the first light shield 21, preventing the protruding part of the connecting nut 11 from pushing up the light blocking plate 20 and causing the relative position of the light blocking plate 20 to move.

[0031] Furthermore, to enhance the connection stability of the connecting screw 211 to the light-blocking plate 20, in some feasible embodiments of this application, one implementation is that an extension sleeve 212 is provided on the outer periphery of the connecting hole inside the first light-blocking cover 21, and the connecting screw 211 can be inserted through the extension sleeve 212 to connect with the connecting nut 11. The extension sleeve 212 can increase the contact area between the connecting screw 211 and the light-blocking cover, thereby increasing the connection stability. At the same time, the extension sleeve 212 can also play a guiding and positioning role. For example, if one end of the extension sleeve 212 abuts or sleeves with the connecting nut 11, the connecting hole and the connecting nut 11 can be quickly aligned. After the connecting screw 211 extends into the connecting hole, it can be precisely connected to the connecting nut 11 along the extension sleeve 212, thereby improving the connection efficiency. In addition, an anti-loosening spring can be installed inside the extension sleeve 212. After the connecting screw 211 is connected to the connecting nut 11, the connecting screw 211 can be screwed in further to compress the anti-loosening spring. The rebound force of the anti-loosening spring acts on the connecting screw 211 to achieve the anti-loosening effect.

[0032] Another way to enhance the connection stability of the connecting screw 211 to the light-blocking plate 20 is to provide a light-blocking gasket 213 between the connecting screw 211 and the first light-blocking cover 21, located outside the first light-blocking cover 21. The light-blocking gasket 213 can increase the contact area between the connecting screw 211 and the light-blocking cover, thereby increasing the connection stability. At the same time, the light-blocking gasket 213 can also block the connection hole, reducing light leakage at the connection hole location.

[0033] It should be noted that in some feasible embodiments of this application, the extension sleeve 212 and the light-shielding gasket 213 can be provided separately or both can be provided.

[0034] In this embodiment, besides connecting the light-blocking plate 20 and the screen body 10 via the connecting nut 11 and the connecting screw 211, another way to connect the light-blocking plate 20 and the screen body 10 is to have male and female connectors respectively provided on the screen body 10 and the light-blocking plate 20. For example, male and female Velcro tabs can be placed on the light-blocking plate 20 and the screen body 10 respectively, and the connection between the light-blocking plate 20 and the screen body 10 can be achieved by adhesive. Alternatively, the light-blocking plate 20 and the screen body 10 can be snapped together using male and female snap-fit ​​connectors.

[0035] In this embodiment, the connection points between the light-blocking plate 20 and the screen body 10 include multiple points. Some of the connection points can be connected by connecting nuts 11 and connecting screws 211, while others can be connected by male and female connectors. This application does not make any specific limitations.

[0036] See Figure 5 and Figure 6 To ensure accurate relative positioning between the light-blocking plate 20 and the screen body 10 during installation, in some feasible embodiments of this application, the screen body 10 is provided with a first positioning member 12; the light-blocking plate 20 is provided with a second positioning member 22 at a position corresponding to the first positioning member 12, and the second positioning member 22 is positioned and connected to the first positioning member 12. Before fixing the light-blocking plate 20 to the screen body 10, the connection of the first positioning member 12 and the second positioning member 22 is completed first, thereby achieving initial positioning between the light-blocking plate 20 and the screen body 10 through the first positioning member 12 and the second positioning member 22, to ensure accurate relative positioning between the light-blocking plate 20 and the screen body 10, and to facilitate subsequent fixing, for example, to facilitate the connection and fixing between the connecting screw 211 and the connecting nut 11.

[0037] In one embodiment of this application, the first positioning member 12 and the second positioning member 22 are implemented such that one of them is a first magnet, and the other is a second magnet with the opposite magnetic properties, or a magnetic component. For example, the first positioning member 12 is a first magnet, which can be made into the shape of a nut and connected to the screen body 10 by fasteners. The second positioning member 22 can be a second magnet with the opposite magnetic properties, or a magnetic component such as an iron sheet. When the first positioning member 12 and the second positioning member 22 are close together, they can attract each other, thereby completing the positioning and achieving the initial positioning between the light-blocking plate 20 and the screen body 10.

[0038] Another way to implement the first positioning member 12 and the second positioning member 22 is that the first positioning member 12 and the second positioning member 22 are mutually cooperating convex and concave structures, such as positioning posts and positioning grooves / holes. After the positioning posts and positioning grooves / holes are connected to each other, the positioning function is completed to achieve the initial positioning between the light-blocking plate 20 and the screen body 10.

[0039] Further, see also Figure 5 and Figure 6 A second light shield 23 is provided on the light-blocking plate 20 at a position corresponding to the first positioning member 12, and a second positioning member 22 is provided on the second light shield 23 at a position corresponding to the first positioning member 12. The second light shield 23 can cover and secure the first positioning member 12, and also cover the area around the first positioning member 12, preventing light leakage around the first positioning member 12. At the same time, the second light shield 23 has a certain height, so that the first positioning member 12 can be accommodated inside the second light shield 23, preventing the protruding part of the first positioning member 12 from pushing up the light-blocking plate 20 and causing the relative position of the light-blocking plate 20 to move. The second positioning member 22 can be connected to the second light shield 23 by fasteners.

[0040] See Figure 1 and Figure 2 In one embodiment of this application, the screen body 10 may be implemented as follows: the screen body 10 includes a frame 13 and a lamp panel 14 disposed on the frame 13. The frame 13 includes a plurality of crossbeams 131 and a plurality of longitudinal beams 132. The light blocking plate 20 is detachably connected to the frame 13 and / or the lamp panel 14, and the light blocking plate 20 at least blocks the area where the lamp panel 14 is located.

[0041] Based on the setup of the main screen 10, and correspondingly, combined with Figure 1 and Figure 2 See Figure 5 One possible implementation of the light-blocking plate 20 is that the area of ​​the light-blocking plate 20 corresponding to the crossbeam 131 has a first bending portion 24, which covers the outer periphery of the crossbeam 131; the area of ​​the light-blocking plate 20 corresponding to the longitudinal beam 132 has a second bending portion 25, which covers at least a portion of the outer periphery of the longitudinal beam 132. The first bending portion 24 and the second bending portion 25 allow the light-blocking plate 20 to avoid interference from the crossbeams 131 and 132 on the frame 13, allowing the remaining portion of the light-blocking plate 20 to fit snugly against the lamp panel 14. This not only more effectively blocks light but also reduces the impact of wind on the LED strips on the lamp panel 14, thus preventing any impact on the quality of the displayed image.

[0042] In this embodiment, the size, shape, and position of the light-blocking plate 20 can be set according to different needs. For example, when the screen body 10 is to be completely blocked from light, a light-blocking plate 20 can be set according to the size of the screen body 10. The light-blocking plate 20 can be used to block the light of the screen body 10. In this setting, the first bending part 24 covers the outer periphery of the crossbeam 131, and the second bending part 25 covers at least the outer periphery of the longitudinal beam 132, so that the crossbeam 131 and the longitudinal beam 132 can also achieve good light blocking effect.

[0043] See Figure 1 , Figure 3 and Figure 5 Alternatively, multiple light-blocking plates 20 can be set up side by side on the back of the screen body 10, such as light-blocking plate 20a, light-blocking plate 20b, etc., to achieve overall light blocking of the screen body 10. When there are multiple light-blocking plates 20, the size of each light-blocking plate 20 is relatively small, which makes it easier to manufacture, effectively reduces manufacturing costs, and makes installation easier.

[0044] See also Figure 1 , Figure 3 and Figure 5 In some feasible embodiments of this application, there are multiple light-blocking plates 20, with two adjacent light-blocking plates 20 respectively disposed on both sides of a longitudinal beam 132. For example, light-blocking plates 20a and 20b are disposed on both sides of the longitudinal beam 132, and two adjacent light-blocking plates 20 are respectively covered and fastened to the outer periphery of both sides of the longitudinal beam 132 by second bending portions 25. For example, second bending portions 25a and 25b are covered and fastened to both sides of the longitudinal beam 132; see also Figure 3 and Figure 7 A pressure strip 15 is provided on the longitudinal beam 132, forming a clamping structure with the longitudinal beam 132, and clamping and fixing the second bent portions 25 on the two adjacent light-blocking plates 20 respectively. The pressure strip 15 fixes the edge of the second bent portion 25, making the edge of the second bent portion 25 stable, improving wind resistance, and reducing the occurrence of wind uplift. (Continue to see...) Figure 3 and Figure 7 One way to connect the pressure strip 15 and the longitudinal beam 132 is that the longitudinal beam 132 is provided with a nut, and the screw can be inserted through the pressure strip 15 and connected to the nut, thereby realizing the connection between the pressure strip 15 and the longitudinal beam 132.

[0045] In some feasible embodiments of this application, one possible implementation of the pressure strip 15 is that the pressure strip 15 is a hollow trapezoidal tube, and the pressure strip 15 forms a clamping structure with the longitudinal beam 132 through its long side. Based on the structure of the pressure strip 15, it possesses a certain degree of elasticity. The pressure strip 15 can be compressed by the screw's tightening action. Through the elasticity of the pressure strip 15, the second bent portion 25 is tightened while effectively preventing the screw from loosening. Furthermore, an anti-loosening spring can be provided inside the pressure strip 15. After the screw is connected to the nut on the longitudinal beam 132, the screw can continue to be tightened, thereby compressing the pressure strip 15 and the anti-loosening spring. The rebound force of the pressure strip 15 and the anti-loosening spring acts on the screw, thus tightening the second bent portion 25 while also preventing the screw from loosening.

[0046] Based on the technical solutions provided in the above embodiments, this application also provides a light-blocking plate 20, including the light-blocking plate 20 as described in the above embodiments. The implementation of the light-blocking plate 20 can be referred to or borrowed from the implementation methods of the light-blocking plate 20 in the above embodiments, and will not be described in detail here.

[0047] In summary, the technical solution provided in this application embodiment provides a detachable light-blocking plate 20 on the back of the transparent screen. When the transparent screen does not need to transmit light, the light-blocking plate 20 can be installed on the screen body 10 to block the light-transmitting area of ​​the transparent screen. When the transparent screen needs to transmit light, the light-blocking plate 20 can be removed from the screen body 10 so that the transparent screen can transmit light. Thus, the transparent screen can be set to transmit light or not transmit light according to different needs.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A transparent screen, characterized in that include: The screen body includes a display surface and a back surface disposed opposite to each other; A light-blocking plate is located on one side of the back and is detachably connected to the screen body; When the light-blocking plate is connected to the screen body, the light-blocking plate at least blocks the light-transmitting area on the back.

2. The transparent screen according to claim 1, wherein The screen body is equipped with a connecting nut; The light-blocking plate is provided with a first light-shielding cover at the position corresponding to the connecting nut. The first light-shielding cover is provided with a connecting hole at the position corresponding to the connecting nut, and the connecting screw passes through the connecting hole and connects with the connecting nut.

3. The transparent screen according to claim 2, wherein, Located inside the first light shield, an extension sleeve is provided on the outer periphery of the connecting hole, and the connecting screw can be passed through the extension sleeve and connected to the connecting nut. Located outside the first light shield, a light-shielding gasket is also provided between the connecting screw and the first light shield.

4. The transparent screen according to claim 1, wherein The screen body and the light-blocking plate are respectively provided with male connectors and female connectors for use.

5. The transparent screen according to any one of claims 1 to 4, characterized in that, The screen body is provided with a first positioning element; The light-blocking plate is provided with a second positioning element at the position corresponding to the first positioning element, and the second positioning element is positioned and connected to the first positioning element.

6. The transparent screen according to claim 5, wherein, One of the first positioning element and the second positioning element is a first magnet, and the other is a second magnet with the opposite magnetism to the first magnet, or a magnetic element.

7. The transparent screen according to claim 5, wherein, The light-blocking plate is provided with a second light-shielding cover at the position corresponding to the first positioning member, and the second light-shielding cover is provided with a second positioning member at the position corresponding to the first positioning member.

8. The transparent screen according to any one of claims 1 to 4, wherein, The screen body includes a frame and a light panel disposed on the frame, the frame including multiple cross beams and multiple longitudinal beams; The light-blocking plate is detachably connected to the frame and / or the lamp panel, and the light-blocking plate at least blocks the area where the lamp panel is located; The light-blocking plate has a first bent portion in the area corresponding to the crossbeam, and the first bent portion covers the outer periphery of the crossbeam; The light-blocking plate has a second bend in the area corresponding to the longitudinal beam, and the second bend covers at least a portion of the outer periphery of the longitudinal beam.

9. The transparent screen according to claim 8, wherein, There are multiple light-blocking plates, with two adjacent light-blocking plates respectively disposed on both sides of a longitudinal beam, and the two adjacent light-blocking plates respectively covering and fastening the outer periphery of both sides of the longitudinal beam through the second bending part; The longitudinal beam is provided with a pressure strip, which forms a clamping structure with the longitudinal beam and clamps and fixes the second bent portion on the two adjacent light-blocking plates respectively.

10. The transparent screen according to claim 9, wherein, The pressure strip is a hollow trapezoidal tube, and the pressure strip forms the clamping structure with the longitudinal beam through its long side.

11. A light shield, characterized by Includes the light-blocking plate as described in any one of claims 1 to 10.

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